xref: /openbmc/linux/drivers/usb/storage/jumpshot.c (revision 6d99a79c)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Driver for Lexar "Jumpshot" Compact Flash reader
4  *
5  * jumpshot driver v0.1:
6  *
7  * First release
8  *
9  * Current development and maintenance by:
10  *   (c) 2000 Jimmie Mayfield (mayfield+usb@sackheads.org)
11  *
12  *   Many thanks to Robert Baruch for the SanDisk SmartMedia reader driver
13  *   which I used as a template for this driver.
14  *
15  *   Some bugfixes and scatter-gather code by Gregory P. Smith
16  *   (greg-usb@electricrain.com)
17  *
18  *   Fix for media change by Joerg Schneider (js@joergschneider.com)
19  *
20  * Developed with the assistance of:
21  *
22  *   (C) 2002 Alan Stern <stern@rowland.org>
23  */
24 
25  /*
26   * This driver attempts to support the Lexar Jumpshot USB CompactFlash
27   * reader.  Like many other USB CompactFlash readers, the Jumpshot contains
28   * a USB-to-ATA chip.
29   *
30   * This driver supports reading and writing.  If you're truly paranoid,
31   * however, you can force the driver into a write-protected state by setting
32   * the WP enable bits in jumpshot_handle_mode_sense.  See the comments
33   * in that routine.
34   */
35 
36 #include <linux/errno.h>
37 #include <linux/module.h>
38 #include <linux/slab.h>
39 
40 #include <scsi/scsi.h>
41 #include <scsi/scsi_cmnd.h>
42 
43 #include "usb.h"
44 #include "transport.h"
45 #include "protocol.h"
46 #include "debug.h"
47 #include "scsiglue.h"
48 
49 #define DRV_NAME "ums-jumpshot"
50 
51 MODULE_DESCRIPTION("Driver for Lexar \"Jumpshot\" Compact Flash reader");
52 MODULE_AUTHOR("Jimmie Mayfield <mayfield+usb@sackheads.org>");
53 MODULE_LICENSE("GPL");
54 
55 /*
56  * The table of devices
57  */
58 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
59 		    vendorName, productName, useProtocol, useTransport, \
60 		    initFunction, flags) \
61 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
62   .driver_info = (flags) }
63 
64 static struct usb_device_id jumpshot_usb_ids[] = {
65 #	include "unusual_jumpshot.h"
66 	{ }		/* Terminating entry */
67 };
68 MODULE_DEVICE_TABLE(usb, jumpshot_usb_ids);
69 
70 #undef UNUSUAL_DEV
71 
72 /*
73  * The flags table
74  */
75 #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
76 		    vendor_name, product_name, use_protocol, use_transport, \
77 		    init_function, Flags) \
78 { \
79 	.vendorName = vendor_name,	\
80 	.productName = product_name,	\
81 	.useProtocol = use_protocol,	\
82 	.useTransport = use_transport,	\
83 	.initFunction = init_function,	\
84 }
85 
86 static struct us_unusual_dev jumpshot_unusual_dev_list[] = {
87 #	include "unusual_jumpshot.h"
88 	{ }		/* Terminating entry */
89 };
90 
91 #undef UNUSUAL_DEV
92 
93 
94 struct jumpshot_info {
95    unsigned long   sectors;     /* total sector count */
96    unsigned long   ssize;       /* sector size in bytes */
97 
98    /* the following aren't used yet */
99    unsigned char   sense_key;
100    unsigned long   sense_asc;   /* additional sense code */
101    unsigned long   sense_ascq;  /* additional sense code qualifier */
102 };
103 
104 static inline int jumpshot_bulk_read(struct us_data *us,
105 				     unsigned char *data,
106 				     unsigned int len)
107 {
108 	if (len == 0)
109 		return USB_STOR_XFER_GOOD;
110 
111 	usb_stor_dbg(us, "len = %d\n", len);
112 	return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
113 			data, len, NULL);
114 }
115 
116 
117 static inline int jumpshot_bulk_write(struct us_data *us,
118 				      unsigned char *data,
119 				      unsigned int len)
120 {
121 	if (len == 0)
122 		return USB_STOR_XFER_GOOD;
123 
