xref: /openbmc/linux/drivers/usb/serial/ftdi_sio.c (revision b34e08d5)
1 /*
2  * USB FTDI SIO driver
3  *
4  *	Copyright (C) 2009 - 2013
5  *	    Johan Hovold (jhovold@gmail.com)
6  *	Copyright (C) 1999 - 2001
7  *	    Greg Kroah-Hartman (greg@kroah.com)
8  *          Bill Ryder (bryder@sgi.com)
9  *	Copyright (C) 2002
10  *	    Kuba Ober (kuba@mareimbrium.org)
11  *
12  *	This program is free software; you can redistribute it and/or modify
13  *	it under the terms of the GNU General Public License as published by
14  *	the Free Software Foundation; either version 2 of the License, or
15  *	(at your option) any later version.
16  *
17  * See Documentation/usb/usb-serial.txt for more information on using this
18  * driver
19  *
20  * See http://ftdi-usb-sio.sourceforge.net for up to date testing info
21  *	and extra documentation
22  *
23  * Change entries from 2004 and earlier can be found in versions of this
24  * file in kernel versions prior to the 2.6.24 release.
25  *
26  */
27 
28 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
29 /* Thanx to FTDI for so kindly providing details of the protocol required */
30 /*   to talk to the device */
31 /* Thanx to gkh and the rest of the usb dev group for all code I have
32    assimilated :-) */
33 
34 #include <linux/kernel.h>
35 #include <linux/errno.h>
36 #include <linux/slab.h>
37 #include <linux/tty.h>
38 #include <linux/tty_driver.h>
39 #include <linux/tty_flip.h>
40 #include <linux/module.h>
41 #include <linux/spinlock.h>
42 #include <linux/mutex.h>
43 #include <linux/uaccess.h>
44 #include <linux/usb.h>
45 #include <linux/serial.h>
46 #include <linux/usb/serial.h>
47 #include "ftdi_sio.h"
48 #include "ftdi_sio_ids.h"
49 
50 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr, Johan Hovold <jhovold@gmail.com>"
51 #define DRIVER_DESC "USB FTDI Serial Converters Driver"
52 
53 
54 struct ftdi_private {
55 	enum ftdi_chip_type chip_type;
56 				/* type of device, either SIO or FT8U232AM */
57 	int baud_base;		/* baud base clock for divisor setting */
58 	int custom_divisor;	/* custom_divisor kludge, this is for
59 				   baud_base (different from what goes to the
60 				   chip!) */
61 	__u16 last_set_data_urb_value ;
62 				/* the last data state set - needed for doing
63 				 * a break
64 				 */
65 	int flags;		/* some ASYNC_xxxx flags are supported */
66 	unsigned long last_dtr_rts;	/* saved modem control outputs */
67 	char prev_status;        /* Used for TIOCMIWAIT */
68 	char transmit_empty;	/* If transmitter is empty or not */
69 	__u16 interface;	/* FT2232C, FT2232H or FT4232H port interface
70 				   (0 for FT232/245) */
71 
72 	speed_t force_baud;	/* if non-zero, force the baud rate to
73 				   this value */
74 	int force_rtscts;	/* if non-zero, force RTS-CTS to always
75 				   be enabled */
76 
77 	unsigned int latency;		/* latency setting in use */
78 	unsigned short max_packet_size;
79 	struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() and change_speed() */
80 };
81 
82 /* struct ftdi_sio_quirk is used by devices requiring special attention. */
83 struct ftdi_sio_quirk {
84 	int (*probe)(struct usb_serial *);
85 	/* Special settings for probed ports. */
86 	void (*port_probe)(struct ftdi_private *);
87 };
88 
89 static int   ftdi_jtag_probe(struct usb_serial *serial);
90 static int   ftdi_mtxorb_hack_setup(struct usb_serial *serial);
91 static int   ftdi_NDI_device_setup(struct usb_serial *serial);
92 static int   ftdi_stmclite_probe(struct usb_serial *serial);
93 static int   ftdi_8u2232c_probe(struct usb_serial *serial);
94 static void  ftdi_USB_UIRT_setup(struct ftdi_private *priv);
95 static void  ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
96 
97 static struct ftdi_sio_quirk ftdi_jtag_quirk = {
98 	.probe	= ftdi_jtag_probe,
99 };
100 
101 static struct ftdi_sio_quirk ftdi_mtxorb_hack_quirk = {
102 	.probe  = ftdi_mtxorb_hack_setup,
103 };
104 
105 static struct ftdi_sio_quirk ftdi_NDI_device_quirk = {
106 	.probe	= ftdi_NDI_device_setup,
107 };
108 
109 static struct ftdi_sio_quirk ftdi_USB_UIRT_quirk = {
110 	.port_probe = ftdi_USB_UIRT_setup,
111 };
112 
113 static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
114 	.port_probe = ftdi_HE_TIRA1_setup,
115 };
116 
117 static struct ftdi_sio_quirk ftdi_stmclite_quirk = {
118 	.probe	= ftdi_stmclite_probe,
119 };
120 
121 static struct ftdi_sio_quirk ftdi_8u2232c_quirk = {
122 	.probe	= ftdi_8u2232c_probe,
123 };
124 
125 /*
126  * The 8U232AM has the same API as the sio except for:
127  * - it can support MUCH higher baudrates; up to:
128  *   o 921600 for RS232 and 2000000 for RS422/485 at 48MHz
129  *   o 230400 at 12MHz
130  *   so .. 8U232AM's baudrate setting codes are different
131  * - it has a two byte status code.
132  * - it returns characters every 16ms (the FTDI does it every 40ms)
133  *
134  * the bcdDevice value is used to differentiate FT232BM and FT245BM from
135  * the earlier FT8U232AM and FT8U232BM.  For now, include all known VID/PID
136  * combinations in both tables.
137  * FIXME: perhaps bcdDevice can also identify 12MHz FT8U232AM devices,
138  * but I don't know if those ever went into mass production. [Ian Abbott]
139  */
140 
141 
142 
143 /*
144  * Device ID not listed? Test it using
145  * /sys/bus/usb-serial/drivers/ftdi_sio/new_id and send a patch or report.
146  */
147 static const struct usb_device_id id_table_combined[] = {
148 	{ USB_DEVICE(FTDI_VID, FTDI_ZEITCONTROL_TAGTRACE_MIFARE_PID) },
149 	{ USB_DEVICE(FTDI_VID, FTDI_CTI_MINI_PID) },
150 	{ USB_DEVICE(FTDI_VID, FTDI_CTI_NANO_PID) },
151 	{ USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
152 	{ USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
153 	{ USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
154 	{ USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
155 	{ USB_DEVICE(FTDI_VID, FTDI_EV3CON_PID) },
156 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
157 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
158 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
159 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_3_PID) },
160 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_4_PID) },
161 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) },
162 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) },
163 	{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) },
164 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_CAT_PID) },
165 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_WKEY_PID) },
166 	{ USB_DEVICE(FTDI_VID, FTDI_USINT_RS232_PID) },
167 	{ USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
168 	{ USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
169 	{ USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
170 	{ USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
171 	{ USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
172 	{ USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
173 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
174 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
175 	{ USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
176 	{ USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) ,
177 		.driver_info = (kernel_ulong_t)&ftdi_8u2232c_quirk },
178 	{ USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
179 	{ USB_DEVICE(FTDI_VID, FTDI_232H_PID) },
180 	{ USB_DEVICE(FTDI_VID, FTDI_FTX_PID) },
181 	{ USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
182 	{ USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
183 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) },
184 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) },
185 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) },
186 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) },
187 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) },
188 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) },
189 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) },
190 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_CC_PID) },
191 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_AGP_PID) },
192 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
193 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
194 	{ USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
195 	{ USB_DEVICE(FTDI_VID, FTDI_TAGSYS_LP101_PID) },
196 	{ USB_DEVICE(FTDI_VID, FTDI_TAGSYS_P200X_PID) },
197 	{ USB_DEVICE(FTDI_VID, FTDI_LENZ_LIUSB_PID) },
198 	{ USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) },
199 	{ USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) },
200 	{ USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) },
201 	{ USB_DEVICE(FTDI_VID, FTDI_XF_633_PID) },
202 	{ USB_DEVICE(FTDI_VID, FTDI_XF_631_PID) },
203 	{ USB_DEVICE(FTDI_VID, FTDI_XF_635_PID) },
204 	{ USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) },
205 	{ USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) },
206 	{ USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) },
207 	{ USB_DEVICE(FTDI_VID, FTDI_URBAN_0_PID) },
208 	{ USB_DEVICE(FTDI_VID, FTDI_URBAN_1_PID) },
209 	{ USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
210 	{ USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) },
211 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) },
212 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_1_PID) },
213 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_2_PID) },
214 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_3_PID) },
215 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_4_PID) },
216 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) },
217 	{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
218 	{ USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
219 	{ USB_DEVICE(FTDI_VID, FTDI_VARDAAN_PID) },
220 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
221 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
222 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
223 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0103_PID) },
224 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0104_PID) },
225 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0105_PID) },
226 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0106_PID) },
227 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0107_PID) },
228 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0108_PID) },
229 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0109_PID) },
230 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010A_PID) },
231 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010B_PID) },
232 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010C_PID) },
233 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010D_PID) },
234 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010E_PID) },
235 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_010F_PID) },
236 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0110_PID) },
237 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0111_PID) },
238 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0112_PID) },
239 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0113_PID) },
240 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0114_PID) },
241 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0115_PID) },
242 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0116_PID) },
243 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0117_PID) },
244 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0118_PID) },
245 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0119_PID) },
246 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011A_PID) },
247 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011B_PID) },
248 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011C_PID) },
249 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011D_PID) },
250 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011E_PID) },
251 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_011F_PID) },
252 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0120_PID) },
253 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0121_PID) },
254 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0122_PID) },
255 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0123_PID) },
256 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0124_PID) },
257 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0125_PID) },
258 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0126_PID) },
259 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0127_PID),
260 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
261 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0128_PID) },
262 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0129_PID) },
263 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012A_PID) },
264 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012B_PID) },
265 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012C_PID),
266 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
267 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012D_PID) },
268 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012E_PID) },
269 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_012F_PID) },
270 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0130_PID) },
271 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0131_PID) },
272 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0132_PID) },
273 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0133_PID) },
274 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0134_PID) },
275 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0135_PID) },
276 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0136_PID) },
277 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0137_PID) },
278 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0138_PID) },
279 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0139_PID) },
280 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013A_PID) },
281 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013B_PID) },
282 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013C_PID) },
283 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013D_PID) },
284 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013E_PID) },
285 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_013F_PID) },
286 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0140_PID) },
287 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0141_PID) },
288 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0142_PID) },
289 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0143_PID) },
290 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0144_PID) },
291 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0145_PID) },
292 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0146_PID) },
293 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0147_PID) },
294 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0148_PID) },
295 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0149_PID) },
296 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014A_PID) },
297 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014B_PID) },
298 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014C_PID) },
299 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014D_PID) },
300 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014E_PID) },
301 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_014F_PID) },
302 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0150_PID) },
303 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0151_PID) },
304 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0152_PID) },
305 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0153_PID),
306 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
307 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0154_PID),
308 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
309 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0155_PID),
