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19#include <linux/slab.h>
20#include <linux/usb.h>
21#include <linux/usb/audio.h>
22#include <linux/module.h>
23#include <sound/core.h>
24#include <sound/hwdep.h>
25#include <sound/pcm.h>
26#include <sound/initval.h>
27#define MODNAME "US122L"
28#include "usb_stream.c"
29#include "../usbaudio.h"
30#include "../midi.h"
31#include "us122l.h"
32
33MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>");
34MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5");
35MODULE_LICENSE("GPL");
36
37static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
38static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
39
40static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
41
42module_param_array(index, int, NULL, 0444);
43MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
44module_param_array(id, charp, NULL, 0444);
45MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
46module_param_array(enable, bool, NULL, 0444);
47MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
48
49
50#define US122L_FLAG_US144 BIT(0)
51
52static int snd_us122l_card_used[SNDRV_CARDS];
53
54static int us122l_create_usbmidi(struct snd_card *card)
55{
56 static struct snd_usb_midi_endpoint_info quirk_data = {
57 .out_ep = 4,
58 .in_ep = 3,
59 .out_cables = 0x001,
60 .in_cables = 0x001
61 };
62 static struct snd_usb_audio_quirk quirk = {
63 .vendor_name = "US122L",
64 .product_name = NAME_ALLCAPS,
65 .ifnum = 1,
66 .type = QUIRK_MIDI_US122L,
67 .data = &quirk_data
68 };
69 struct usb_device *dev = US122L(card)->dev;
70 struct usb_interface *iface = usb_ifnum_to_if(dev, 1);
71
72 return snd_usbmidi_create(card, iface,
73 &US122L(card)->midi_list, &quirk);
74}
75
76static int us144_create_usbmidi(struct snd_card *card)
77{
78 static struct snd_usb_midi_endpoint_info quirk_data = {
79 .out_ep = 4,
80 .in_ep = 3,
81 .out_cables = 0x001,
82 .in_cables = 0x001
83 };
84 static struct snd_usb_audio_quirk quirk = {
85 .vendor_name = "US144",
86 .product_name = NAME_ALLCAPS,
87 .ifnum = 0,
88 .type = QUIRK_MIDI_US122L,
89 .data = &quirk_data
90 };
91 struct usb_device *dev = US122L(card)->dev;
92 struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
93
94 return snd_usbmidi_create(card, iface,
95 &US122L(card)->midi_list, &quirk);
96}
97
98
99
100
101
102static int us122l_ctl_msg(struct usb_device *dev, unsigned int pipe,
103 __u8 request, __u8 requesttype,
104 __u16 value, __u16 index, void *data,
105 __u16 size, int timeout)
106{
107 int err;
108 void *buf = NULL;
109
110 if (size > 0) {
111 buf = kmemdup(data, size, GFP_KERNEL);
112 if (!buf)
113 return -ENOMEM;
114 }
115 err = usb_control_msg(dev, pipe, request, requesttype,
116 value, index, buf, size, timeout);
117 if (size > 0) {
118 memcpy(data, buf, size);
119 kfree(buf);
120 }
121 return err;
122}
123
124static void pt_info_set(struct usb_device *dev, u8 v)
125{
126 int ret;
127
128 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
129 'I',
130 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
131 v, 0, NULL, 0, 1000);
132 snd_printdd(KERN_DEBUG "%i\n", ret);
133}
134
135static void usb_stream_hwdep_vm_open(struct vm_area_struct *area)
136{
137 struct us122l *us122l = area->vm_private_data;
138 atomic_inc(&us122l->mmap_count);
139 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count));
140}
141
142static int usb_stream_hwdep_vm_fault(struct vm_fault *vmf)
143{
144 unsigned long offset;
145 struct page *page;
146 void *vaddr;
147 struct us122l *us122l = vmf->vma->vm_private_data;
148 struct usb_stream *s;
149
150 mutex_lock(&us122l->mutex);
151 s = us122l->sk.s;
152 if (!s)
153 goto unlock;
154
155 offset = vmf->pgoff << PAGE_SHIFT;
156 if (offset < PAGE_ALIGN(s->read_size))
157 vaddr = (char *)s + offset;
158 else {
159 offset -= PAGE_ALIGN(s->read_size);
160 if (offset >= PAGE_ALIGN(s->write_size))
161 goto unlock;
162
163 vaddr = us122l->sk.write_page + offset;