124 	usb_stor_dbg(us, "len = %d\n", len);
125 	return usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
126 			data, len, NULL);
127 }
128 
129 
130 static int jumpshot_get_status(struct us_data  *us)
131 {
132 	int rc;
133 
134 	if (!us)
135 		return USB_STOR_TRANSPORT_ERROR;
136 
137 	// send the setup
138 	rc = usb_stor_ctrl_transfer(us, us->recv_ctrl_pipe,
139 				   0, 0xA0, 0, 7, us->iobuf, 1);
140 
141 	if (rc != USB_STOR_XFER_GOOD)
142 		return USB_STOR_TRANSPORT_ERROR;
143 
144 	if (us->iobuf[0] != 0x50) {
145 		usb_stor_dbg(us, "0x%2x\n", us->iobuf[0]);
146 		return USB_STOR_TRANSPORT_ERROR;
147 	}
148 
149 	return USB_STOR_TRANSPORT_GOOD;
150 }
151 
152 static int jumpshot_read_data(struct us_data *us,
153 			      struct jumpshot_info *info,
154 			      u32 sector,
155 			      u32 sectors)
156 {
157 	unsigned char *command = us->iobuf;
158 	unsigned char *buffer;
159 	unsigned char  thistime;
160 	unsigned int totallen, alloclen;
161 	int len, result;
162 	unsigned int sg_offset = 0;
163 	struct scatterlist *sg = NULL;
164 
165 	// we're working in LBA mode.  according to the ATA spec,
166 	// we can support up to 28-bit addressing.  I don't know if Jumpshot
167 	// supports beyond 24-bit addressing.  It's kind of hard to test
168 	// since it requires > 8GB CF card.
169 
170 	if (sector > 0x0FFFFFFF)
171 		return USB_STOR_TRANSPORT_ERROR;
172 
173 	totallen = sectors * info->ssize;
174 
175 	// Since we don't read more than 64 KB at a time, we have to create
176 	// a bounce buffer and move the data a piece at a time between the
177 	// bounce buffer and the actual transfer buffer.
178 
179 	alloclen = min(totallen, 65536u);
180 	buffer = kmalloc(alloclen, GFP_NOIO);
181 	if (buffer == NULL)
182 		return USB_STOR_TRANSPORT_ERROR;
183 
184 	do {
185 		// loop, never allocate or transfer more than 64k at once
186 		// (min(128k, 255*info->ssize) is the real limit)
187 		len = min(totallen, alloclen);
188 		thistime = (len / info->ssize) & 0xff;
189 
190 		command[0] = 0;
191 		command[1] = thistime;
192 		command[2] = sector & 0xFF;
193 		command[3] = (sector >>  8) & 0xFF;
194 		command[4] = (sector >> 16) & 0xFF;
195 
196 		command[5] = 0xE0 | ((sector >> 24) & 0x0F);
197 		command[6] = 0x20;
198 
199 		// send the setup + command
200 		result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe,
201 					       0, 0x20, 0, 1, command, 7);
202 		if (result != USB_STOR_XFER_GOOD)
203 			goto leave;
204 
205 		// read the result
206 		result = jumpshot_bulk_read(us, buffer, len);
207 		if (result != USB_STOR_XFER_GOOD)
208 			goto leave;
209 
210 		usb_stor_dbg(us, "%d bytes\n", len);
211 
212 		// Store the data in the transfer buffer
213 		usb_stor_access_xfer_buf(buffer, len, us->srb,
214 				 &sg, &sg_offset, TO_XFER_BUF);
215 
216 		sector += thistime;
217 		totallen -= len;
218 	} while (totallen > 0);
219 
220 	kfree(buffer);
221 	return USB_STOR_TRANSPORT_GOOD;
222 
223  leave:
224 	kfree(buffer);
225 	return USB_STOR_TRANSPORT_ERROR;
226 }
227 
228 
229 static int jumpshot_write_data(struct us_data *us,
230 			       struct jumpshot_info *info,
231 			       u32 sector,
232 			       u32 sectors)
233 {
234 	unsigned char *command = us->iobuf;
235 	unsigned char *buffer;
236 	unsigned char  thistime;
237 	unsigned int totallen, alloclen;
238 	int len, result, waitcount;
239 	unsigned int sg_offset = 0;
240 	struct scatterlist *sg = NULL;
241 
242 	// we're working in LBA mode.  according to the ATA spec,
243 	// we can support up to 28-bit addressing.  I don't know if Jumpshot
244 	// supports beyond 24-bit addressing.  It's kind of hard to test
245 	// since it requires > 8GB CF card.