310 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
311 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0156_PID),
312 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
313 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0157_PID),
314 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
315 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0158_PID),
316 		.driver_info = (kernel_ulong_t)&ftdi_mtxorb_hack_quirk },
317 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0159_PID) },
318 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015A_PID) },
319 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015B_PID) },
320 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015C_PID) },
321 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015D_PID) },
322 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015E_PID) },
323 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_015F_PID) },
324 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0160_PID) },
325 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0161_PID) },
326 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0162_PID) },
327 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0163_PID) },
328 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0164_PID) },
329 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0165_PID) },
330 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0166_PID) },
331 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0167_PID) },
332 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0168_PID) },
333 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0169_PID) },
334 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016A_PID) },
335 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016B_PID) },
336 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016C_PID) },
337 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016D_PID) },
338 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016E_PID) },
339 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_016F_PID) },
340 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0170_PID) },
341 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0171_PID) },
342 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0172_PID) },
343 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0173_PID) },
344 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0174_PID) },
345 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0175_PID) },
346 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0176_PID) },
347 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0177_PID) },
348 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0178_PID) },
349 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0179_PID) },
350 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017A_PID) },
351 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017B_PID) },
352 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017C_PID) },
353 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017D_PID) },
354 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017E_PID) },
355 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_017F_PID) },
356 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0180_PID) },
357 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0181_PID) },
358 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0182_PID) },
359 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0183_PID) },
360 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0184_PID) },
361 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0185_PID) },
362 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0186_PID) },
363 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0187_PID) },
364 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0188_PID) },
365 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0189_PID) },
366 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018A_PID) },
367 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018B_PID) },
368 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018C_PID) },
369 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018D_PID) },
370 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018E_PID) },
371 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_018F_PID) },
372 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0190_PID) },
373 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0191_PID) },
374 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0192_PID) },
375 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0193_PID) },
376 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0194_PID) },
377 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0195_PID) },
378 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0196_PID) },
379 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0197_PID) },
380 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0198_PID) },
381 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0199_PID) },
382 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019A_PID) },
383 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019B_PID) },
384 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019C_PID) },
385 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019D_PID) },
386 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019E_PID) },
387 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_019F_PID) },
388 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A0_PID) },
389 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A1_PID) },
390 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A2_PID) },
391 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A3_PID) },
392 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A4_PID) },
393 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A5_PID) },
394 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A6_PID) },
395 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A7_PID) },
396 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A8_PID) },
397 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01A9_PID) },
398 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AA_PID) },
399 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AB_PID) },
400 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AC_PID) },
401 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AD_PID) },
402 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AE_PID) },
403 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01AF_PID) },
404 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B0_PID) },
405 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B1_PID) },
406 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B2_PID) },
407 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B3_PID) },
408 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B4_PID) },
409 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B5_PID) },
410 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B6_PID) },
411 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B7_PID) },
412 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B8_PID) },
413 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01B9_PID) },
414 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BA_PID) },
415 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BB_PID) },
416 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BC_PID) },
417 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BD_PID) },
418 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BE_PID) },
419 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01BF_PID) },
420 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C0_PID) },
421 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C1_PID) },
422 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C2_PID) },
423 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C3_PID) },
424 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C4_PID) },
425 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C5_PID) },
426 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C6_PID) },
427 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C7_PID) },
428 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C8_PID) },
429 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01C9_PID) },
430 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CA_PID) },
431 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CB_PID) },
432 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CC_PID) },
433 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CD_PID) },
434 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CE_PID) },
435 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01CF_PID) },
436 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D0_PID) },
437 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D1_PID) },
438 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D2_PID) },
439 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D3_PID) },
440 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D4_PID) },
441 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D5_PID) },
442 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D6_PID) },
443 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D7_PID) },
444 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D8_PID) },
445 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01D9_PID) },
446 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DA_PID) },
447 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DB_PID) },
448 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DC_PID) },
449 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DD_PID) },
450 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DE_PID) },
451 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01DF_PID) },
452 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E0_PID) },
453 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E1_PID) },
454 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E2_PID) },
455 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E3_PID) },
456 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E4_PID) },
457 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E5_PID) },
458 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E6_PID) },
459 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E7_PID) },
460 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E8_PID) },
461 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01E9_PID) },
462 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EA_PID) },
463 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EB_PID) },
464 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EC_PID) },
465 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01ED_PID) },
466 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EE_PID) },
467 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01EF_PID) },
468 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F0_PID) },
469 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F1_PID) },
470 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F2_PID) },
471 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F3_PID) },
472 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F4_PID) },
473 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F5_PID) },
474 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F6_PID) },
475 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F7_PID) },
476 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F8_PID) },
477 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01F9_PID) },
478 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FA_PID) },
479 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FB_PID) },
480 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FC_PID) },
481 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FD_PID) },
482 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FE_PID) },
483 	{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_01FF_PID) },
484 	{ USB_DEVICE(FTDI_VID, FTDI_PERLE_ULTRAPORT_PID) },
485 	{ USB_DEVICE(FTDI_VID, FTDI_PIEGROUP_PID) },
486 	{ USB_DEVICE(FTDI_VID, FTDI_TNC_X_PID) },
487 	{ USB_DEVICE(FTDI_VID, FTDI_USBX_707_PID) },
488 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2101_PID) },
489 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2102_PID) },
490 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2103_PID) },
491 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2104_PID) },
492 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2106_PID) },
493 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_1_PID) },
494 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2201_2_PID) },
495 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_1_PID) },
496 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2202_2_PID) },
497 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_1_PID) },
498 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2203_2_PID) },
499 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_1_PID) },
500 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_2_PID) },
501 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_3_PID) },
502 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2401_4_PID) },
503 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_1_PID) },
504 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_2_PID) },
505 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_3_PID) },
506 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2402_4_PID) },
507 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_1_PID) },
508 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_2_PID) },
509 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_3_PID) },
510 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2403_4_PID) },
511 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_1_PID) },
512 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_2_PID) },
513 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_3_PID) },
514 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_4_PID) },
515 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_5_PID) },
516 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_6_PID) },
517 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_7_PID) },
518 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2801_8_PID) },
519 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_1_PID) },
520 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_2_PID) },
521 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_3_PID) },
522 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_4_PID) },
523 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_5_PID) },
524 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_6_PID) },
525 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_7_PID) },
526 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2802_8_PID) },
527 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_1_PID) },
528 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_2_PID) },
529 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_3_PID) },
530 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_4_PID) },
531 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_5_PID) },
532 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) },
533 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) },
534 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) },
535 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_1_PID) },
536 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_2_PID) },
537 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_3_PID) },
538 	{ USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_4_PID) },
539 	{ USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) },
540 	{ USB_DEVICE(OCT_VID, OCT_US101_PID) },
541 	{ USB_DEVICE(OCT_VID, OCT_DK201_PID) },
542 	{ USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID),
543 		.driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk },
544 	{ USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID),
545 		.driver_info = (kernel_ulong_t)&ftdi_USB_UIRT_quirk },
546 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_1) },
547 	{ USB_DEVICE(FTDI_VID, PROTEGO_R2X0) },
548 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_3) },
549 	{ USB_DEVICE(FTDI_VID, PROTEGO_SPECIAL_4) },
550 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E808_PID) },
551 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E809_PID) },
552 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80A_PID) },
553 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80B_PID) },
554 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80C_PID) },
555 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80D_PID) },
556 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80E_PID) },
557 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E80F_PID) },
558 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E888_PID) },
559 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E889_PID) },
560 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88A_PID) },
561 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88B_PID) },
562 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88C_PID) },
563 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88D_PID) },
564 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88E_PID) },
565 	{ USB_DEVICE(FTDI_VID, FTDI_GUDEADS_E88F_PID) },
566 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UO100_PID) },
567 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UM100_PID) },
568 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UR100_PID) },
569 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_ALC8500_PID) },
570 	{ USB_DEVICE(FTDI_VID, FTDI_PYRAMID_PID) },
571 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1000PC_PID) },
572 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_US485_PID) },
573 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PICPRO_PID) },
574 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PCMCIA_PID) },
575 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PK1_PID) },
576 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_RS232MON_PID) },
577 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) },
578 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
579 	{ USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
580 	{ USB_DEVICE(FTDI_VID, FTDI_TAVIR_STK500_PID) },
581 	{ USB_DEVICE(FTDI_VID, FTDI_TIAO_UMPA_PID),
582 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
583 	/*
584 	 * ELV devices:
585 	 */
586 	{ USB_DEVICE(FTDI_ELV_VID, FTDI_ELV_WS300_PID) },
587 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
588 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
589 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
590 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
591 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
592 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
593 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
594 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
595 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
596 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
597 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
598 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UDF77_PID) },
599 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UIO88_PID) },
600 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UAD8_PID) },
601 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UDA7_PID) },
602 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_USI2_PID) },
603 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_T1100_PID) },
604 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCD200_PID) },
605 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_ULA200_PID) },
606 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_CSI8_PID) },
607 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1000DL_PID) },
608 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
609 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
610 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
611 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
612 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
613 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
614 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
615 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
616 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
617 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
618 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
619 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
620 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
621 	{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
622 	{ USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
623 	{ USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
624 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
625 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_1_PID) },
626 	{ USB_DEVICE(FTDI_VID, LINX_FUTURE_2_PID) },
627 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU20_0_PID) },
628 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU40_1_PID) },
629 	{ USB_DEVICE(FTDI_VID, FTDI_CCSMACHX_2_PID) },
630 	{ USB_DEVICE(FTDI_VID, FTDI_CCSLOAD_N_GO_3_PID) },
631 	{ USB_DEVICE(FTDI_VID, FTDI_CCSICDU64_4_PID) },
632 	{ USB_DEVICE(FTDI_VID, FTDI_CCSPRIME8_5_PID) },
633 	{ USB_DEVICE(FTDI_VID, INSIDE_ACCESSO) },
634 	{ USB_DEVICE(INTREPID_VID, INTREPID_VALUECAN_PID) },
635 	{ USB_DEVICE(INTREPID_VID, INTREPID_NEOVI_PID) },
636 	{ USB_DEVICE(FALCOM_VID, FALCOM_TWIST_PID) },
637 	{ USB_DEVICE(FALCOM_VID, FALCOM_SAMBA_PID) },
638 	{ USB_DEVICE(FTDI_VID, FTDI_SUUNTO_SPORTS_PID) },
639 	{ USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) },
640 	{ USB_DEVICE(TTI_VID, TTI_QL355P_PID) },
641 	{ USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
642 	{ USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) },
643 	{ USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
644 	{ USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) },
645 	{ USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
646 	{ USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
647 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
648 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4_PID) },
649 	{ USB_DEVICE(BANDB_VID, BANDB_USPTL4_PID) },
650 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_2_PID) },
651 	{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2DR_PID) },
652 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR2_PID) },
653 	{ USB_DEVICE(BANDB_VID, BANDB_USOPTL4DR_PID) },
654 	{ USB_DEVICE(BANDB_VID, BANDB_485USB9F_2W_PID) },
655 	{ USB_DEVICE(BANDB_VID, BANDB_485USB9F_4W_PID) },
656 	{ USB_DEVICE(BANDB_VID, BANDB_232USB9M_PID) },
657 	{ USB_DEVICE(BANDB_VID, BANDB_485USBTB_2W_PID) },
658 	{ USB_DEVICE(BANDB_VID, BANDB_485USBTB_4W_PID) },
659 	{ USB_DEVICE(BANDB_VID, BANDB_TTL5USB9M_PID) },
660 	{ USB_DEVICE(BANDB_VID, BANDB_TTL3USB9M_PID) },
661 	{ USB_DEVICE(BANDB_VID, BANDB_ZZ_PROG1_USB_PID) },
662 	{ USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) },
663 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) },
664 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) },
665 	{ USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_3_PID) },
666 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) },
667 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) },
668 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) },
669 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_3_PID) },
670 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_4_PID) },
671 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) },
672 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) },
673 	{ USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) },
674 	{ USB_DEVICE(FTDI_VID, FTDI_OMNI1509) },
675 	{ USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) },
676 	{ USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) },
677 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) },
678 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_YS_PID) },
679 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y6_PID) },
680 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y8_PID) },
681 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_IC_PID) },
682 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_DB9_PID) },
683 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_RS232_PID) },
684 	{ USB_DEVICE(FTDI_VID, FTDI_MHAM_Y9_PID) },
685 	{ USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_VCP_PID) },
686 	{ USB_DEVICE(FTDI_VID, FTDI_TERATRONIK_D2XX_PID) },
687 	{ USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
688 	{ USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
689 	{ USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
690 	{ USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
691 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
692 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
693 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HR_PID) },
694 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16HRC_PID) },
695 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16IC_PID) },
696 	{ USB_DEVICE(KOBIL_VID, KOBIL_CONV_B1_PID) },
697 	{ USB_DEVICE(KOBIL_VID, KOBIL_CONV_KAAN_PID) },
698 	{ USB_DEVICE(POSIFLEX_VID, POSIFLEX_PP7000_PID) },
699 	{ USB_DEVICE(FTDI_VID, FTDI_TTUSB_PID) },
700 	{ USB_DEVICE(FTDI_VID, FTDI_ECLO_COM_1WIRE_PID) },
701 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
702 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
703 	{ USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
704 	{ USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
705 	{ USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
706 	{ USB_DEVICE(FTDI_VID, FTDI_NZR_SEM_USB_PID) },
707 	{ USB_DEVICE(ICOM_VID, ICOM_ID_1_PID) },
708 	{ USB_DEVICE(ICOM_VID, ICOM_OPC_U_UC_PID) },
709 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C1_PID) },
710 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2C2_PID) },
711 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2D_PID) },
712 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2VT_PID) },
713 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2VR_PID) },
714 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVT_PID) },
715 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVR_PID) },
716 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVT_PID) },
717 	{ USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVR_PID) },
718 	{ USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
719 	{ USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) },
720 	{ USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) },
721 	{ USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) },
722 	{ USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) },
723 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) },
724 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) },
725 	{ USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13U_PID) },
726 	{ USB_DEVICE(ELEKTOR_VID, ELEKTOR_FT323R_PID) },
727 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_HUC_PID),
728 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
729 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_SPECTRA_SCU_PID),
730 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
731 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_2_PID),
732 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
733 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_FUTURE_3_PID),
734 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
735 	{ USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID),
736 		.driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk },
737 	{ USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) },
738 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S03_PID) },
739 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_59_PID) },
740 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57A_PID) },
741 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57B_PID) },
742 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29A_PID) },
743 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29B_PID) },
744 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29F_PID) },
745 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62B_PID) },
746 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S01_PID) },
747 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63_PID) },
748 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29C_PID) },
749 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_81B_PID) },
750 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_82B_PID) },
751 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5D_PID) },
752 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K4Y_PID) },
753 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5G_PID) },
754 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S05_PID) },
755 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_60_PID) },
756 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_61_PID) },
757 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62_PID) },
758 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63B_PID) },
759 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_64_PID) },
760 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_65_PID) },
761 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92_PID) },
762 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92D_PID) },
763 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_W5R_PID) },
764 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_A5R_PID) },
765 	{ USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_PW1_PID) },
766 	{ USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) },
767 	{ USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) },
768 	{ USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) },
769 	{ USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) },
770 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) },
771 	{ USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) },
772 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID),
773 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
774 	{ USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID),
775 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
776 	{ USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID),
777 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
778 	{ USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID),
779 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
780 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_DEVEL_BOARD_PID),
781 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
782 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID),
783 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
784 	{ USB_DEVICE(FTDI_VID, LMI_LM3S_ICDI_BOARD_PID),
785 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
786 	{ USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID),
787 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
788 	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
789 	{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
790 
791 	/* Papouch devices based on FTDI chip */
792 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_PID) },
793 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_PID) },
794 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_PID) },
795 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_2_PID) },
796 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_2_PID) },
797 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_2_PID) },
798 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485S_PID) },
799 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485C_PID) },