164 }
165 page = virt_to_page(vaddr);
166
167 get_page(page);
168 mutex_unlock(&us122l->mutex);
169
170 vmf->page = page;
171
172 return 0;
173unlock:
174 mutex_unlock(&us122l->mutex);
175 return VM_FAULT_SIGBUS;
176}
177
178static void usb_stream_hwdep_vm_close(struct vm_area_struct *area)
179{
180 struct us122l *us122l = area->vm_private_data;
181 atomic_dec(&us122l->mmap_count);
182 snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count));
183}
184
185static const struct vm_operations_struct usb_stream_hwdep_vm_ops = {
186 .open = usb_stream_hwdep_vm_open,
187 .fault = usb_stream_hwdep_vm_fault,
188 .close = usb_stream_hwdep_vm_close,
189};
190
191
192static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file)
193{
194 struct us122l *us122l = hw->private_data;
195 struct usb_interface *iface;
196 snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
197 if (hw->used >= 2)
198 return -EBUSY;
199
200 if (!us122l->first)
201 us122l->first = file;
202
203 if (us122l->is_us144) {
204 iface = usb_ifnum_to_if(us122l->dev, 0);
205 usb_autopm_get_interface(iface);
206 }
207 iface = usb_ifnum_to_if(us122l->dev, 1);
208 usb_autopm_get_interface(iface);
209 return 0;
210}
211
212static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file)
213{
214 struct us122l *us122l = hw->private_data;
215 struct usb_interface *iface;
216 snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
217
218 if (us122l->is_us144) {
219 iface = usb_ifnum_to_if(us122l->dev, 0);
220 usb_autopm_put_interface(iface);
221 }
222 iface = usb_ifnum_to_if(us122l->dev, 1);
223 usb_autopm_put_interface(iface);
224 if (us122l->first == file)
225 us122l->first = NULL;
226 mutex_lock(&us122l->mutex);
227 if (us122l->master == file)
228 us122l->master = us122l->slave;
229
230 us122l->slave = NULL;
231 mutex_unlock(&us122l->mutex);
232 return 0;
233}
234
235static int usb_stream_hwdep_mmap(struct snd_hwdep *hw,
236 struct file *filp, struct vm_area_struct *area)
237{
238 unsigned long size = area->vm_end - area->vm_start;
239 struct us122l *us122l = hw->private_data;
240 unsigned long offset;
241 struct usb_stream *s;
242 int err = 0;
243 bool read;
244
245 offset = area->vm_pgoff << PAGE_SHIFT;
246 mutex_lock(&us122l->mutex);
247 s = us122l->sk.s;
248 read = offset < s->read_size;
249 if (read && area->vm_flags & VM_WRITE) {
250 err = -EPERM;
251 goto out;
252 }
253 snd_printdd(KERN_DEBUG "%lu %u\n", size,
254 read ? s->read_size : s->write_size);
255
256 if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) {
257 snd_printk(KERN_WARNING "%lu > %u\n", size,
258 read ? s->read_size : s->write_size);
259 err = -EINVAL;
260 goto out;
261 }
262
263 area->vm_ops = &usb_stream_hwdep_vm_ops;
264 area->vm_flags |= VM_DONTDUMP;
265 if (!read)
266 area->vm_flags |= VM_DONTEXPAND;
267 area->vm_private_data = us122l;
268 atomic_inc(&us122l->mmap_count);
269out:
270 mutex_unlock(&us122l->mutex);
271 return err;
272}
273
274static unsigned int usb_stream_hwdep_poll(struct snd_hwdep *hw,
275 struct file *file, poll_table *wait)
276{
277 struct us122l *us122l = hw->private_data;
278 unsigned *polled;
279 unsigned int mask;
280
281 poll_wait(file, &us122l->sk.sleep, wait);
282
283 mask = POLLIN | POLLOUT | POLLWRNORM | POLLERR;
284 if (mutex_trylock(&us122l->mutex)) {
285 struct usb_stream *s = us122l->sk.s;
286 if (s && s->state == usb_stream_ready) {
287 if (us122l->first == file)
288 polled = &s->periods_polled;
289 else
290 polled = &us122l->second_periods_polled;
291 if (*polled != s->periods_done) {
292 *polled = s->periods_done;
293 mask = POLLIN | POLLOUT | POLLWRNORM;
294 } else
295 mask = 0;
296 }
297 mutex_unlock(&us122l->mutex);
298 }
299 return mask;
300}
301
302static void us122l_stop(struct us122l *us122l)
303{
304 struct list_head *p;
305 list_for_each(p, &us122l->midi_list)
306 snd_usbmidi_input_stop(p);
307
308 usb_stream_stop(&us122l->sk);
309 usb_stream_free(&us122l->sk);