246 	//
247 	if (sector > 0x0FFFFFFF)
248 		return USB_STOR_TRANSPORT_ERROR;
249 
250 	totallen = sectors * info->ssize;
251 
252 	// Since we don't write more than 64 KB at a time, we have to create
253 	// a bounce buffer and move the data a piece at a time between the
254 	// bounce buffer and the actual transfer buffer.
255 
256 	alloclen = min(totallen, 65536u);
257 	buffer = kmalloc(alloclen, GFP_NOIO);
258 	if (buffer == NULL)
259 		return USB_STOR_TRANSPORT_ERROR;
260 
261 	do {
262 		// loop, never allocate or transfer more than 64k at once
263 		// (min(128k, 255*info->ssize) is the real limit)
264 
265 		len = min(totallen, alloclen);
266 		thistime = (len / info->ssize) & 0xff;
267 
268 		// Get the data from the transfer buffer
269 		usb_stor_access_xfer_buf(buffer, len, us->srb,
270 				&sg, &sg_offset, FROM_XFER_BUF);
271 
272 		command[0] = 0;
273 		command[1] = thistime;
274 		command[2] = sector & 0xFF;
275 		command[3] = (sector >>  8) & 0xFF;
276 		command[4] = (sector >> 16) & 0xFF;
277 
278 		command[5] = 0xE0 | ((sector >> 24) & 0x0F);
279 		command[6] = 0x30;
280 
281 		// send the setup + command
282 		result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe,
283 			0, 0x20, 0, 1, command, 7);
284 		if (result != USB_STOR_XFER_GOOD)
285 			goto leave;
286 
287 		// send the data
288 		result = jumpshot_bulk_write(us, buffer, len);
289 		if (result != USB_STOR_XFER_GOOD)
290 			goto leave;
291 
292 		// read the result.  apparently the bulk write can complete
293 		// before the jumpshot drive is finished writing.  so we loop
294 		// here until we get a good return code
295 		waitcount = 0;
296 		do {
297 			result = jumpshot_get_status(us);
298 			if (result != USB_STOR_TRANSPORT_GOOD) {
299 				// I have not experimented to find the smallest value.
300 				//
301 				msleep(50);
302 			}
303 		} while ((result != USB_STOR_TRANSPORT_GOOD) && (waitcount < 10));
304 
305 		if (result != USB_STOR_TRANSPORT_GOOD)
306 			usb_stor_dbg(us, "Gah!  Waitcount = 10.  Bad write!?\n");
307 
308 		sector += thistime;
309 		totallen -= len;
310 	} while (totallen > 0);
311 
312 	kfree(buffer);
313 	return result;
314 
315  leave:
316 	kfree(buffer);
317 	return USB_STOR_TRANSPORT_ERROR;
318 }
319 
320 static int jumpshot_id_device(struct us_data *us,
321 			      struct jumpshot_info *info)
322 {
323 	unsigned char *command = us->iobuf;
324 	unsigned char *reply;
325 	int 	 rc;
326 
327 	if (!info)
328 		return USB_STOR_TRANSPORT_ERROR;
329 
330 	command[0] = 0xE0;
331 	command[1] = 0xEC;
332 	reply = kmalloc(512, GFP_NOIO);
333 	if (!reply)
334 		return USB_STOR_TRANSPORT_ERROR;
335 
336 	// send the setup
337 	rc = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe,
338 				   0, 0x20, 0, 6, command, 2);
339 
340 	if (rc != USB_STOR_XFER_GOOD) {
341 		usb_stor_dbg(us, "Gah! send_control for read_capacity failed\n");
342 		rc = USB_STOR_TRANSPORT_ERROR;
343 		goto leave;
344 	}
345 
346 	// read the reply
347 	rc = jumpshot_bulk_read(us, reply, 512);
348 	if (rc != USB_STOR_XFER_GOOD) {