800 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_LEC_PID) },
801 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB232_PID) },
802 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
803 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_IRAMP_PID) },
804 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK5_PID) },
805 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO8x8_PID) },
806 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
807 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x2_PID) },
808 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO10x1_PID) },
809 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO30x3_PID) },
810 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO60x3_PID) },
811 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x16_PID) },
812 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO3x32_PID) },
813 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK6_PID) },
814 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_UPSUSB_PID) },
815 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_MU_PID) },
816 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_SIMUKEY_PID) },
817 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
818 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMUX_PID) },
819 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMSR_PID) },
820 
821 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
822 	{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
823 	{ USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
824 	{ USB_DEVICE(FTDI_VID, DIEBOLD_BCS_SE923_PID) },
825 	{ USB_DEVICE(ATMEL_VID, STK541_PID) },
826 	{ USB_DEVICE(DE_VID, STB_PID) },
827 	{ USB_DEVICE(DE_VID, WHT_PID) },
828 	{ USB_DEVICE(ADI_VID, ADI_GNICE_PID),
829 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
830 	{ USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID),
831 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
832 	{ USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID,
833 					USB_CLASS_VENDOR_SPEC,
834 					USB_SUBCLASS_VENDOR_SPEC, 0x00) },
835 	{ USB_DEVICE(JETI_VID, JETI_SPC1201_PID) },
836 	{ USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID),
837 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
838 	{ USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
839 	{ USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
840 	{ USB_DEVICE(FTDI_VID, PI_C865_PID) },
841 	{ USB_DEVICE(FTDI_VID, PI_C857_PID) },
842 	{ USB_DEVICE(PI_VID, PI_C866_PID) },
843 	{ USB_DEVICE(PI_VID, PI_C663_PID) },
844 	{ USB_DEVICE(PI_VID, PI_C725_PID) },
845 	{ USB_DEVICE(PI_VID, PI_E517_PID) },
846 	{ USB_DEVICE(PI_VID, PI_C863_PID) },
847 	{ USB_DEVICE(PI_VID, PI_E861_PID) },
848 	{ USB_DEVICE(PI_VID, PI_C867_PID) },
849 	{ USB_DEVICE(PI_VID, PI_E609_PID) },
850 	{ USB_DEVICE(PI_VID, PI_E709_PID) },
851 	{ USB_DEVICE(PI_VID, PI_100F_PID) },
852 	{ USB_DEVICE(PI_VID, PI_1011_PID) },
853 	{ USB_DEVICE(PI_VID, PI_1012_PID) },
854 	{ USB_DEVICE(PI_VID, PI_1013_PID) },
855 	{ USB_DEVICE(PI_VID, PI_1014_PID) },
856 	{ USB_DEVICE(PI_VID, PI_1015_PID) },
857 	{ USB_DEVICE(PI_VID, PI_1016_PID) },
858 	{ USB_DEVICE(KONDO_VID, KONDO_USB_SERIAL_PID) },
859 	{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
860 	{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
861 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
862 	{ USB_DEVICE(FTDI_VID, TI_XDS100V2_PID),
863 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
864 	{ USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) },
865 	{ USB_DEVICE(FTDI_VID, HAMEG_HO720_PID) },
866 	{ USB_DEVICE(FTDI_VID, HAMEG_HO730_PID) },
867 	{ USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) },
868 	{ USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) },
869 	{ USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) },
870 	{ USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) },
871 	{ USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) },
872 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_ST_PID),
873 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
874 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SLITE_PID),
875 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
876 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH2_PID),
877 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
878 	{ USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH4_PID),
879 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
880 	{ USB_DEVICE(FTDI_VID, SEGWAY_RMP200_PID) },
881 	{ USB_DEVICE(FTDI_VID, ACCESIO_COM4SM_PID) },
882 	{ USB_DEVICE(IONICS_VID, IONICS_PLUGCOMPUTER_PID),
883 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
884 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_24_MASTER_WING_PID) },
885 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_PC_WING_PID) },
886 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_USB_DMX_PID) },
887 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MIDI_TIMECODE_PID) },
888 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MINI_WING_PID) },
889 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MAXI_WING_PID) },
890 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MEDIA_WING_PID) },
891 	{ USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_WING_PID) },
892 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LOGBOOKML_PID) },
893 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) },
894 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) },
895 	{ USB_DEVICE(FTDI_VID, FTDI_CINTERION_MC55I_PID) },
896 	{ USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
897 	{ USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
898 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
899 	{ USB_DEVICE(ST_VID, ST_STMCLT_2232_PID),
900 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
901 	{ USB_DEVICE(ST_VID, ST_STMCLT_4232_PID),
902 		.driver_info = (kernel_ulong_t)&ftdi_stmclite_quirk },
903 	{ USB_DEVICE(FTDI_VID, FTDI_RF_R106) },
904 	{ USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID),
905 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
906 	{ USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) },
907 	/* Crucible Devices */
908 	{ USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) },
909 	{ USB_DEVICE(FTDI_VID, FTDI_Z3X_PID) },
910 	/* Cressi Devices */
911 	{ USB_DEVICE(FTDI_VID, FTDI_CRESSI_PID) },
912 	{ }					/* Terminating entry */
913 };
914 
915 MODULE_DEVICE_TABLE(usb, id_table_combined);
916 
917 static const char *ftdi_chip_name[] = {
918 	[SIO] = "SIO",	/* the serial part of FT8U100AX */
919 	[FT8U232AM] = "FT8U232AM",
920 	[FT232BM] = "FT232BM",
921 	[FT2232C] = "FT2232C",
922 	[FT232RL] = "FT232RL",
923 	[FT2232H] = "FT2232H",
924 	[FT4232H] = "FT4232H",
925 	[FT232H]  = "FT232H",
926 	[FTX]     = "FT-X"
927 };
928 
929 
930 /* Used for TIOCMIWAIT */
931 #define FTDI_STATUS_B0_MASK	(FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD)
932 #define FTDI_STATUS_B1_MASK	(FTDI_RS_BI)
933 /* End TIOCMIWAIT */
934 
935 /* function prototypes for a FTDI serial converter */
936 static int  ftdi_sio_probe(struct usb_serial *serial,
937 					const struct usb_device_id *id);
938 static int  ftdi_sio_port_probe(struct usb_serial_port *port);
939 static int  ftdi_sio_port_remove(struct usb_serial_port *port);
940 static int  ftdi_open(struct tty_struct *tty, struct usb_serial_port *port);
941 static void ftdi_dtr_rts(struct usb_serial_port *port, int on);
942 static void ftdi_process_read_urb(struct urb *urb);
943 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
944 						void *dest, size_t size);
945 static void ftdi_set_termios(struct tty_struct *tty,
946 			struct usb_serial_port *port, struct ktermios *old);
947 static int  ftdi_tiocmget(struct tty_struct *tty);
948 static int  ftdi_tiocmset(struct tty_struct *tty,
949 			unsigned int set, unsigned int clear);
950 static int  ftdi_ioctl(struct tty_struct *tty,
951 			unsigned int cmd, unsigned long arg);
952 static void ftdi_break_ctl(struct tty_struct *tty, int break_state);
953 static bool ftdi_tx_empty(struct usb_serial_port *port);
954 static int ftdi_get_modem_status(struct usb_serial_port *port,
955 						unsigned char status[2]);
956 
957 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base);
958 static unsigned short int ftdi_232am_baud_to_divisor(int baud);
959 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base);
960 static __u32 ftdi_232bm_baud_to_divisor(int baud);
961 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base);
962 static __u32 ftdi_2232h_baud_to_divisor(int baud);
963 
964 static struct usb_serial_driver ftdi_sio_device = {
965 	.driver = {
966 		.owner =	THIS_MODULE,
967 		.name =		"ftdi_sio",
968 	},
969 	.description =		"FTDI USB Serial Device",
970 	.id_table =		id_table_combined,
971 	.num_ports =		1,
972 	.bulk_in_size =		512,
973 	.bulk_out_size =	256,
974 	.probe =		ftdi_sio_probe,
975 	.port_probe =		ftdi_sio_port_probe,
976 	.port_remove =		ftdi_sio_port_remove,
977 	.open =			ftdi_open,
978 	.dtr_rts =		ftdi_dtr_rts,
979 	.throttle =		usb_serial_generic_throttle,
980 	.unthrottle =		usb_serial_generic_unthrottle,
981 	.process_read_urb =	ftdi_process_read_urb,
982 	.prepare_write_buffer =	ftdi_prepare_write_buffer,
983 	.tiocmget =		ftdi_tiocmget,
984 	.tiocmset =		ftdi_tiocmset,
985 	.tiocmiwait =		usb_serial_generic_tiocmiwait,
986 	.get_icount =           usb_serial_generic_get_icount,
987 	.ioctl =		ftdi_ioctl,
988 	.set_termios =		ftdi_set_termios,
989 	.break_ctl =		ftdi_break_ctl,
990 	.tx_empty =		ftdi_tx_empty,
991 };
992 
993 static struct usb_serial_driver * const serial_drivers[] = {
994 	&ftdi_sio_device, NULL
995 };
996 
997 
998 #define WDR_TIMEOUT 5000 /* default urb timeout */
999 #define WDR_SHORT_TIMEOUT 1000	/* shorter urb timeout */
1000 
1001 /*
1002  * ***************************************************************************
1003  * Utility functions
1004  * ***************************************************************************
1005  */
1006 
1007 static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base)
1008 {
1009 	unsigned short int divisor;
1010 	/* divisor shifted 3 bits to the left */
1011 	int divisor3 = base / 2 / baud;
1012 	if ((divisor3 & 0x7) == 7)
1013 		divisor3++; /* round x.7/8 up to x+1 */
1014 	divisor = divisor3 >> 3;
1015 	divisor3 &= 0x7;
1016 	if (divisor3 == 1)
1017 		divisor |= 0xc000;
1018 	else if (divisor3 >= 4)
1019 		divisor |= 0x4000;
1020 	else if (divisor3 != 0)
1021 		divisor |= 0x8000;
1022 	else if (divisor == 1)
1023 		divisor = 0;	/* special case for maximum baud rate */
1024 	return divisor;
1025 }
1026 
1027 static unsigned short int ftdi_232am_baud_to_divisor(int baud)
1028 {
1029 	 return ftdi_232am_baud_base_to_divisor(baud, 48000000);
1030 }
1031 
1032 static __u32 ftdi_232bm_baud_base_to_divisor(int baud, int base)
1033 {
1034 	static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
1035 	__u32 divisor;
1036 	/* divisor shifted 3 bits to the left */
1037 	int divisor3 = base / 2 / baud;
1038 	divisor = divisor3 >> 3;
1039 	divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
1040 	/* Deal with special cases for highest baud rates. */
1041 	if (divisor == 1)
1042 		divisor = 0;
1043 	else if (divisor == 0x4001)
1044 		divisor = 1;
1045 	return divisor;
1046 }
1047 
1048 static __u32 ftdi_232bm_baud_to_divisor(int baud)
1049 {
1050 	 return ftdi_232bm_baud_base_to_divisor(baud, 48000000);
1051 }
1052 
1053 static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base)
1054 {
1055 	static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 };
1056 	__u32 divisor;
1057 	int divisor3;
1058 
1059 	/* hi-speed baud rate is 10-bit sampling instead of 16-bit */
1060 	divisor3 = base * 8 / (baud * 10);
1061 
1062 	divisor = divisor3 >> 3;
1063 	divisor |= (__u32)divfrac[divisor3 & 0x7] << 14;
1064 	/* Deal with special cases for highest baud rates. */
1065 	if (divisor == 1)
1066 		divisor = 0;
1067 	else if (divisor == 0x4001)
1068 		divisor = 1;
1069 	/*
1070 	 * Set this bit to turn off a divide by 2.5 on baud rate generator
1071 	 * This enables baud rates up to 12Mbaud but cannot reach below 1200
1072 	 * baud with this bit set
1073 	 */
1074 	divisor |= 0x00020000;
1075 	return divisor;
1076 }
1077 
1078 static __u32 ftdi_2232h_baud_to_divisor(int baud)
1079 {
1080 	 return ftdi_2232h_baud_base_to_divisor(baud, 120000000);
1081 }
1082 
1083 #define set_mctrl(port, set)		update_mctrl((port), (set), 0)
1084 #define clear_mctrl(port, clear)	update_mctrl((port), 0, (clear))
1085 
1086 static int update_mctrl(struct usb_serial_port *port, unsigned int set,
1087 							unsigned int clear)
1088 {
1089 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1090 	struct device *dev = &port->dev;
1091 	unsigned urb_value;
1092 	int rv;
1093 
1094 	if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
1095 		dev_dbg(dev, "%s - DTR|RTS not being set|cleared\n", __func__);
1096 		return 0;	/* no change */
1097 	}
1098 
1099 	clear &= ~set;	/* 'set' takes precedence over 'clear' */
1100 	urb_value = 0;
1101 	if (clear & TIOCM_DTR)
1102 		urb_value |= FTDI_SIO_SET_DTR_LOW;
1103 	if (clear & TIOCM_RTS)
1104 		urb_value |= FTDI_SIO_SET_RTS_LOW;
1105 	if (set & TIOCM_DTR)
1106 		urb_value |= FTDI_SIO_SET_DTR_HIGH;
1107 	if (set & TIOCM_RTS)
1108 		urb_value |= FTDI_SIO_SET_RTS_HIGH;
1109 	rv = usb_control_msg(port->serial->dev,
1110 			       usb_sndctrlpipe(port->serial->dev, 0),
1111 			       FTDI_SIO_SET_MODEM_CTRL_REQUEST,
1112 			       FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE,
1113 			       urb_value, priv->interface,
1114 			       NULL, 0, WDR_TIMEOUT);
1115 	if (rv < 0) {
1116 		dev_dbg(dev, "%s Error from MODEM_CTRL urb: DTR %s, RTS %s\n",
1117 			__func__,
1118 			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
1119 			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
1120 		rv = usb_translate_errors(rv);
1121 	} else {
1122 		dev_dbg(dev, "%s - DTR %s, RTS %s\n", __func__,
1123 			(set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged",
1124 			(set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged");
1125 		/* FIXME: locking on last_dtr_rts */
1126 		priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set;
1127 	}
1128 	return rv;
1129 }
1130 
1131 
1132 static __u32 get_ftdi_divisor(struct tty_struct *tty,
1133 						struct usb_serial_port *port)
1134 {
1135 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1136 	struct device *dev = &port->dev;
1137 	__u32 div_value = 0;
1138 	int div_okay = 1;
1139 	int baud;
1140 
1141 	/*
1142 	 * The logic involved in setting the baudrate can be cleanly split into
1143 	 * 3 steps.
1144 	 * 1. Standard baud rates are set in tty->termios->c_cflag
1145 	 * 2. If these are not enough, you can set any speed using alt_speed as
1146 	 * follows:
1147 	 *    - set tty->termios->c_cflag speed to B38400
1148 	 *    - set your real speed in tty->alt_speed; it gets ignored when
1149 	 *      alt_speed==0, (or)
1150 	 *    - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1151 	 *	follows:
1152 	 *      flags & ASYNC_SPD_MASK == ASYNC_SPD_[HI, VHI, SHI, WARP],
1153 	 *	this just sets alt_speed to (HI: 57600, VHI: 115200,
1154 	 *	SHI: 230400, WARP: 460800)
1155 	 * ** Steps 1, 2 are done courtesy of tty_get_baud_rate
1156 	 * 3. You can also set baud rate by setting custom divisor as follows
1157 	 *    - set tty->termios->c_cflag speed to B38400
1158 	 *    - call TIOCSSERIAL ioctl with (struct serial_struct) set as
1159 	 *	follows:
1160 	 *      o flags & ASYNC_SPD_MASK == ASYNC_SPD_CUST
1161 	 *      o custom_divisor set to baud_base / your_new_baudrate
1162 	 * ** Step 3 is done courtesy of code borrowed from serial.c
1163 	 *    I should really spend some time and separate + move this common
1164 	 *    code to serial.c, it is replicated in nearly every serial driver
1165 	 *    you see.
