1 /* 2 * Qualcomm Serial USB driver 3 * 4 * Copyright (c) 2008 QUALCOMM Incorporated. 5 * Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de> 6 * Copyright (c) 2009 Novell Inc. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License version 10 * 2 as published by the Free Software Foundation. 11 * 12 */ 13 14 #include <linux/tty.h> 15 #include <linux/tty_flip.h> 16 #include <linux/module.h> 17 #include <linux/usb.h> 18 #include <linux/usb/serial.h> 19 #include <linux/slab.h> 20 #include "usb-wwan.h" 21 22 #define DRIVER_AUTHOR "Qualcomm Inc" 23 #define DRIVER_DESC "Qualcomm USB Serial driver" 24 25 #define QUECTEL_EC20_PID 0x9215 26 27 /* standard device layouts supported by this driver */ 28 enum qcserial_layouts { 29 QCSERIAL_G2K = 0, /* Gobi 2000 */ 30 QCSERIAL_G1K = 1, /* Gobi 1000 */ 31 QCSERIAL_SWI = 2, /* Sierra Wireless */ 32 QCSERIAL_HWI = 3, /* Huawei */ 33 }; 34 35 #define DEVICE_G1K(v, p) \ 36 USB_DEVICE(v, p), .driver_info = QCSERIAL_G1K 37 #define DEVICE_SWI(v, p) \ 38 USB_DEVICE(v, p), .driver_info = QCSERIAL_SWI 39 #define DEVICE_HWI(v, p) \ 40 USB_DEVICE(v, p), .driver_info = QCSERIAL_HWI 41 42 static const struct usb_device_id id_table[] = { 43 /* Gobi 1000 devices */ 44 {DEVICE_G1K(0x05c6, 0x9211)}, /* Acer Gobi QDL device */ 45 {DEVICE_G1K(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ 46 {DEVICE_G1K(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ 47 {DEVICE_G1K(0x03f0, 0x201d)}, /* HP un2400 Gobi QDL Device */ 48 {DEVICE_G1K(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ 49 {DEVICE_G1K(0x04da, 0x250c)}, /* Panasonic Gobi QDL device */ 50 {DEVICE_G1K(0x413c, 0x8172)}, /* Dell Gobi Modem device */ 51 {DEVICE_G1K(0x413c, 0x8171)}, /* Dell Gobi QDL device */ 52 {DEVICE_G1K(0x1410, 0xa001)}, /* Novatel/Verizon USB-1000 */ 53 {DEVICE_G1K(0x1410, 0xa002)}, /* Novatel Gobi Modem device */ 54 {DEVICE_G1K(0x1410, 0xa003)}, /* Novatel Gobi Modem device */ 55 {DEVICE_G1K(0x1410, 0xa004)}, /* Novatel Gobi Modem device */ 56 {DEVICE_G1K(0x1410, 0xa005)}, /* Novatel Gobi Modem device */ 57 {DEVICE_G1K(0x1410, 0xa006)}, /* Novatel Gobi Modem device */ 58 {DEVICE_G1K(0x1410, 0xa007)}, /* Novatel Gobi Modem device */ 59 {DEVICE_G1K(0x1410, 0xa008)}, /* Novatel Gobi QDL device */ 60 {DEVICE_G1K(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ 61 {DEVICE_G1K(0x0b05, 0x1774)}, /* Asus Gobi QDL device */ 62 {DEVICE_G1K(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ 63 {DEVICE_G1K(0x19d2, 0xfff2)}, /* ONDA Gobi QDL device */ 64 {DEVICE_G1K(0x1557, 0x0a80)}, /* OQO Gobi QDL device */ 65 {DEVICE_G1K(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ 66 {DEVICE_G1K(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ 67 {DEVICE_G1K(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ 68 {DEVICE_G1K(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ 69 {DEVICE_G1K(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ 70 {DEVICE_G1K(0x05c6, 0x9008)}, /* Generic Gobi QDL device */ 71 {DEVICE_G1K(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ 72 {DEVICE_G1K(0x05c6, 0x9201)}, /* Generic Gobi QDL device */ 73 {DEVICE_G1K(0x05c6, 0x9221)}, /* Generic Gobi QDL device */ 74 {DEVICE_G1K(0x05c6, 0x9231)}, /* Generic Gobi QDL device */ 75 {DEVICE_G1K(0x1f45, 0x0001)}, /* Unknown Gobi QDL device */ 76 {DEVICE_G1K(0x1bc7, 0x900e)}, /* Telit Gobi QDL device */ 77 78 /* Gobi 2000 devices */ 79 {USB_DEVICE(0x1410, 0xa010)}, /* Novatel