349 		rc = USB_STOR_TRANSPORT_ERROR;
350 		goto leave;
351 	}
352 
353 	info->sectors = ((u32)(reply[117]) << 24) |
354 			((u32)(reply[116]) << 16) |
355 			((u32)(reply[115]) <<  8) |
356 			((u32)(reply[114])      );
357 
358 	rc = USB_STOR_TRANSPORT_GOOD;
359 
360  leave:
361 	kfree(reply);
362 	return rc;
363 }
364 
365 static int jumpshot_handle_mode_sense(struct us_data *us,
366 				      struct scsi_cmnd * srb,
367 				      int sense_6)
368 {
369 	static unsigned char rw_err_page[12] = {
370 		0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0
371 	};
372 	static unsigned char cache_page[12] = {
373 		0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0
374 	};
375 	static unsigned char rbac_page[12] = {
376 		0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0
377 	};
378 	static unsigned char timer_page[8] = {
379 		0x1C, 0x6, 0, 0, 0, 0
380 	};
381 	unsigned char pc, page_code;
382 	unsigned int i = 0;
383 	struct jumpshot_info *info = (struct jumpshot_info *) (us->extra);
384 	unsigned char *ptr = us->iobuf;
385 
386 	pc = srb->cmnd[2] >> 6;
387 	page_code = srb->cmnd[2] & 0x3F;
388 
389 	switch (pc) {
390 	   case 0x0:
391 		   usb_stor_dbg(us, "Current values\n");
392 		   break;
393 	   case 0x1:
394 		   usb_stor_dbg(us, "Changeable values\n");
395 		   break;
396 	   case 0x2:
397 		   usb_stor_dbg(us, "Default values\n");
398 		   break;
399 	   case 0x3:
400 		   usb_stor_dbg(us, "Saves values\n");
401 		   break;
402 	}
403 
404 	memset(ptr, 0, 8);
405 	if (sense_6) {
406 		ptr[2] = 0x00;		// WP enable: 0x80
407 		i = 4;
408 	} else {
409 		ptr[3] = 0x00;		// WP enable: 0x80
410 		i = 8;
411 	}
412 
413 	switch (page_code) {
414 	   case 0x0:
415 		// vendor-specific mode
416 		info->sense_key = 0x05;
417 		info->sense_asc = 0x24;
418 		info->sense_ascq = 0x00;
419 		return USB_STOR_TRANSPORT_FAILED;
420 
421 	   case 0x1:
422 		memcpy(ptr + i, rw_err_page, sizeof(rw_err_page));
423 		i += sizeof(rw_err_page);
424 		break;
425 
426 	   case 0x8:
427 		memcpy(ptr + i, cache_page, sizeof(cache_page));
428 		i += sizeof(cache_page);
429 		break;
430 
431 	   case 0x1B:
432 		memcpy(ptr + i, rbac_page, sizeof(rbac_page));
433 		i += sizeof(rbac_page);
434 		break;
435 
436 	   case 0x1C:
437 		memcpy(ptr + i, timer_page, sizeof(timer_page));
438 		i += sizeof(timer_page);
439 		break;
440 
441 	   case 0x3F:
442 		memcpy(ptr + i, timer_page, sizeof(timer_page));
443 		i += sizeof(timer_page);
444 		memcpy(ptr + i, rbac_page, sizeof(rbac_page));
445 		i += sizeof(rbac_page);
446 		memcpy(ptr + i, cache_page, sizeof(cache_page));
447 		i += sizeof(cache_page);
448 		memcpy(ptr + i, rw_err_page, sizeof(rw_err_page));
449 		i += sizeof(rw_err_page);
450 		break;
451 	}
452 
453 	if (sense_6)
454 		ptr[0] = i - 1;
455 	else
456 		((__be16 *) ptr)[0] = cpu_to_be16(i - 2);
457 	usb_stor_set_xfer_buf(ptr, i, srb);
458 
459 	return USB_STOR_TRANSPORT_GOOD;
460 }
461 
462 
463 static void jumpshot_info_destructor(void *extra)
464 {
465 	// this routine is a placeholder...