1166 	 */
1167 
1168 	/* 1. Get the baud rate from the tty settings, this observes
1169 	      alt_speed hack */
1170 
1171 	baud = tty_get_baud_rate(tty);
1172 	dev_dbg(dev, "%s - tty_get_baud_rate reports speed %d\n", __func__, baud);
1173 
1174 	/* 2. Observe async-compatible custom_divisor hack, update baudrate
1175 	   if needed */
1176 
1177 	if (baud == 38400 &&
1178 	    ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1179 	     (priv->custom_divisor)) {
1180 		baud = priv->baud_base / priv->custom_divisor;
1181 		dev_dbg(dev, "%s - custom divisor %d sets baud rate to %d\n",
1182 			__func__, priv->custom_divisor, baud);
1183 	}
1184 
1185 	/* 3. Convert baudrate to device-specific divisor */
1186 
1187 	if (!baud)
1188 		baud = 9600;
1189 	switch (priv->chip_type) {
1190 	case SIO: /* SIO chip */
1191 		switch (baud) {
1192 		case 300: div_value = ftdi_sio_b300; break;
1193 		case 600: div_value = ftdi_sio_b600; break;
1194 		case 1200: div_value = ftdi_sio_b1200; break;
1195 		case 2400: div_value = ftdi_sio_b2400; break;
1196 		case 4800: div_value = ftdi_sio_b4800; break;
1197 		case 9600: div_value = ftdi_sio_b9600; break;
1198 		case 19200: div_value = ftdi_sio_b19200; break;
1199 		case 38400: div_value = ftdi_sio_b38400; break;
1200 		case 57600: div_value = ftdi_sio_b57600;  break;
1201 		case 115200: div_value = ftdi_sio_b115200; break;
1202 		} /* baud */
1203 		if (div_value == 0) {
1204 			dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n",
1205 				__func__,  baud);
1206 			div_value = ftdi_sio_b9600;
1207 			baud = 9600;
1208 			div_okay = 0;
1209 		}
1210 		break;
1211 	case FT8U232AM: /* 8U232AM chip */
1212 		if (baud <= 3000000) {
1213 			div_value = ftdi_232am_baud_to_divisor(baud);
1214 		} else {
1215 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1216 			baud = 9600;
1217 			div_value = ftdi_232am_baud_to_divisor(9600);
1218 			div_okay = 0;
1219 		}
1220 		break;
1221 	case FT232BM: /* FT232BM chip */
1222 	case FT2232C: /* FT2232C chip */
1223 	case FT232RL: /* FT232RL chip */
1224 	case FTX:     /* FT-X series */
1225 		if (baud <= 3000000) {
1226 			__u16 product_id = le16_to_cpu(
1227 				port->serial->dev->descriptor.idProduct);
1228 			if (((FTDI_NDI_HUC_PID == product_id) ||
1229 			     (FTDI_NDI_SPECTRA_SCU_PID == product_id) ||
1230 			     (FTDI_NDI_FUTURE_2_PID == product_id) ||
1231 			     (FTDI_NDI_FUTURE_3_PID == product_id) ||
1232 			     (FTDI_NDI_AURORA_SCU_PID == product_id)) &&
1233 			    (baud == 19200)) {
1234 				baud = 1200000;
1235 			}
1236 			div_value = ftdi_232bm_baud_to_divisor(baud);
1237 		} else {
1238 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1239 			div_value = ftdi_232bm_baud_to_divisor(9600);
1240 			div_okay = 0;
1241 			baud = 9600;
1242 		}
1243 		break;
1244 	case FT2232H: /* FT2232H chip */
1245 	case FT4232H: /* FT4232H chip */
1246 	case FT232H:  /* FT232H chip */
1247 		if ((baud <= 12000000) && (baud >= 1200)) {
1248 			div_value = ftdi_2232h_baud_to_divisor(baud);
1249 		} else if (baud < 1200) {
1250 			div_value = ftdi_232bm_baud_to_divisor(baud);
1251 		} else {
1252 			dev_dbg(dev, "%s - Baud rate too high!\n", __func__);
1253 			div_value = ftdi_232bm_baud_to_divisor(9600);
1254 			div_okay = 0;
1255 			baud = 9600;
1256 		}
1257 		break;
1258 	} /* priv->chip_type */
1259 
1260 	if (div_okay) {
1261 		dev_dbg(dev, "%s - Baud rate set to %d (divisor 0x%lX) on chip %s\n",
1262 			__func__, baud, (unsigned long)div_value,
1263 			ftdi_chip_name[priv->chip_type]);
1264 	}
1265 
1266 	tty_encode_baud_rate(tty, baud, baud);
1267 	return div_value;
1268 }
1269 
1270 static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
1271 {
1272 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1273 	__u16 urb_value;
1274 	__u16 urb_index;
1275 	__u32 urb_index_value;
1276 	int rv;
1277 
1278 	urb_index_value = get_ftdi_divisor(tty, port);
1279 	urb_value = (__u16)urb_index_value;
1280 	urb_index = (__u16)(urb_index_value >> 16);
1281 	if ((priv->chip_type == FT2232C) || (priv->chip_type == FT2232H) ||
1282 		(priv->chip_type == FT4232H) || (priv->chip_type == FT232H)) {
1283 		/* Probably the BM type needs the MSB of the encoded fractional
1284 		 * divider also moved like for the chips above. Any infos? */
1285 		urb_index = (__u16)((urb_index << 8) | priv->interface);
1286 	}
1287 
1288 	rv = usb_control_msg(port->serial->dev,
1289 			    usb_sndctrlpipe(port->serial->dev, 0),
1290 			    FTDI_SIO_SET_BAUDRATE_REQUEST,
1291 			    FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
1292 			    urb_value, urb_index,
1293 			    NULL, 0, WDR_SHORT_TIMEOUT);
1294 	return rv;
1295 }
1296 
1297 static int write_latency_timer(struct usb_serial_port *port)
1298 {
1299 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1300 	struct usb_device *udev = port->serial->dev;
1301 	int rv;
1302 	int l = priv->latency;
1303 
1304 	if (priv->flags & ASYNC_LOW_LATENCY)
1305 		l = 1;
1306 
1307 	dev_dbg(&port->dev, "%s: setting latency timer = %i\n", __func__, l);
1308 
1309 	rv = usb_control_msg(udev,
1310 			     usb_sndctrlpipe(udev, 0),
1311 			     FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1312 			     FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1313 			     l, priv->interface,
1314 			     NULL, 0, WDR_TIMEOUT);
1315 	if (rv < 0)
1316 		dev_err(&port->dev, "Unable to write latency timer: %i\n", rv);
1317 	return rv;
1318 }
1319 
1320 static int read_latency_timer(struct usb_serial_port *port)
1321 {
1322 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1323 	struct usb_device *udev = port->serial->dev;
1324 	unsigned char *buf;
1325 	int rv;
1326 
1327 	buf = kmalloc(1, GFP_KERNEL);
1328 	if (!buf)
1329 		return -ENOMEM;
1330 
1331 	rv = usb_control_msg(udev,
1332 			     usb_rcvctrlpipe(udev, 0),
1333 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST,
1334 			     FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE,
1335 			     0, priv->interface,
1336 			     buf, 1, WDR_TIMEOUT);
1337 	if (rv < 0)
1338 		dev_err(&port->dev, "Unable to read latency timer: %i\n", rv);
1339 	else
1340 		priv->latency = buf[0];
1341 
1342 	kfree(buf);
1343 
1344 	return rv;
1345 }
1346 
1347 static int get_serial_info(struct usb_serial_port *port,
1348 				struct serial_struct __user *retinfo)
1349 {
1350 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1351 	struct serial_struct tmp;
1352 
1353 	if (!retinfo)
1354 		return -EFAULT;
1355 	memset(&tmp, 0, sizeof(tmp));
1356 	tmp.flags = priv->flags;
1357 	tmp.baud_base = priv->baud_base;
1358 	tmp.custom_divisor = priv->custom_divisor;
1359 	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
1360 		return -EFAULT;
1361 	return 0;
1362 }
1363 
1364 static int set_serial_info(struct tty_struct *tty,
1365 	struct usb_serial_port *port, struct serial_struct __user *newinfo)
1366 {
1367 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1368 	struct serial_struct new_serial;
1369 	struct ftdi_private old_priv;
1370 
1371 	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
1372 		return -EFAULT;
1373 
1374 	mutex_lock(&priv->cfg_lock);
1375 	old_priv = *priv;
1376 
1377 	/* Do error checking and permission checking */
1378 
1379 	if (!capable(CAP_SYS_ADMIN)) {
1380 		if (((new_serial.flags & ~ASYNC_USR_MASK) !=
1381 		     (priv->flags & ~ASYNC_USR_MASK))) {
1382 			mutex_unlock(&priv->cfg_lock);
1383 			return -EPERM;
1384 		}
1385 		priv->flags = ((priv->flags & ~ASYNC_USR_MASK) |
1386 			       (new_serial.flags & ASYNC_USR_MASK));
1387 		priv->custom_divisor = new_serial.custom_divisor;
1388 		goto check_and_exit;
1389 	}
1390 
1391 	if (new_serial.baud_base != priv->baud_base) {
1392 		mutex_unlock(&priv->cfg_lock);
1393 		return -EINVAL;
1394 	}
1395 
1396 	/* Make the changes - these are privileged changes! */
1397 
1398 	priv->flags = ((priv->flags & ~ASYNC_FLAGS) |
1399 					(new_serial.flags & ASYNC_FLAGS));
1400 	priv->custom_divisor = new_serial.custom_divisor;
1401 
1402 	write_latency_timer(port);
1403 
1404 check_and_exit:
1405 	if ((old_priv.flags & ASYNC_SPD_MASK) !=
1406 	     (priv->flags & ASYNC_SPD_MASK)) {
1407 		if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
1408 			tty->alt_speed = 57600;
1409 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
1410 			tty->alt_speed = 115200;
1411 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1412 			tty->alt_speed = 230400;
1413 		else if ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1414 			tty->alt_speed = 460800;
1415 		else
1416 			tty->alt_speed = 0;
1417 	}
1418 	if (((old_priv.flags & ASYNC_SPD_MASK) !=
1419 	     (priv->flags & ASYNC_SPD_MASK)) ||
1420 	    (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
1421 	     (old_priv.custom_divisor != priv->custom_divisor))) {
1422 		change_speed(tty, port);
1423 		mutex_unlock(&priv->cfg_lock);
1424 	}
1425 	else
1426 		mutex_unlock(&priv->cfg_lock);
1427 	return 0;
1428 }
1429 
1430 static int get_lsr_info(struct usb_serial_port *port,
1431 			struct serial_struct __user *retinfo)
1432 {
1433 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1434 	unsigned int result = 0;
1435 
1436 	if (!retinfo)
1437 		return -EFAULT;
1438 
1439 	if (priv->transmit_empty)
1440 		result = TIOCSER_TEMT;
1441 
1442 	if (copy_to_user(retinfo, &result, sizeof(unsigned int)))
1443 		return -EFAULT;
1444 	return 0;
1445 }
1446 
1447 
1448 /* Determine type of FTDI chip based on USB config and descriptor. */
1449 static void ftdi_determine_type(struct usb_serial_port *port)
1450 {
1451 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1452 	struct usb_serial *serial = port->serial;
1453 	struct usb_device *udev = serial->dev;
1454 	unsigned version;
1455 	unsigned interfaces;
1456 
1457 	/* Assume it is not the original SIO device for now. */
1458 	priv->baud_base = 48000000 / 2;
1459 
1460 	version = le16_to_cpu(udev->descriptor.bcdDevice);
1461 	interfaces = udev->actconfig->desc.bNumInterfaces;
1462 	dev_dbg(&port->dev, "%s: bcdDevice = 0x%x, bNumInterfaces = %u\n", __func__,
1463 		version, interfaces);
1464 	if (interfaces > 1) {
1465 		int inter;
1466 
1467 		/* Multiple interfaces.*/
1468 		if (version == 0x0800) {
1469 			priv->chip_type = FT4232H;
1470 			/* Hi-speed - baud clock runs at 120MHz */
1471 			priv->baud_base = 120000000 / 2;
1472 		} else if (version == 0x0700) {
1473 			priv->chip_type = FT2232H;
1474 			/* Hi-speed - baud clock runs at 120MHz */
1475 			priv->baud_base = 120000000 / 2;
1476 		} else
1477 			priv->chip_type = FT2232C;
1478 
1479 		/* Determine interface code. */
1480 		inter = serial->interface->altsetting->desc.bInterfaceNumber;
1481 		if (inter == 0) {
1482 			priv->interface = INTERFACE_A;
1483 		} else  if (inter == 1) {
1484 			priv->interface = INTERFACE_B;
1485 		} else  if (inter == 2) {
1486 			priv->interface = INTERFACE_C;
1487 		} else  if (inter == 3) {
1488 			priv->interface = INTERFACE_D;
1489 		}
1490 		/* BM-type devices have a bug where bcdDevice gets set
1491 		 * to 0x200 when iSerialNumber is 0.  */
1492 		if (version < 0x500) {
1493 			dev_dbg(&port->dev,
1494 				"%s: something fishy - bcdDevice too low for multi-interface device\n",
1495 				__func__);
1496 		}
1497 	} else if (version < 0x200) {
1498 		/* Old device.  Assume it's the original SIO. */
1499 		priv->chip_type = SIO;
1500 		priv->baud_base = 12000000 / 16;