310}
311
312static int us122l_set_sample_rate(struct usb_device *dev, int rate)
313{
314 unsigned int ep = 0x81;
315 unsigned char data[3];
316 int err;
317
318 data[0] = rate;
319 data[1] = rate >> 8;
320 data[2] = rate >> 16;
321 err = us122l_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
322 USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT,
323 UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000);
324 if (err < 0)
325 snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n",
326 dev->devnum, rate, ep);
327 return err;
328}
329
330static bool us122l_start(struct us122l *us122l,
331 unsigned rate, unsigned period_frames)
332{
333 struct list_head *p;
334 int err;
335 unsigned use_packsize = 0;
336 bool success = false;
337
338 if (us122l->dev->speed == USB_SPEED_HIGH) {
339
340
341
342
343 switch (rate) {
344 case 44100:
345 use_packsize = 36;
346 break;
347 case 48000:
348 use_packsize = 42;
349 break;
350 case 88200:
351 use_packsize = 72;
352 break;
353 }
354 }
355 if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2,
356 rate, use_packsize, period_frames, 6))
357 goto out;
358
359 err = us122l_set_sample_rate(us122l->dev, rate);
360 if (err < 0) {
361 us122l_stop(us122l);
362 snd_printk(KERN_ERR "us122l_set_sample_rate error \n");
363 goto out;
364 }
365 err = usb_stream_start(&us122l->sk);
366 if (err < 0) {
367 us122l_stop(us122l);
368 snd_printk(KERN_ERR "us122l_start error %i \n", err);
369 goto out;
370 }
371 list_for_each(p, &us122l->midi_list)
372 snd_usbmidi_input_start(p);
373 success = true;
374out:
375 return success;
376}
377
378static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
379 unsigned cmd, unsigned long arg)
380{
381 struct usb_stream_config *cfg;
382 struct us122l *us122l = hw->private_data;
383 struct usb_stream *s;
384 unsigned min_period_frames;
385 int err = 0;
386 bool high_speed;
387
388 if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS)
389 return -ENOTTY;
390
391 cfg = memdup_user((void *)arg, sizeof(*cfg));
392 if (IS_ERR(cfg))
393 return PTR_ERR(cfg);
394
395 if (cfg->version != USB_STREAM_INTERFACE_VERSION) {
396 err = -ENXIO;
397 goto free;
398 }
399 high_speed = us122l->dev->speed == USB_SPEED_HIGH;
400 if ((cfg->sample_rate != 44100 && cfg->sample_rate != 48000 &&
401 (!high_speed ||
402 (cfg->sample_rate != 88200 && cfg->sample_rate != 96000))) ||
403 cfg->frame_size != 6 ||
404 cfg->period_frames > 0x3000) {
405 err = -EINVAL;
406 goto free;
407 }
408 switch (cfg->sample_rate) {
409 case 44100:
410 min_period_frames = 48;
411 break;
412 case 48000:
413 min_period_frames = 52;
414 break;
415 default:
416 min_period_frames = 104;
417 break;
418 }
419 if (!high_speed)
420 min_period_frames <<= 1;
421 if (cfg->period_frames < min_period_frames) {
422 err = -EINVAL;
423 goto free;
424 }
425
426 snd_power_wait(hw->card, SNDRV_CTL_POWER_D0);
427
428 mutex_lock(&us122l->mutex);
429 s = us122l->sk.s;
430 if (!us122l->master)
431 us122l->master = file;
432 else if (us122l->master != file) {
433 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg))) {
434 err = -EIO;
435 goto unlock;
436 }
437 us122l->slave = file;
438 }
439 if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg)) ||
440 s->state == usb_stream_xrun) {
441 us122l_stop(us122l);
442 if (!us122l_start(us122l, cfg->sample_rate, cfg->period_frames))
443 err = -EIO;
444 else
445 err = 1;
446 }
447unlock:
448 mutex_unlock(&us122l->mutex);
449free:
450 kfree(cfg);
451 wake_up_all(&us122l->sk.sleep);
452 return err;
453}
454
455#define SND_USB_STREAM_ID "USB STREAM"
456static int usb_stream_hwdep_new(struct snd_card *card)
457{
458 int err;
459 struct snd_hwdep *hw;
460 struct usb_device *dev = US122L(card)->dev;
461
462 err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw);
463 if (err < 0)
464 return err;
465
466 hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM;
467 hw->private_data = US122L(card);