466 	// currently, we don't allocate any extra blocks so we're okay
467 }
468 
469 
470 
471 // Transport for the Lexar 'Jumpshot'
472 //
473 static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us)
474 {
475 	struct jumpshot_info *info;
476 	int rc;
477 	unsigned long block, blocks;
478 	unsigned char *ptr = us->iobuf;
479 	static unsigned char inquiry_response[8] = {
480 		0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00
481 	};
482 
483 	if (!us->extra) {
484 		us->extra = kzalloc(sizeof(struct jumpshot_info), GFP_NOIO);
485 		if (!us->extra)
486 			return USB_STOR_TRANSPORT_ERROR;
487 
488 		us->extra_destructor = jumpshot_info_destructor;
489 	}
490 
491 	info = (struct jumpshot_info *) (us->extra);
492 
493 	if (srb->cmnd[0] == INQUIRY) {
494 		usb_stor_dbg(us, "INQUIRY - Returning bogus response\n");
495 		memcpy(ptr, inquiry_response, sizeof(inquiry_response));
496 		fill_inquiry_response(us, ptr, 36);
497 		return USB_STOR_TRANSPORT_GOOD;
498 	}
499 
500 	if (srb->cmnd[0] == READ_CAPACITY) {
501 		info->ssize = 0x200;  // hard coded 512 byte sectors as per ATA spec
502 
503 		rc = jumpshot_get_status(us);
504 		if (rc != USB_STOR_TRANSPORT_GOOD)
505 			return rc;
506 
507 		rc = jumpshot_id_device(us, info);
508 		if (rc != USB_STOR_TRANSPORT_GOOD)
509 			return rc;
510 
511 		usb_stor_dbg(us, "READ_CAPACITY:  %ld sectors, %ld bytes per sector\n",
512 			     info->sectors, info->ssize);
513 
514 		// build the reply
515 		//
516 		((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1);
517 		((__be32 *) ptr)[1] = cpu_to_be32(info->ssize);
518 		usb_stor_set_xfer_buf(ptr, 8, srb);
519 
520 		return USB_STOR_TRANSPORT_GOOD;
521 	}
522 
523 	if (srb->cmnd[0] == MODE_SELECT_10) {
524 		usb_stor_dbg(us, "Gah! MODE_SELECT_10\n");
525 		return USB_STOR_TRANSPORT_ERROR;
526 	}
527 
528 	if (srb->cmnd[0] == READ_10) {
529 		block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) |
530 			((u32)(srb->cmnd[4]) <<  8) | ((u32)(srb->cmnd[5]));
531 
532 		blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8]));
533 
534 		usb_stor_dbg(us, "READ_10: read block 0x%04lx  count %ld\n",
535 			     block, blocks);
536 		return jumpshot_read_data(us, info, block, blocks);
537 	}
538 
539 	if (srb->cmnd[0] == READ_12) {
540 		// I don't think we'll ever see a READ_12 but support it anyway...
541 		//
542 		block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) |
543 			((u32)(srb->cmnd[4]) <<  8) | ((u32)(srb->cmnd[5]));
544 
545 		blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) |
546 			 ((u32)(srb->cmnd[8]) <<  8) | ((u32)(srb->cmnd[9]));
547 
548 		usb_stor_dbg(us, "READ_12: read block 0x%04lx  count %ld\n",
549 			     block, blocks);
550 		return jumpshot_read_data(us, info, block, blocks);
551 	}
552 
553 	if (srb->cmnd[0] == WRITE_10) {
554 		block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) |
555 			((u32)(srb->cmnd[4]) <<  8) | ((u32)(srb->cmnd[5]));
556 
557 		blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8]));
558 
559 		usb_stor_dbg(us, "WRITE_10: write block 0x%04lx  count %ld\n",
560 			     block, blocks);
561 		return jumpshot_write_data(us, info, block, blocks);
562 	}
563 
564 	if (srb->cmnd[0] == WRITE_12) {
565 		// I don't think we'll ever see a WRITE_12 but support it anyway...