1501 	} else if (version < 0x400) {
1502 		/* Assume it's an FT8U232AM (or FT8U245AM) */
1503 		/* (It might be a BM because of the iSerialNumber bug,
1504 		 * but it will still work as an AM device.) */
1505 		priv->chip_type = FT8U232AM;
1506 	} else if (version < 0x600) {
1507 		/* Assume it's an FT232BM (or FT245BM) */
1508 		priv->chip_type = FT232BM;
1509 	} else if (version < 0x900) {
1510 		/* Assume it's an FT232RL */
1511 		priv->chip_type = FT232RL;
1512 	} else if (version < 0x1000) {
1513 		/* Assume it's an FT232H */
1514 		priv->chip_type = FT232H;
1515 	} else {
1516 		/* Assume it's an FT-X series device */
1517 		priv->chip_type = FTX;
1518 	}
1519 
1520 	dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]);
1521 }
1522 
1523 
1524 /* Determine the maximum packet size for the device.  This depends on the chip
1525  * type and the USB host capabilities.  The value should be obtained from the
1526  * device descriptor as the chip will use the appropriate values for the host.*/
1527 static void ftdi_set_max_packet_size(struct usb_serial_port *port)
1528 {
1529 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1530 	struct usb_serial *serial = port->serial;
1531 	struct usb_device *udev = serial->dev;
1532 
1533 	struct usb_interface *interface = serial->interface;
1534 	struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
1535 
1536 	unsigned num_endpoints;
1537 	int i;
1538 
1539 	num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
1540 	dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
1541 
1542 	/* NOTE: some customers have programmed FT232R/FT245R devices
1543 	 * with an endpoint size of 0 - not good.  In this case, we
1544 	 * want to override the endpoint descriptor setting and use a
1545 	 * value of 64 for wMaxPacketSize */
1546 	for (i = 0; i < num_endpoints; i++) {
1547 		dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
1548 			interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
1549 		ep_desc = &interface->cur_altsetting->endpoint[i].desc;
1550 		if (ep_desc->wMaxPacketSize == 0) {
1551 			ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1552 			dev_info(&udev->dev, "Overriding wMaxPacketSize on endpoint %d\n", i);
1553 		}
1554 	}
1555 
1556 	/* set max packet size based on descriptor */
1557 	priv->max_packet_size = usb_endpoint_maxp(ep_desc);
1558 
1559 	dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
1560 }
1561 
1562 
1563 /*
1564  * ***************************************************************************
1565  * Sysfs Attribute
1566  * ***************************************************************************
1567  */
1568 
1569 static ssize_t latency_timer_show(struct device *dev,
1570 				  struct device_attribute *attr, char *buf)
1571 {
1572 	struct usb_serial_port *port = to_usb_serial_port(dev);
1573 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1574 	if (priv->flags & ASYNC_LOW_LATENCY)
1575 		return sprintf(buf, "1\n");
1576 	else
1577 		return sprintf(buf, "%i\n", priv->latency);
1578 }
1579 
1580 /* Write a new value of the latency timer, in units of milliseconds. */
1581 static ssize_t latency_timer_store(struct device *dev,
1582 				   struct device_attribute *attr,
1583 				   const char *valbuf, size_t count)
1584 {
1585 	struct usb_serial_port *port = to_usb_serial_port(dev);
1586 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1587 	int v = simple_strtoul(valbuf, NULL, 10);
1588 	int rv;
1589 
1590 	priv->latency = v;
1591 	rv = write_latency_timer(port);
1592 	if (rv < 0)
1593 		return -EIO;
1594 	return count;
1595 }
1596 static DEVICE_ATTR_RW(latency_timer);
1597 
1598 /* Write an event character directly to the FTDI register.  The ASCII
1599    value is in the low 8 bits, with the enable bit in the 9th bit. */
1600 static ssize_t store_event_char(struct device *dev,
1601 	struct device_attribute *attr, const char *valbuf, size_t count)
1602 {
1603 	struct usb_serial_port *port = to_usb_serial_port(dev);
1604 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1605 	struct usb_device *udev = port->serial->dev;
1606 	int v = simple_strtoul(valbuf, NULL, 10);
1607 	int rv;
1608 
1609 	dev_dbg(&port->dev, "%s: setting event char = %i\n", __func__, v);
1610 
1611 	rv = usb_control_msg(udev,
1612 			     usb_sndctrlpipe(udev, 0),
1613 			     FTDI_SIO_SET_EVENT_CHAR_REQUEST,
1614 			     FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE,
1615 			     v, priv->interface,
1616 			     NULL, 0, WDR_TIMEOUT);
1617 	if (rv < 0) {
1618 		dev_dbg(&port->dev, "Unable to write event character: %i\n", rv);
1619 		return -EIO;
1620 	}
1621 
1622 	return count;
1623 }
1624 static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char);
1625 
1626 static int create_sysfs_attrs(struct usb_serial_port *port)
1627 {
1628 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1629 	int retval = 0;
1630 
1631 	/* XXX I've no idea if the original SIO supports the event_char
1632 	 * sysfs parameter, so I'm playing it safe.  */
1633 	if (priv->chip_type != SIO) {
1634 		dev_dbg(&port->dev, "sysfs attributes for %s\n", ftdi_chip_name[priv->chip_type]);
1635 		retval = device_create_file(&port->dev, &dev_attr_event_char);
1636 		if ((!retval) &&
1637 		    (priv->chip_type == FT232BM ||
1638 		     priv->chip_type == FT2232C ||
1639 		     priv->chip_type == FT232RL ||
1640 		     priv->chip_type == FT2232H ||
1641 		     priv->chip_type == FT4232H ||
1642 		     priv->chip_type == FT232H ||
1643 		     priv->chip_type == FTX)) {
1644 			retval = device_create_file(&port->dev,
1645 						    &dev_attr_latency_timer);
1646 		}
1647 	}
1648 	return retval;
1649 }
1650 
1651 static void remove_sysfs_attrs(struct usb_serial_port *port)
1652 {
1653 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1654 
1655 	/* XXX see create_sysfs_attrs */
1656 	if (priv->chip_type != SIO) {
1657 		device_remove_file(&port->dev, &dev_attr_event_char);
1658 		if (priv->chip_type == FT232BM ||
1659 		    priv->chip_type == FT2232C ||
1660 		    priv->chip_type == FT232RL ||
1661 		    priv->chip_type == FT2232H ||
1662 		    priv->chip_type == FT4232H ||
1663 		    priv->chip_type == FT232H ||
1664 		    priv->chip_type == FTX) {
1665 			device_remove_file(&port->dev, &dev_attr_latency_timer);
1666 		}
1667 	}
1668 
1669 }
1670 
1671 /*
1672  * ***************************************************************************
1673  * FTDI driver specific functions
1674  * ***************************************************************************
1675  */
1676 
1677 /* Probe function to check for special devices */
1678 static int ftdi_sio_probe(struct usb_serial *serial,
1679 					const struct usb_device_id *id)
1680 {
1681 	struct ftdi_sio_quirk *quirk =
1682 				(struct ftdi_sio_quirk *)id->driver_info;
1683 
1684 	if (quirk && quirk->probe) {
1685 		int ret = quirk->probe(serial);
1686 		if (ret != 0)
1687 			return ret;
1688 	}
1689 
1690 	usb_set_serial_data(serial, (void *)id->driver_info);
1691 
1692 	return 0;
1693 }
1694 
1695 static int ftdi_sio_port_probe(struct usb_serial_port *port)
1696 {
1697 	struct ftdi_private *priv;
1698 	struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial);
1699 
1700 
1701 	priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL);
1702 	if (!priv)
1703 		return -ENOMEM;
1704 
1705 	mutex_init(&priv->cfg_lock);
1706 
1707 	priv->flags = ASYNC_LOW_LATENCY;
1708 
1709 	if (quirk && quirk->port_probe)
1710 		quirk->port_probe(priv);
1711 
1712 	usb_set_serial_port_data(port, priv);
1713 
1714 	ftdi_determine_type(port);
1715 	ftdi_set_max_packet_size(port);
1716 	if (read_latency_timer(port) < 0)
1717 		priv->latency = 16;
1718 	write_latency_timer(port);
1719 	create_sysfs_attrs(port);
1720 	return 0;
1721 }
1722 
1723 /* Setup for the USB-UIRT device, which requires hardwired
1724  * baudrate (38400 gets mapped to 312500) */
1725 /* Called from usbserial:serial_probe */
1726 static void ftdi_USB_UIRT_setup(struct ftdi_private *priv)
1727 {
1728 	priv->flags |= ASYNC_SPD_CUST;
1729 	priv->custom_divisor = 77;
1730 	priv->force_baud = 38400;
1731 }
1732 
1733 /* Setup for the HE-TIRA1 device, which requires hardwired
1734  * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled.  */
1735 
1736 static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv)
1737 {
1738 	priv->flags |= ASYNC_SPD_CUST;
1739 	priv->custom_divisor = 240;
1740 	priv->force_baud = 38400;
1741 	priv->force_rtscts = 1;
1742 }
1743 
1744 /*
1745  * Module parameter to control latency timer for NDI FTDI-based USB devices.
1746  * If this value is not set in /etc/modprobe.d/ its value will be set
1747  * to 1ms.
1748  */
1749 static int ndi_latency_timer = 1;
1750 
1751 /* Setup for the NDI FTDI-based USB devices, which requires hardwired
1752  * baudrate (19200 gets mapped to 1200000).
1753  *
1754  * Called from usbserial:serial_probe.
1755  */
1756 static int ftdi_NDI_device_setup(struct usb_serial *serial)
1757 {
1758 	struct usb_device *udev = serial->dev;
1759 	int latency = ndi_latency_timer;
1760 
1761 	if (latency == 0)
1762 		latency = 1;
1763 	if (latency > 99)
1764 		latency = 99;
1765 
1766 	dev_dbg(&udev->dev, "%s setting NDI device latency to %d\n", __func__, latency);
1767 	dev_info(&udev->dev, "NDI device with a latency value of %d\n", latency);
1768 
1769 	/* FIXME: errors are not returned */
1770 	usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1771 				FTDI_SIO_SET_LATENCY_TIMER_REQUEST,
1772 				FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE,
1773 				latency, 0, NULL, 0, WDR_TIMEOUT);
1774 	return 0;
1775 }
1776 
1777 /*
1778  * First port on JTAG adaptors such as Olimex arm-usb-ocd or the FIC/OpenMoko
1779  * Neo1973 Debug Board is reserved for JTAG interface and can be accessed from
1780  * userspace using openocd.
1781  */
1782 static int ftdi_jtag_probe(struct usb_serial *serial)
1783 {
1784 	struct usb_device *udev = serial->dev;
1785 	struct usb_interface *interface = serial->interface;
1786 
1787 	if (interface == udev->actconfig->interface[0]) {
1788 		dev_info(&udev->dev,
1789 			 "Ignoring serial port reserved for JTAG\n");
1790 		return -ENODEV;
1791 	}
1792 
1793 	return 0;
1794 }
1795 
1796 static int ftdi_8u2232c_probe(struct usb_serial *serial)
1797 {
1798 	struct usb_device *udev = serial->dev;
1799 
1800 	if ((udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems")) ||
1801 	    (udev->product && !strcmp(udev->product, "BeagleBone/XDS100V2")))
1802 		return ftdi_jtag_probe(serial);
1803 
1804 	return 0;
1805 }
1806 
1807 /*
1808  * First two ports on JTAG adaptors using an FT4232 such as STMicroelectronics's
1809  * ST Micro Connect Lite are reserved for JTAG or other non-UART interfaces and
1810  * can be accessed from userspace.
1811  * The next two ports are enabled as UARTs by default, where port 2 is
1812  * a conventional RS-232 UART.
1813  */
1814 static int ftdi_stmclite_probe(struct usb_serial *serial)
1815 {
1816 	struct usb_device *udev = serial->dev;
1817 	struct usb_interface *interface = serial->interface;
1818 
1819 	if (interface == udev->actconfig->interface[0] ||
1820 	    interface == udev->actconfig->interface[1]) {
1821 		dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n");
1822 		return -ENODEV;
1823 	}
1824 
1825 	return 0;
1826 }
1827 
1828 /*
1829  * The Matrix Orbital VK204-25-USB has an invalid IN endpoint.