468 hw->ops.open = usb_stream_hwdep_open;
469 hw->ops.release = usb_stream_hwdep_release;
470 hw->ops.ioctl = usb_stream_hwdep_ioctl;
471 hw->ops.ioctl_compat = usb_stream_hwdep_ioctl;
472 hw->ops.mmap = usb_stream_hwdep_mmap;
473 hw->ops.poll = usb_stream_hwdep_poll;
474
475 sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm",
476 dev->bus->busnum, dev->devnum);
477 return 0;
478}
479
480
481static bool us122l_create_card(struct snd_card *card)
482{
483 int err;
484 struct us122l *us122l = US122L(card);
485
486 if (us122l->is_us144) {
487 err = usb_set_interface(us122l->dev, 0, 1);
488 if (err) {
489 snd_printk(KERN_ERR "usb_set_interface error \n");
490 return false;
491 }
492 }
493 err = usb_set_interface(us122l->dev, 1, 1);
494 if (err) {
495 snd_printk(KERN_ERR "usb_set_interface error \n");
496 return false;
497 }
498
499 pt_info_set(us122l->dev, 0x11);
500 pt_info_set(us122l->dev, 0x10);
501
502 if (!us122l_start(us122l, 44100, 256))
503 return false;
504
505 if (us122l->is_us144)
506 err = us144_create_usbmidi(card);
507 else
508 err = us122l_create_usbmidi(card);
509 if (err < 0) {
510 snd_printk(KERN_ERR "us122l_create_usbmidi error %i \n", err);
511 us122l_stop(us122l);
512 return false;
513 }
514 err = usb_stream_hwdep_new(card);
515 if (err < 0) {
516
517 struct list_head *p;
518 list_for_each(p, &us122l->midi_list)
519 snd_usbmidi_disconnect(p);
520
521 us122l_stop(us122l);
522 return false;
523 }
524 return true;
525}
526
527static void snd_us122l_free(struct snd_card *card)
528{
529 struct us122l *us122l = US122L(card);
530 int index = us122l->card_index;
531 if (index >= 0 && index < SNDRV_CARDS)
532 snd_us122l_card_used[index] = 0;
533}
534
535static int usx2y_create_card(struct usb_device *device,
536 struct usb_interface *intf,
537 struct snd_card **cardp,
538 unsigned long flags)
539{
540 int dev;
541 struct snd_card *card;
542 int err;
543
544 for (dev = 0; dev < SNDRV_CARDS; ++dev)
545 if (enable[dev] && !snd_us122l_card_used[dev])
546 break;
547 if (dev >= SNDRV_CARDS)
548 return -ENODEV;
549 err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE,
550 sizeof(struct us122l), &card);
551 if (err < 0)
552 return err;
553 snd_us122l_card_used[US122L(card)->card_index = dev] = 1;
554 card->private_free = snd_us122l_free;
555 US122L(card)->dev = device;
556 mutex_init(&US122L(card)->mutex);
557 init_waitqueue_head(&US122L(card)->sk.sleep);
558 US122L(card)->is_us144 = flags & US122L_FLAG_US144;
559 INIT_LIST_HEAD(&US122L(card)->midi_list);
560 strcpy(card->driver, "USB "NAME_ALLCAPS"");
561 sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
562 sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
563 card->shortname,
564 le16_to_cpu(device->descriptor.idVendor),
565 le16_to_cpu(device->descriptor.idProduct),
566 0,
567 US122L(card)->dev->bus->busnum,
568 US122L(card)->dev->devnum
569 );
570 *cardp = card;
571 return 0;
572}
573
574static int us122l_usb_probe(struct usb_interface *intf,
575 const struct usb_device_id *device_id,
576 struct snd_card **cardp)
577{
578 struct usb_device *device = interface_to_usbdev(intf);
579 struct snd_card *card;
580 int err;
581
582 err = usx2y_create_card(device, intf, &card, device_id->driver_info);
583 if (err < 0)
584 return err;
585
586 if (!us122l_create_card(card)) {
587 snd_card_free(card);
588 return -EINVAL;
589 }
590
591 err = snd_card_register(card);
592 if (err < 0) {
593 snd_card_free(card);
594 return err;
595 }
596
597 usb_get_intf(usb_ifnum_to_if(device, 0));
598 usb_get_dev(device);
599 *cardp = card;
600 return 0;
601}
602
603static int snd_us122l_probe(struct usb_interface *intf,
604 const struct usb_device_id *id)
605{
606 struct usb_device *device = interface_to_usbdev(intf);
607 struct snd_card *card;
608 int err;
609
610 if (id->driver_info & US122L_FLAG_US144 &&
611 device->speed == USB_SPEED_HIGH) {
612 snd_printk(KERN_ERR "disable ehci-hcd to run US-144 \n");
613 return -ENODEV;