566 		//
567 		block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) |
568 			((u32)(srb->cmnd[4]) <<  8) | ((u32)(srb->cmnd[5]));
569 
570 		blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) |
571 			 ((u32)(srb->cmnd[8]) <<  8) | ((u32)(srb->cmnd[9]));
572 
573 		usb_stor_dbg(us, "WRITE_12: write block 0x%04lx  count %ld\n",
574 			     block, blocks);
575 		return jumpshot_write_data(us, info, block, blocks);
576 	}
577 
578 
579 	if (srb->cmnd[0] == TEST_UNIT_READY) {
580 		usb_stor_dbg(us, "TEST_UNIT_READY\n");
581 		return jumpshot_get_status(us);
582 	}
583 
584 	if (srb->cmnd[0] == REQUEST_SENSE) {
585 		usb_stor_dbg(us, "REQUEST_SENSE\n");
586 
587 		memset(ptr, 0, 18);
588 		ptr[0] = 0xF0;
589 		ptr[2] = info->sense_key;
590 		ptr[7] = 11;
591 		ptr[12] = info->sense_asc;
592 		ptr[13] = info->sense_ascq;
593 		usb_stor_set_xfer_buf(ptr, 18, srb);
594 
595 		return USB_STOR_TRANSPORT_GOOD;
596 	}
597 
598 	if (srb->cmnd[0] == MODE_SENSE) {
599 		usb_stor_dbg(us, "MODE_SENSE_6 detected\n");
600 		return jumpshot_handle_mode_sense(us, srb, 1);
601 	}
602 
603 	if (srb->cmnd[0] == MODE_SENSE_10) {
604 		usb_stor_dbg(us, "MODE_SENSE_10 detected\n");
605 		return jumpshot_handle_mode_sense(us, srb, 0);
606 	}
607 
608 	if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) {
609 		/*
610 		 * sure.  whatever.  not like we can stop the user from popping
611 		 * the media out of the device (no locking doors, etc)
612 		 */
613 		return USB_STOR_TRANSPORT_GOOD;
614 	}
615 
616 	if (srb->cmnd[0] == START_STOP) {
617 		/*
618 		 * this is used by sd.c'check_scsidisk_media_change to detect
619 		 * media change
620 		 */
621 		usb_stor_dbg(us, "START_STOP\n");
622 		/*
623 		 * the first jumpshot_id_device after a media change returns
624 		 * an error (determined experimentally)
625 		 */
626 		rc = jumpshot_id_device(us, info);
627 		if (rc == USB_STOR_TRANSPORT_GOOD) {
628 			info->sense_key = NO_SENSE;
629 			srb->result = SUCCESS;
630 		} else {
631 			info->sense_key = UNIT_ATTENTION;
632 			srb->result = SAM_STAT_CHECK_CONDITION;
633 		}
634 		return rc;
635 	}
636 
637 	usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n",
638 		     srb->cmnd[0], srb->cmnd[0]);
639 	info->sense_key = 0x05;
640 	info->sense_asc = 0x20;
641 	info->sense_ascq = 0x00;
642 	return USB_STOR_TRANSPORT_FAILED;
643 }
644 
645 static struct scsi_host_template jumpshot_host_template;
646 
647 static int jumpshot_probe(struct usb_interface *intf,
648 			 const struct usb_device_id *id)
649 {
650 	struct us_data *us;
651 	int result;
652 
653 	result = usb_stor_probe1(&us, intf, id,
654 			(id - jumpshot_usb_ids) + jumpshot_unusual_dev_list,
655 			&jumpshot_host_template);
656 	if (result)
657 		return result;
658 
659 	us->transport_name  = "Lexar Jumpshot Control/Bulk";
660 	us->transport = jumpshot_transport;
661 	us->transport_reset = usb_stor_Bulk_reset;
662 	us->max_lun = 1;
663 
664 	result = usb_stor_probe2(us);
665 	return result;
666 }
667 
668 static struct usb_driver jumpshot_driver = {
669 	.name =		DRV_NAME,
670 	.probe =	jumpshot_probe,
671 	.disconnect =	usb_stor_disconnect,
672 	.suspend =	usb_stor_suspend,
673 	.resume =	usb_stor_resume,
674 	.reset_resume =	usb_stor_reset_resume,
675 	.pre_reset =	usb_stor_pre_reset,
676 	.post_reset =	usb_stor_post_reset,
677 	.id_table =	jumpshot_usb_ids,
678 	.soft_unbind =	1,
679 	.no_dynamic_id = 1,
680 };
681 
682 module_usb_stor_driver(jumpshot_driver, jumpshot_host_template, DRV_NAME);
683