1830  * We have to correct it if we want to read from it.
1831  */
1832 static int ftdi_mtxorb_hack_setup(struct usb_serial *serial)
1833 {
1834 	struct usb_host_endpoint *ep = serial->dev->ep_in[1];
1835 	struct usb_endpoint_descriptor *ep_desc = &ep->desc;
1836 
1837 	if (ep->enabled && ep_desc->wMaxPacketSize == 0) {
1838 		ep_desc->wMaxPacketSize = cpu_to_le16(0x40);
1839 		dev_info(&serial->dev->dev,
1840 			 "Fixing invalid wMaxPacketSize on read pipe\n");
1841 	}
1842 
1843 	return 0;
1844 }
1845 
1846 static int ftdi_sio_port_remove(struct usb_serial_port *port)
1847 {
1848 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1849 
1850 	remove_sysfs_attrs(port);
1851 
1852 	kfree(priv);
1853 
1854 	return 0;
1855 }
1856 
1857 static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port)
1858 {
1859 	struct usb_device *dev = port->serial->dev;
1860 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1861 
1862 	/* No error checking for this (will get errors later anyway) */
1863 	/* See ftdi_sio.h for description of what is reset */
1864 	usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1865 			FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE,
1866 			FTDI_SIO_RESET_SIO,
1867 			priv->interface, NULL, 0, WDR_TIMEOUT);
1868 
1869 	/* Termios defaults are set by usb_serial_init. We don't change
1870 	   port->tty->termios - this would lose speed settings, etc.
1871 	   This is same behaviour as serial.c/rs_open() - Kuba */
1872 
1873 	/* ftdi_set_termios  will send usb control messages */
1874 	if (tty)
1875 		ftdi_set_termios(tty, port, NULL);
1876 
1877 	return usb_serial_generic_open(tty, port);
1878 }
1879 
1880 static void ftdi_dtr_rts(struct usb_serial_port *port, int on)
1881 {
1882 	struct ftdi_private *priv = usb_get_serial_port_data(port);
1883 
1884 	/* Disable flow control */
1885 	if (!on) {
1886 		if (usb_control_msg(port->serial->dev,
1887 			    usb_sndctrlpipe(port->serial->dev, 0),
1888 			    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
1889 			    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
1890 			    0, priv->interface, NULL, 0,
1891 			    WDR_TIMEOUT) < 0) {
1892 			dev_err(&port->dev, "error from flowcontrol urb\n");
1893 		}
1894 	}
1895 	/* drop RTS and DTR */
1896 	if (on)
1897 		set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1898 	else
1899 		clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
1900 }
1901 
1902 /* The SIO requires the first byte to have:
1903  *  B0 1
1904  *  B1 0
1905  *  B2..7 length of message excluding byte 0
1906  *
1907  * The new devices do not require this byte
1908  */
1909 static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
1910 						void *dest, size_t size)
1911 {
1912 	struct ftdi_private *priv;
1913 	int count;
1914 	unsigned long flags;
1915 
1916 	priv = usb_get_serial_port_data(port);
1917 
1918 	if (priv->chip_type == SIO) {
1919 		unsigned char *buffer = dest;
1920 		int i, len, c;
1921 
1922 		count = 0;
1923 		spin_lock_irqsave(&port->lock, flags);
1924 		for (i = 0; i < size - 1; i += priv->max_packet_size) {
1925 			len = min_t(int, size - i, priv->max_packet_size) - 1;
1926 			c = kfifo_out(&port->write_fifo, &buffer[i + 1], len);
1927 			if (!c)
1928 				break;
1929 			port->icount.tx += c;
1930 			buffer[i] = (c << 2) + 1;
1931 			count += c + 1;
1932 		}
1933 		spin_unlock_irqrestore(&port->lock, flags);
1934 	} else {
1935 		count = kfifo_out_locked(&port->write_fifo, dest, size,
1936 								&port->lock);
1937 		port->icount.tx += count;
1938 	}
1939 
1940 	return count;
1941 }
1942 
1943 #define FTDI_RS_ERR_MASK (FTDI_RS_BI | FTDI_RS_PE | FTDI_RS_FE | FTDI_RS_OE)
1944 
1945 static int ftdi_process_packet(struct usb_serial_port *port,
1946 		struct ftdi_private *priv, char *packet, int len)
1947 {
1948 	int i;
1949 	char status;
1950 	char flag;
1951 	char *ch;
1952 
1953 	if (len < 2) {
1954 		dev_dbg(&port->dev, "malformed packet\n");
1955 		return 0;
1956 	}
1957 
1958 	/* Compare new line status to the old one, signal if different/
1959 	   N.B. packet may be processed more than once, but differences
1960 	   are only processed once.  */
1961 	status = packet[0] & FTDI_STATUS_B0_MASK;
1962 	if (status != priv->prev_status) {
1963 		char diff_status = status ^ priv->prev_status;
1964 
1965 		if (diff_status & FTDI_RS0_CTS)
1966 			port->icount.cts++;
1967 		if (diff_status & FTDI_RS0_DSR)
1968 			port->icount.dsr++;
1969 		if (diff_status & FTDI_RS0_RI)
1970 			port->icount.rng++;
1971 		if (diff_status & FTDI_RS0_RLSD) {
1972 			struct tty_struct *tty;
1973 
1974 			port->icount.dcd++;
1975 			tty = tty_port_tty_get(&port->port);
1976 			if (tty)
1977 				usb_serial_handle_dcd_change(port, tty,
1978 						status & FTDI_RS0_RLSD);
1979 			tty_kref_put(tty);
1980 		}
1981 
1982 		wake_up_interruptible(&port->port.delta_msr_wait);
1983 		priv->prev_status = status;
1984 	}
1985 
1986 	flag = TTY_NORMAL;
1987 	if (packet[1] & FTDI_RS_ERR_MASK) {
1988 		/* Break takes precedence over parity, which takes precedence
1989 		 * over framing errors */
1990 		if (packet[1] & FTDI_RS_BI) {
1991 			flag = TTY_BREAK;
1992 			port->icount.brk++;
1993 			usb_serial_handle_break(port);
1994 		} else if (packet[1] & FTDI_RS_PE) {
1995 			flag = TTY_PARITY;
1996 			port->icount.parity++;
1997 		} else if (packet[1] & FTDI_RS_FE) {
1998 			flag = TTY_FRAME;
1999 			port->icount.frame++;
2000 		}
2001 		/* Overrun is special, not associated with a char */
2002 		if (packet[1] & FTDI_RS_OE) {
2003 			port->icount.overrun++;
2004 			tty_insert_flip_char(&port->port, 0, TTY_OVERRUN);
2005 		}
2006 	}
2007 
2008 	/* save if the transmitter is empty or not */
2009 	if (packet[1] & FTDI_RS_TEMT)
2010 		priv->transmit_empty = 1;
2011 	else
2012 		priv->transmit_empty = 0;
2013 
2014 	len -= 2;
2015 	if (!len)
2016 		return 0;	/* status only */
2017 	port->icount.rx += len;
2018 	ch = packet + 2;
2019 
2020 	if (port->port.console && port->sysrq) {
2021 		for (i = 0; i < len; i++, ch++) {
2022 			if (!usb_serial_handle_sysrq_char(port, *ch))
2023 				tty_insert_flip_char(&port->port, *ch, flag);
2024 		}
2025 	} else {
2026 		tty_insert_flip_string_fixed_flag(&port->port, ch, flag, len);
2027 	}
2028 
2029 	return len;
2030 }
2031 
2032 static void ftdi_process_read_urb(struct urb *urb)
2033 {
2034 	struct usb_serial_port *port = urb->context;
2035 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2036 	char *data = (char *)urb->transfer_buffer;
2037 	int i;
2038 	int len;
2039 	int count = 0;
2040 
2041 	for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
2042 		len = min_t(int, urb->actual_length - i, priv->max_packet_size);
2043 		count += ftdi_process_packet(port, priv, &data[i], len);
2044 	}
2045 
2046 	if (count)
2047 		tty_flip_buffer_push(&port->port);
2048 }
2049 
2050 static void ftdi_break_ctl(struct tty_struct *tty, int break_state)
2051 {
2052 	struct usb_serial_port *port = tty->driver_data;
2053 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2054 	__u16 urb_value;
2055 
2056 	/* break_state = -1 to turn on break, and 0 to turn off break */
2057 	/* see drivers/char/tty_io.c to see it used */
2058 	/* last_set_data_urb_value NEVER has the break bit set in it */
2059 
2060 	if (break_state)
2061 		urb_value = priv->last_set_data_urb_value | FTDI_SIO_SET_BREAK;
2062 	else
2063 		urb_value = priv->last_set_data_urb_value;
2064 
2065 	if (usb_control_msg(port->serial->dev,
2066 			usb_sndctrlpipe(port->serial->dev, 0),
2067 			FTDI_SIO_SET_DATA_REQUEST,
2068 			FTDI_SIO_SET_DATA_REQUEST_TYPE,
2069 			urb_value , priv->interface,
2070 			NULL, 0, WDR_TIMEOUT) < 0) {
2071 		dev_err(&port->dev, "%s FAILED to enable/disable break state (state was %d)\n",
2072 			__func__, break_state);
2073 	}
2074 
2075 	dev_dbg(&port->dev, "%s break state is %d - urb is %d\n", __func__,
2076 		break_state, urb_value);
2077 
2078 }
2079 
2080 static bool ftdi_tx_empty(struct usb_serial_port *port)
2081 {
2082 	unsigned char buf[2];
2083 	int ret;
2084 
2085 	ret = ftdi_get_modem_status(port, buf);
2086 	if (ret == 2) {
2087 		if (!(buf[1] & FTDI_RS_TEMT))
2088 			return false;
2089 	}
2090 
2091 	return true;
2092 }
2093 
2094 /* old_termios contains the original termios settings and tty->termios contains
2095  * the new setting to be used
2096  * WARNING: set_termios calls this with old_termios in kernel space
2097  */
2098 static void ftdi_set_termios(struct tty_struct *tty,
2099 		struct usb_serial_port *port, struct ktermios *old_termios)
2100 {
2101 	struct usb_device *dev = port->serial->dev;
2102 	struct device *ddev = &port->dev;
2103 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2104 	struct ktermios *termios = &tty->termios;
2105 	unsigned int cflag = termios->c_cflag;
2106 	__u16 urb_value; /* will hold the new flags */
2107 
2108 	/* Added for xon/xoff support */
2109 	unsigned int iflag = termios->c_iflag;
2110 	unsigned char vstop;
2111 	unsigned char vstart;
2112 
2113 	/* Force baud rate if this device requires it, unless it is set to
2114 	   B0. */
2115 	if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) {
2116 		dev_dbg(ddev, "%s: forcing baud rate for this device\n", __func__);
2117 		tty_encode_baud_rate(tty, priv->force_baud,
2118 					priv->force_baud);
2119 	}
2120 
2121 	/* Force RTS-CTS if this device requires it. */
2122 	if (priv->force_rtscts) {
2123 		dev_dbg(ddev, "%s: forcing rtscts for this device\n", __func__);
2124 		termios->c_cflag |= CRTSCTS;
2125 	}
2126 
2127 	/*
2128 	 * All FTDI UART chips are limited to CS7/8. We shouldn't pretend to
2129 	 * support CS5/6 and revert the CSIZE setting instead.
2130 	 *
2131 	 * CS5 however is used to control some smartcard readers which abuse
2132 	 * this limitation to switch modes. Original FTDI chips fall back to
2133 	 * eight data bits.