614 }
615
616 snd_printdd(KERN_DEBUG"%p:%i\n",
617 intf, intf->cur_altsetting->desc.bInterfaceNumber);
618 if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
619 return 0;
620
621 err = us122l_usb_probe(usb_get_intf(intf), id, &card);
622 if (err < 0) {
623 usb_put_intf(intf);
624 return err;
625 }
626
627 usb_set_intfdata(intf, card);
628 return 0;
629}
630
631static void snd_us122l_disconnect(struct usb_interface *intf)
632{
633 struct snd_card *card;
634 struct us122l *us122l;
635 struct list_head *p;
636
637 card = usb_get_intfdata(intf);
638 if (!card)
639 return;
640
641 snd_card_disconnect(card);
642
643 us122l = US122L(card);
644 mutex_lock(&us122l->mutex);
645 us122l_stop(us122l);
646 mutex_unlock(&us122l->mutex);
647
648
649 list_for_each(p, &us122l->midi_list) {
650 snd_usbmidi_disconnect(p);
651 }
652
653 usb_put_intf(usb_ifnum_to_if(us122l->dev, 0));
654 usb_put_intf(usb_ifnum_to_if(us122l->dev, 1));
655 usb_put_dev(us122l->dev);
656
657 while (atomic_read(&us122l->mmap_count))
658 msleep(500);
659
660 snd_card_free(card);
661}
662
663static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message)
664{
665 struct snd_card *card;
666 struct us122l *us122l;
667 struct list_head *p;
668
669 card = usb_get_intfdata(intf);
670 if (!card)
671 return 0;
672 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
673
674 us122l = US122L(card);
675 if (!us122l)
676 return 0;
677
678 list_for_each(p, &us122l->midi_list)
679 snd_usbmidi_input_stop(p);
680
681 mutex_lock(&us122l->mutex);
682 usb_stream_stop(&us122l->sk);
683 mutex_unlock(&us122l->mutex);
684
685 return 0;
686}
687
688static int snd_us122l_resume(struct usb_interface *intf)
689{
690 struct snd_card *card;
691 struct us122l *us122l;
692 struct list_head *p;
693 int err;
694
695 card = usb_get_intfdata(intf);
696 if (!card)
697 return 0;
698
699 us122l = US122L(card);
700 if (!us122l)
701 return 0;
702
703 mutex_lock(&us122l->mutex);
704
705 if (us122l->is_us144) {
706 err = usb_set_interface(us122l->dev, 0, 1);
707 if (err) {
708 snd_printk(KERN_ERR "usb_set_interface error \n");
709 goto unlock;
710 }
711 }
712 err = usb_set_interface(us122l->dev, 1, 1);
713 if (err) {
714 snd_printk(KERN_ERR "usb_set_interface error \n");
715 goto unlock;
716 }
717
718 pt_info_set(us122l->dev, 0x11);
719 pt_info_set(us122l->dev, 0x10);
720
721 err = us122l_set_sample_rate(us122l->dev,
722 us122l->sk.s->cfg.sample_rate);
723 if (err < 0) {
724 snd_printk(KERN_ERR "us122l_set_sample_rate error \n");
725 goto unlock;
726 }
727 err = usb_stream_start(&us122l->sk);
728 if (err)
729 goto unlock;
730
731 list_for_each(p, &us122l->midi_list)
732 snd_usbmidi_input_start(p);
733unlock:
734 mutex_unlock(&us122l->mutex);
735 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
736 return err;
737}
738
739static struct usb_device_id snd_us122l_usb_id_table[] = {
740 {
741 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
742 .idVendor = 0x0644,
743 .idProduct = USB_ID_US122L
744 },
745 {
746 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
747 .idVendor = 0x0644,
748 .idProduct = USB_ID_US144,
749 .driver_info = US122L_FLAG_US144
750 },
751 {
752 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
753 .idVendor = 0x0644,
754 .idProduct = USB_ID_US122MKII
755 },
756 {
757 .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
758 .idVendor = 0x0644,
759 .idProduct = USB_ID_US144MKII,
760 .driver_info = US122L_FLAG_US144
761 },
762 { }
763};
764
765MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table);
766static struct usb_driver snd_us122l_usb_driver = {
767 .name = "snd-usb-us122l",
768 .probe = snd_us122l_probe,
769 .disconnect = snd_us122l_disconnect,
770 .suspend = snd_us122l_suspend,
771 .resume = snd_us122l_resume,
772 .reset_resume = snd_us122l_resume,
773 .id_table = snd_us122l_usb_id_table,
774 .supports_autosuspend = 1
775};
776
777module_usb_driver(snd_us122l_usb_driver);
778