Gobi 2000 QDL device */ 80 {USB_DEVICE(0x1410, 0xa011)}, /* Novatel Gobi 2000 QDL device */ 81 {USB_DEVICE(0x1410, 0xa012)}, /* Novatel Gobi 2000 QDL device */ 82 {USB_DEVICE(0x1410, 0xa013)}, /* Novatel Gobi 2000 QDL device */ 83 {USB_DEVICE(0x1410, 0xa014)}, /* Novatel Gobi 2000 QDL device */ 84 {USB_DEVICE(0x413c, 0x8185)}, /* Dell Gobi 2000 QDL device (N0218, VU936) */ 85 {USB_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ 86 {USB_DEVICE(0x05c6, 0x9208)}, /* Generic Gobi 2000 QDL device */ 87 {USB_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ 88 {USB_DEVICE(0x05c6, 0x9224)}, /* Sony Gobi 2000 QDL device (N0279, VU730) */ 89 {USB_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ 90 {USB_DEVICE(0x05c6, 0x9244)}, /* Samsung Gobi 2000 QDL device (VL176) */ 91 {USB_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ 92 {USB_DEVICE(0x03f0, 0x241d)}, /* HP Gobi 2000 QDL device (VP412) */ 93 {USB_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ 94 {USB_DEVICE(0x05c6, 0x9214)}, /* Acer Gobi 2000 QDL device (VP413) */ 95 {USB_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ 96 {USB_DEVICE(0x05c6, 0x9264)}, /* Asus Gobi 2000 QDL device (VR305) */ 97 {USB_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ 98 {USB_DEVICE(0x05c6, 0x9234)}, /* Top Global Gobi 2000 QDL device (VR306) */ 99 {USB_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ 100 {USB_DEVICE(0x05c6, 0x9274)}, /* iRex Technologies Gobi 2000 QDL device (VR307) */ 101 {USB_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ 102 {USB_DEVICE(0x1199, 0x9000)}, /* Sierra Wireless Gobi 2000 QDL device (VT773) */ 103 {USB_DEVICE(0x1199, 0x9001)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 104 {USB_DEVICE(0x1199, 0x9002)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 105 {USB_DEVICE(0x1199, 0x9003)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 106 {USB_DEVICE(0x1199, 0x9004)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 107 {USB_DEVICE(0x1199, 0x9005)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 108 {USB_DEVICE(0x1199, 0x9006)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 109 {USB_DEVICE(0x1199, 0x9007)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 110 {USB_DEVICE(0x1199, 0x9008)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 111 {USB_DEVICE(0x1199, 0x9009)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 112 {USB_DEVICE(0x1199, 0x900a)}, /* Sierra Wireless Gobi 2000 Modem device (VT773) */ 113 {USB_DEVICE(0x1199, 0x9011)}, /* Sierra Wireless Gobi 2000 Modem device (MC8305) */ 114 {USB_DEVICE(0x16d8, 0x8001)}, /* CMDTech Gobi 2000 QDL device (VU922) */ 115 {USB_DEVICE(0x16d8, 0x8002)}, /* CMDTech Gobi 2000 Modem device (VU922) */ 116 {USB_DEVICE(0x05c6, 0x9204)}, /* Gobi 2000 QDL device */ 117 {USB_DEVICE(0x05c6, 0x9205)}, /* Gobi 2000 Modem device */ 118 119 /* Gobi 3000 devices */ 120 {USB_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Gobi 3000 QDL */ 121 {USB_DEVICE(0x05c6, 0x920c)}, /* Gobi 3000 QDL */ 122 {USB_DEVICE(0x05c6, 0x920d)}, /* Gobi 3000 Composite */ 123 {USB_DEVICE(0x1410, 0xa020)}, /* Novatel Gobi 3000 QDL */ 124 {USB_DEVICE(0x1410, 0xa021)}, /* Novatel Gobi 3000 Composite */ 125 {USB_DEVICE(0x413c, 0x8193)}, /* Dell Gobi 3000 QDL */ 126 {USB_DEVICE(0x413c, 0x8194)}, /* Dell Gobi 3000 Composite */ 127 {USB_DEVICE(0x1199, 0x68a4)}, /* Sierra Wireless QDL */ 128 {USB_DEVICE(0x1199, 0x68a5)}, /* Sierra