2134 	 *
2135 	 * TODO: Implement a quirk to only allow this with mentioned
2136 	 *       readers. One I know of (Argolis Smartreader V1)
2137 	 *       returns "USB smartcard server" as iInterface string.
2138 	 *       The vendor didn't bother with a custom VID/PID of
2139 	 *       course.
2140 	 */
2141 	if (C_CSIZE(tty) == CS6) {
2142 		dev_warn(ddev, "requested CSIZE setting not supported\n");
2143 
2144 		termios->c_cflag &= ~CSIZE;
2145 		if (old_termios)
2146 			termios->c_cflag |= old_termios->c_cflag & CSIZE;
2147 		else
2148 			termios->c_cflag |= CS8;
2149 	}
2150 
2151 	cflag = termios->c_cflag;
2152 
2153 	if (!old_termios)
2154 		goto no_skip;
2155 
2156 	if (old_termios->c_cflag == termios->c_cflag
2157 	    && old_termios->c_ispeed == termios->c_ispeed
2158 	    && old_termios->c_ospeed == termios->c_ospeed)
2159 		goto no_c_cflag_changes;
2160 
2161 	/* NOTE These routines can get interrupted by
2162 	   ftdi_sio_read_bulk_callback  - need to examine what this means -
2163 	   don't see any problems yet */
2164 
2165 	if ((old_termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)) ==
2166 	    (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)))
2167 		goto no_data_parity_stop_changes;
2168 
2169 no_skip:
2170 	/* Set number of data bits, parity, stop bits */
2171 
2172 	urb_value = 0;
2173 	urb_value |= (cflag & CSTOPB ? FTDI_SIO_SET_DATA_STOP_BITS_2 :
2174 		      FTDI_SIO_SET_DATA_STOP_BITS_1);
2175 	if (cflag & PARENB) {
2176 		if (cflag & CMSPAR)
2177 			urb_value |= cflag & PARODD ?
2178 				     FTDI_SIO_SET_DATA_PARITY_MARK :
2179 				     FTDI_SIO_SET_DATA_PARITY_SPACE;
2180 		else
2181 			urb_value |= cflag & PARODD ?
2182 				     FTDI_SIO_SET_DATA_PARITY_ODD :
2183 				     FTDI_SIO_SET_DATA_PARITY_EVEN;
2184 	} else {
2185 		urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE;
2186 	}
2187 	switch (cflag & CSIZE) {
2188 	case CS5:
2189 		dev_dbg(ddev, "Setting CS5 quirk\n");
2190 		break;
2191 	case CS7:
2192 		urb_value |= 7;
2193 		dev_dbg(ddev, "Setting CS7\n");
2194 		break;
2195 	default:
2196 	case CS8:
2197 		urb_value |= 8;
2198 		dev_dbg(ddev, "Setting CS8\n");
2199 		break;
2200 	}
2201 
2202 	/* This is needed by the break command since it uses the same command
2203 	   - but is or'ed with this value  */
2204 	priv->last_set_data_urb_value = urb_value;
2205 
2206 	if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2207 			    FTDI_SIO_SET_DATA_REQUEST,
2208 			    FTDI_SIO_SET_DATA_REQUEST_TYPE,
2209 			    urb_value , priv->interface,
2210 			    NULL, 0, WDR_SHORT_TIMEOUT) < 0) {
2211 		dev_err(ddev, "%s FAILED to set databits/stopbits/parity\n",
2212 			__func__);
2213 	}
2214 
2215 	/* Now do the baudrate */
2216 no_data_parity_stop_changes:
2217 	if ((cflag & CBAUD) == B0) {
2218 		/* Disable flow control */
2219 		if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
2220 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2221 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2222 				    0, priv->interface,
2223 				    NULL, 0, WDR_TIMEOUT) < 0) {
2224 			dev_err(ddev, "%s error from disable flowcontrol urb\n",
2225 				__func__);
2226 		}
2227 		/* Drop RTS and DTR */
2228 		clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2229 	} else {
2230 		/* set the baudrate determined before */
2231 		mutex_lock(&priv->cfg_lock);
2232 		if (change_speed(tty, port))
2233 			dev_err(ddev, "%s urb failed to set baudrate\n", __func__);
2234 		mutex_unlock(&priv->cfg_lock);
2235 		/* Ensure RTS and DTR are raised when baudrate changed from 0 */
2236 		if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
2237 			set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
2238 	}
2239 
2240 	/* Set flow control */
2241 	/* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */
2242 no_c_cflag_changes:
2243 	if (cflag & CRTSCTS) {
2244 		dev_dbg(ddev, "%s Setting to CRTSCTS flow control\n", __func__);
2245 		if (usb_control_msg(dev,
2246 				    usb_sndctrlpipe(dev, 0),
2247 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2248 				    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2249 				    0 , (FTDI_SIO_RTS_CTS_HS | priv->interface),
2250 				    NULL, 0, WDR_TIMEOUT) < 0) {
2251 			dev_err(ddev, "urb failed to set to rts/cts flow control\n");
2252 		}
2253 	} else {
2254 		/*
2255 		 * Xon/Xoff code
2256 		 *
2257 		 * Check the IXOFF status in the iflag component of the
2258 		 * termios structure. If IXOFF is not set, the pre-xon/xoff
2259 		 * code is executed.
2260 		 */
2261 		if (iflag & IXOFF) {
2262 			dev_dbg(ddev, "%s  request to enable xonxoff iflag=%04x\n",
2263 				__func__, iflag);
2264 			/* Try to enable the XON/XOFF on the ftdi_sio
2265 			 * Set the vstart and vstop -- could have been done up
2266 			 * above where a lot of other dereferencing is done but
2267 			 * that would be very inefficient as vstart and vstop
2268 			 * are not always needed.
2269 			 */
2270 			vstart = termios->c_cc[VSTART];
2271 			vstop = termios->c_cc[VSTOP];
2272 			urb_value = (vstop << 8) | (vstart);
2273 
2274 			if (usb_control_msg(dev,
2275 					    usb_sndctrlpipe(dev, 0),
2276 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2277 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2278 					    urb_value , (FTDI_SIO_XON_XOFF_HS
2279 							 | priv->interface),
2280 					    NULL, 0, WDR_TIMEOUT) < 0) {
2281 				dev_err(&port->dev, "urb failed to set to "
2282 					"xon/xoff flow control\n");
2283 			}
2284 		} else {
2285 			/* else clause to only run if cflag ! CRTSCTS and iflag
2286 			 * ! XOFF. CHECKME Assuming XON/XOFF handled by tty
2287 			 * stack - not by device */
2288 			dev_dbg(ddev, "%s Turning off hardware flow control\n", __func__);
2289 			if (usb_control_msg(dev,
2290 					    usb_sndctrlpipe(dev, 0),
2291 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST,
2292 					    FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE,
2293 					    0, priv->interface,
2294 					    NULL, 0, WDR_TIMEOUT) < 0) {
2295 				dev_err(ddev, "urb failed to clear flow control\n");
2296 			}
2297 		}
2298 	}
2299 }
2300 
2301 /*
2302  * Get modem-control status.
2303  *
2304  * Returns the number of status bytes retrieved (device dependant), or
2305  * negative error code.
2306  */
2307 static int ftdi_get_modem_status(struct usb_serial_port *port,
2308 						unsigned char status[2])
2309 {
2310 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2311 	unsigned char *buf;
2312 	int len;
2313 	int ret;
2314 
2315 	buf = kmalloc(2, GFP_KERNEL);
2316 	if (!buf)
2317 		return -ENOMEM;
2318 	/*
2319 	 * The 8U232AM returns a two byte value (the SIO a 1 byte value) in
2320 	 * the same format as the data returned from the in point.
2321 	 */
2322 	switch (priv->chip_type) {
2323 	case SIO:
2324 		len = 1;
2325 		break;
2326 	case FT8U232AM:
2327 	case FT232BM:
2328 	case FT2232C:
2329 	case FT232RL:
2330 	case FT2232H:
2331 	case FT4232H:
2332 	case FT232H:
2333 	case FTX:
2334 		len = 2;
2335 		break;
2336 	default:
2337 		ret = -EFAULT;
2338 		goto out;
2339 	}
2340 
2341 	ret = usb_control_msg(port->serial->dev,
2342 			usb_rcvctrlpipe(port->serial->dev, 0),
2343 			FTDI_SIO_GET_MODEM_STATUS_REQUEST,
2344 			FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE,
2345 			0, priv->interface,
2346 			buf, len, WDR_TIMEOUT);
2347 	if (ret < 0) {
2348 		dev_err(&port->dev, "failed to get modem status: %d\n", ret);
2349 		ret = usb_translate_errors(ret);
2350 		goto out;
2351 	}
2352 
2353 	status[0] = buf[0];
2354 	if (ret > 1)
2355 		status[1] = buf[1];
2356 	else
2357 		status[1] = 0;
2358 
2359 	dev_dbg(&port->dev, "%s - 0x%02x%02x\n", __func__, status[0],
2360 								status[1]);
2361 out:
2362 	kfree(buf);
2363 
2364 	return ret;
2365 }
2366 
2367 static int ftdi_tiocmget(struct tty_struct *tty)
2368 {
2369 	struct usb_serial_port *port = tty->driver_data;
2370 	struct ftdi_private *priv = usb_get_serial_port_data(port);
2371 	unsigned char buf[2];
2372 	int ret;
2373 
2374 	ret = ftdi_get_modem_status(port, buf);
2375 	if (ret < 0)
2376 		return ret;
2377 
2378 	ret =	(buf[0] & FTDI_SIO_DSR_MASK  ? TIOCM_DSR : 0) |
2379 		(buf[0] & FTDI_SIO_CTS_MASK  ? TIOCM_CTS : 0) |
2380 		(buf[0] & FTDI_SIO_RI_MASK   ? TIOCM_RI  : 0) |
2381 		(buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD  : 0) |
2382 		priv->last_dtr_rts;
2383 
2384 	return ret;
2385 }
2386 
2387 static int ftdi_tiocmset(struct tty_struct *tty,
2388 			unsigned int set, unsigned int clear)
2389 {
2390 	struct usb_serial_port *port = tty->driver_data;
2391 
2392 	return update_mctrl(port, set, clear);
2393 }
2394 
2395 static int ftdi_ioctl(struct tty_struct *tty,
2396 					unsigned int cmd, unsigned long arg)
2397 {
2398 	struct usb_serial_port *port = tty->driver_data;
2399 
2400 	/* Based on code from acm.c and others */
2401 	switch (cmd) {
2402 
2403 	case TIOCGSERIAL: /* gets serial port data */
2404 		return get_serial_info(port,
2405 					(struct serial_struct __user *) arg);
2406 
2407 	case TIOCSSERIAL: /* sets serial port data */
2408 		return set_serial_info(tty, port,
2409 					(struct serial_struct __user *) arg);
2410 	case TIOCSERGETLSR:
2411 		return get_lsr_info(port, (struct serial_struct __user *)arg);
2412 		break;
2413 	default:
2414 		break;
2415 	}
2416 
2417 	return -ENOIOCTLCMD;
2418 }
2419 
2420 module_usb_serial_driver(serial_drivers, id_table_combined);
2421 
2422 MODULE_AUTHOR(DRIVER_AUTHOR);
2423 MODULE_DESCRIPTION(DRIVER_DESC);
2424 MODULE_LICENSE("GPL");
2425 
2426 module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR);
2427 MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override");
2428