Wireless Modem */ 129 {USB_DEVICE(0x1199, 0x68a8)}, /* Sierra Wireless QDL */ 130 {USB_DEVICE(0x1199, 0x68a9)}, /* Sierra Wireless Modem */ 131 {USB_DEVICE(0x1199, 0x9010)}, /* Sierra Wireless Gobi 3000 QDL */ 132 {USB_DEVICE(0x1199, 0x9012)}, /* Sierra Wireless Gobi 3000 QDL */ 133 {USB_DEVICE(0x1199, 0x9013)}, /* Sierra Wireless Gobi 3000 Modem device (MC8355) */ 134 {USB_DEVICE(0x1199, 0x9014)}, /* Sierra Wireless Gobi 3000 QDL */ 135 {USB_DEVICE(0x1199, 0x9015)}, /* Sierra Wireless Gobi 3000 Modem device */ 136 {USB_DEVICE(0x1199, 0x9018)}, /* Sierra Wireless Gobi 3000 QDL */ 137 {USB_DEVICE(0x1199, 0x9019)}, /* Sierra Wireless Gobi 3000 Modem device */ 138 {USB_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ 139 {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */ 140 {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */ 141 {USB_DEVICE(0x0AF0, 0x8120)}, /* Option GTM681W */ 142 143 /* non-Gobi Sierra Wireless devices */ 144 {DEVICE_SWI(0x03f0, 0x4e1d)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ 145 {DEVICE_SWI(0x0f3d, 0x68a2)}, /* Sierra Wireless MC7700 */ 146 {DEVICE_SWI(0x114f, 0x68a2)}, /* Sierra Wireless MC7750 */ 147 {DEVICE_SWI(0x1199, 0x68a2)}, /* Sierra Wireless MC7710 */ 148 {DEVICE_SWI(0x1199, 0x68c0)}, /* Sierra Wireless MC7304/MC7354 */ 149 {DEVICE_SWI(0x1199, 0x901c)}, /* Sierra Wireless EM7700 */ 150 {DEVICE_SWI(0x1199, 0x901f)}, /* Sierra Wireless EM7355 */ 151 {DEVICE_SWI(0x1199, 0x9040)}, /* Sierra Wireless Modem */ 152 {DEVICE_SWI(0x1199, 0x9041)}, /* Sierra Wireless MC7305/MC7355 */ 153 {DEVICE_SWI(0x1199, 0x9051)}, /* Netgear AirCard 340U */ 154 {DEVICE_SWI(0x1199, 0x9053)}, /* Sierra Wireless Modem */ 155 {DEVICE_SWI(0x1199, 0x9054)}, /* Sierra Wireless Modem */ 156 {DEVICE_SWI(0x1199, 0x9055)}, /* Netgear AirCard 341U */ 157 {DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */ 158 {DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */ 159 {DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */ 160 {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */ 161 {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */ 162 {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */ 163 {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */ 164 {DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ 165 {DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ 166 {DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ 167 {DEVICE_SWI(0x413c, 0x81a8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */ 168 {DEVICE_SWI(0x413c, 0x81a9)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */ 169 {DEVICE_SWI(0x413c, 0x81b1)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */ 170 {DEVICE_SWI(0x413c, 0x81b3)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */ 171 172 /* Huawei devices */ 173 {DEVICE_HWI(0x03f0, 0x581d)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */ 174 175 { } /* Terminating entry */ 176 }; 177 MODULE_DEVICE_TABLE(usb, id_table); 178 179 static int handle_quectel_ec20(struct device *dev, int ifnum) 180 { 181 int altsetting = 0; 182 183 /* 184 * Quectel EC20 Mini PCIe LTE module layout: 185 * 0: DM/DIAG (use libqcdm from ModemManager for communication) 186 * 1: NMEA 187 * 2: AT-capable modem port 188 * 3: Modem interface 189 * 4: NDIS 190 */ 191 switch (ifnum) { 192 case 0: 193 dev_dbg(dev, "Quectel EC20 DM/DIAG interface found\n"); 194 break; 195 case 1: 196 dev_dbg(dev, "Quectel EC20 NMEA GPS interface found\n"); 197 break; 198 case 2: 199 case 3: 200 dev_dbg(dev, "Quectel EC20 Modem port found\n"); 201 break; 202 case 4: 203 /* Don't claim the QMI/net interface */ 204 altsetting = -1; 205 break; 206 } 207 208 return altsetting; 209 } 210 211 static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) 212 { 213 struct usb_host_interface *intf = serial->interface->cur_altsetting; 214 struct device *dev = &serial->dev->dev; 215 int retval = -ENODEV; 216 __u8 nintf; 217 __u8 ifnum; 218 int altsetting = -1; 219 bool sendsetup = false; 220 221 /* we only support vendor specific functions */ 222 if (intf->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC) 223 goto done; 224 225 nintf = serial->dev->actconfig->desc.bNumInterfaces; 226 dev_dbg(dev, "Num Interfaces = %d\n", nintf); 227 ifnum = intf->desc.bInterfaceNumber; 228 dev_dbg(dev, "This Interface = %d\n", ifnum); 229 230 if (nintf == 1) { 231 /* QDL mode */ 232 /* Gobi 2000 has a single altsetting, older ones have two */ 233 if (serial->interface->num_altsetting == 2) 234 intf = &serial->interface->altsetting[1]; 235 else if (serial->interface->num_altsetting > 2) 236 goto done; 237 238 if (intf->desc.bNumEndpoints == 2 && 239 usb_endpoint_is_bulk_in(&intf->endpoint[0].desc) && 240 usb_endpoint_is_bulk_out(&intf->endpoint[1].desc)) { 241 dev_dbg(dev, "QDL port found\n"); 242 243 if (serial->interface->num_altsetting == 1) 244 retval = 0; /* Success */ 245 else 246 altsetting = 1; 247 } 248 goto done; 249 250 } 251 252 /* default to enabling interface */ 253 altsetting = 0; 254 255 /* 256 * Composite mode; don't bind to the QMI/net interface as that 257 * gets handled by other drivers. 258 */ 259 260 switch (id->driver_info) { 261 case QCSERIAL_G1K: 262 /* 263 * Gobi 1K USB layout: 264 * 0: DM/DIAG (use libqcdm from ModemManager for communication) 265 * 1: serial port (doesn't respond) 266 * 2: AT-capable modem port 267 * 3: QMI/net 268 */ 269 if (nintf < 3 || nintf > 4) { 270 dev_err(dev, "unknown number of interfaces: %d\n", nintf); 271 altsetting = -1; 272 goto done; 273 } 274 275 if (ifnum == 0) { 276 dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n"); 277 altsetting = 1; 278 } else if (ifnum == 2) 279 dev_dbg(dev, "Modem port found\n"); 280 else 281 altsetting = -1; 282 break; 283 case QCSERIAL_G2K: 284 /* handle non-standard layouts */ 285 if (nintf == 5 && id->idProduct == QUECTEL_EC20_PID) { 286 altsetting = handle_quectel_ec20(dev, ifnum); 287 goto done; 288 } 289 290 /* 291 * Gobi 2K+ USB layout: 292 * 0: QMI/net 293 * 1: DM/DIAG (use libqcdm from ModemManager for communication) 294 * 2: AT-capable modem port 295 * 3: NMEA 296 */ 297 if (nintf < 3 || nintf > 4) { 298 dev_err(dev, "unknown number of interfaces: %d\n", nintf); 299 altsetting = -1; 300 goto done; 301 } 302 303 switch (ifnum) { 304 case 0: 305 /* Don't claim the QMI/net interface */ 306 altsetting = -1; 307 break; 308 case 1: 309 dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n"); 310 break; 311 case 2: 312 dev_dbg(dev, "Modem port found\n"); 313 break; 314 case 3: 315 /* 316 * NMEA (serial line 9600 8N1) 317 * # echo "\$GPS_START" > /dev/ttyUSBx 318 * # echo "\$GPS_STOP" > /dev/ttyUSBx 319 */ 320 dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n"); 321 break; 322 } 323 break; 324 case QCSERIAL_SWI: 325 /* 326 * Sierra Wireless layout: 327 * 0: DM/DIAG (use libqcdm from ModemManager for communication) 328 * 2: NMEA 329 * 3: AT-capable modem port 330 * 8: QMI/net 331 */ 332 switch (ifnum) { 333 case 0: 334 dev_dbg(dev, "DM/DIAG interface found\n"); 335 break; 336 case 2: 337 dev_dbg(dev, "NMEA GPS interface found\n"); 338 break; 339 case 3: 340 dev_dbg(dev, "Modem port found\n"); 341 sendsetup = true; 342 break; 343 default: 344 /* don't claim any unsupported interface */ 345 altsetting = -1; 346 break; 347 } 348 break; 349 case QCSERIAL_HWI: 350 /* 351 * Huawei devices map functions by subclass + protocol 352 * instead of interface numbers. The protocol identify 353 * a specific function, while the subclass indicate a 354 * specific firmware source 355 * 356 * This is a blacklist of functions known to be 357 * non-serial. The rest are assumed to be serial and 358 * will be handled by this driver 359 */ 360 switch (intf->desc.bInterfaceProtocol) { 361 /* QMI combined (qmi_wwan) */ 362 case 0x07: 363 case 0x37: 364 case 0x67: 365 /* QMI data (qmi_wwan) */ 366 case 0x08: 367 case 0x38: 368 case 0x68: 369 /* QMI control (qmi_wwan) */ 370 case 0x09: 371 case 0x39: 372 case 0x69: 373 /* NCM like (huawei_cdc_ncm) */ 374 case 0x16: 375 case 0x46: 376 case 0x76: 377 altsetting = -1; 378 break; 379 default: 380 dev_dbg(dev, "Huawei type serial port found (%02x/%02x/%02x)\n", 381 intf->desc.bInterfaceClass, 382 intf->desc.bInterfaceSubClass, 383 intf->desc.bInterfaceProtocol); 384 } 385 break; 386 default: 387 dev_err(dev, "unsupported device layout type: %lu\n", 388 id->driver_info); 389 break; 390 } 391 392 done: 393 if (altsetting >= 0) { 394 retval = usb_set_interface(serial->dev, ifnum, altsetting); 395 if (retval < 0) { 396 dev_err(dev, 397 "Could not set interface, error %d\n", 398 retval); 399 retval = -ENODEV; 400 } 401 } 402 403 if (!retval) 404 usb_set_serial_data(serial, (void *)(unsigned long)sendsetup); 405 406 return retval; 407 } 408 409 static int qc_attach(struct usb_serial *serial) 410 { 411 struct usb_wwan_intf_private *data; 412 bool sendsetup; 413 414 data = kzalloc(sizeof(*data), GFP_KERNEL); 415 if (!data) 416 return -ENOMEM; 417 418 sendsetup = !!(unsigned long)(usb_get_serial_data(serial)); 419 if (sendsetup) 420 data->use_send_setup = 1; 421 422 spin_lock_init(&data->susp_lock); 423 424 usb_set_serial_data(serial, data); 425 426 return 0; 427 } 428 429 static void qc_release(struct usb_serial *serial) 430 { 431 struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); 432 433 usb_set_serial_data(serial, NULL); 434 kfree(priv); 435 } 436 437 static struct usb_serial_driver qcdevice = { 438 .driver = { 439 .owner = THIS_MODULE, 440 .name = "qcserial", 441 }, 442 .description = "Qualcomm USB modem", 443 .id_table = id_table, 444 .num_ports = 1, 445 .probe = qcprobe, 446 .open = usb_wwan_open, 447 .close = usb_wwan_close, 448 .dtr_rts = usb_wwan_dtr_rts, 449 .write = usb_wwan_write, 450 .write_room = usb_wwan_write_room, 451 .chars_in_buffer = usb_wwan_chars_in_buffer, 452 .attach = qc_attach, 453 .release = qc_release, 454 .port_probe = usb_wwan_port_probe, 455 .port_remove = usb_wwan_port_remove, 456 #ifdef CONFIG_PM 457 .suspend = usb_wwan_suspend, 458 .resume = usb_wwan_resume, 459 #endif 460 }; 461 462 static struct usb_serial_driver * const serial_drivers[] = { 463 &qcdevice, NULL 464 }; 465 466 module_usb_serial_driver(serial_drivers, id_table); 467 468 MODULE_AUTHOR(DRIVER_AUTHOR); 469 MODULE_DESCRIPTION(DRIVER_DESC); 470 MODULE_LICENSE("GPL v2"); 471