Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * usbusy2y.c - ALSA USB US-428 Driver | |
3 | * | |
230cd5e2 KW |
4 | 2005-04-14 Karsten Wiese |
5 | Version 0.8.7.2: | |
6 | Call snd_card_free() instead of snd_card_free_in_thread() to prevent oops with dead keyboard symptom. | |
7 | Tested ok with kernel 2.6.12-rc2. | |
8 | ||
1da177e4 LT |
9 | 2004-12-14 Karsten Wiese |
10 | Version 0.8.7.1: | |
11 | snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open. | |
12 | ||
13 | 2004-12-02 Karsten Wiese | |
14 | Version 0.8.7: | |
15 | Use macro usb_maxpacket() for portability. | |
16 | ||
17 | 2004-10-26 Karsten Wiese | |
18 | Version 0.8.6: | |
19 | wake_up() process waiting in usX2Y_urbs_start() on error. | |
20 | ||
21 | 2004-10-21 Karsten Wiese | |
22 | Version 0.8.5: | |
23 | nrpacks is runtime or compiletime configurable now with tested values from 1 to 4. | |
24 | ||
25 | 2004-10-03 Karsten Wiese | |
26 | Version 0.8.2: | |
27 | Avoid any possible racing while in prepare callback. | |
28 | ||
29 | 2004-09-30 Karsten Wiese | |
30 | Version 0.8.0: | |
31 | Simplified things and made ohci work again. | |
32 | ||
33 | 2004-09-20 Karsten Wiese | |
34 | Version 0.7.3: | |
35 | Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb(). | |
36 | ||
37 | 2004-07-13 Karsten Wiese | |
38 | Version 0.7.1: | |
39 | Don't sleep in START/STOP callbacks anymore. | |
40 | us428 channels C/D not handled just for this version, sorry. | |
41 | ||
42 | 2004-06-21 Karsten Wiese | |
43 | Version 0.6.4: | |
44 | Temporarely suspend midi input | |
45 | to sanely call usb_set_interface() when setting format. | |
46 | ||
47 | 2004-06-12 Karsten Wiese | |
48 | Version 0.6.3: | |
49 | Made it thus the following rule is enforced: | |
50 | "All pcm substreams of one usX2Y have to operate at the same rate & format." | |
51 | ||
52 | 2004-04-06 Karsten Wiese | |
53 | Version 0.6.0: | |
54 | Runs on 2.6.5 kernel without any "--with-debug=" things. | |
55 | us224 reported running. | |
56 | ||
57 | 2004-01-14 Karsten Wiese | |
58 | Version 0.5.1: | |
59 | Runs with 2.6.1 kernel. | |
60 | ||
61 | 2003-12-30 Karsten Wiese | |
62 | Version 0.4.1: | |
63 | Fix 24Bit 4Channel capturing for the us428. | |
64 | ||
65 | 2003-11-27 Karsten Wiese, Martin Langer | |
66 | Version 0.4: | |
67 | us122 support. | |
68 | us224 could be tested by uncommenting the sections containing USB_ID_US224 | |
69 | ||
70 | 2003-11-03 Karsten Wiese | |
71 | Version 0.3: | |
72 | 24Bit support. | |
73 | "arecord -D hw:1 -c 2 -r 48000 -M -f S24_3LE|aplay -D hw:1 -c 2 -r 48000 -M -f S24_3LE" works. | |
74 | ||
75 | 2003-08-22 Karsten Wiese | |
76 | Version 0.0.8: | |
77 | Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader. | |
78 | See: | |
79 | http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz | |
80 | ||
81 | 2003-06-18 Karsten Wiese | |
82 | Version 0.0.5: | |
83 | changed to compile with kernel 2.4.21 and alsa 0.9.4 | |
84 | ||
85 | 2002-10-16 Karsten Wiese | |
86 | Version 0.0.4: | |
87 | compiles again with alsa-current. | |
88 | USB_ISO_ASAP not used anymore (most of the time), instead | |
89 | urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore. | |
90 | ||
91 | To get the best out of this: | |
92 | Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds. | |
93 | This helped me much on my slowish PII 400 & PIII 500. | |
94 | ACPI yet untested but might cause the same bad behaviour. | |
95 | Use a kernel with lowlatency and preemptiv patches applied. | |
96 | To autoload snd-usb-midi append a line | |
97 | post-install snd-usb-us428 modprobe snd-usb-midi | |
98 | to /etc/modules.conf. | |
99 | ||
100 | known problems: | |
101 | sliders, knobs, lights not yet handled except MASTER Volume slider. | |
102 | "pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does. | |
103 | KDE3: "Enable full duplex operation" deadlocks. | |
104 | ||
105 | ||
106 | 2002-08-31 Karsten Wiese | |
107 | Version 0.0.3: audio also simplex; | |
108 | simplifying: iso urbs only 1 packet, melted structs. | |
109 | ASYNC_UNLINK not used anymore: no more crashes so far..... | |
110 | for alsa 0.9 rc3. | |
111 | ||
112 | 2002-08-09 Karsten Wiese | |
113 | Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol. | |
114 | The firmware has been sniffed from win2k us-428 driver 3.09. | |
115 | ||
116 | * Copyright (c) 2002 - 2004 Karsten Wiese | |
117 | * | |
118 | * This program is free software; you can redistribute it and/or modify | |
119 | * it under the terms of the GNU General Public License as published by | |
120 | * the Free Software Foundation; either version 2 of the License, or | |
121 | * (at your option) any later version. | |
122 | * | |
123 | * This program is distributed in the hope that it will be useful, | |
124 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
125 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
126 | * GNU General Public License for more details. | |
127 | * | |
128 | * You should have received a copy of the GNU General Public License | |
129 | * along with this program; if not, write to the Free Software | |
130 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
131 | */ | |
132 | ||
1da177e4 LT |
133 | #include <linux/init.h> |
134 | #include <linux/module.h> | |
135 | #include <linux/moduleparam.h> | |
5a0e3ad6 | 136 | #include <linux/slab.h> |
1da177e4 LT |
137 | #include <linux/interrupt.h> |
138 | #include <linux/usb.h> | |
139 | #include <sound/core.h> | |
140 | #include <sound/initval.h> | |
141 | #include <sound/pcm.h> | |
142 | ||
143 | #include <sound/rawmidi.h> | |
144 | #include "usx2y.h" | |
145 | #include "usbusx2y.h" | |
146 | #include "usX2Yhwdep.h" | |
147 | ||
148 | ||
149 | ||
150 | MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>"); | |
230cd5e2 | 151 | MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.2"); |
1da177e4 LT |
152 | MODULE_LICENSE("GPL"); |
153 | MODULE_SUPPORTED_DEVICE("{{TASCAM(0x1604), "NAME_ALLCAPS"(0x8001)(0x8005)(0x8007) }}"); | |
154 | ||
155 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ | |
156 | static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ | |
157 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ | |
158 | ||
159 | module_param_array(index, int, NULL, 0444); | |
160 | MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS"."); | |
161 | module_param_array(id, charp, NULL, 0444); | |
162 | MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS"."); | |
163 | module_param_array(enable, bool, NULL, 0444); | |
164 | MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS"."); | |
165 | ||
166 | ||
167 | static int snd_usX2Y_card_used[SNDRV_CARDS]; | |
168 | ||
169 | static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr); | |
bbe85bbd | 170 | static void snd_usX2Y_card_private_free(struct snd_card *card); |
1da177e4 LT |
171 | |
172 | /* | |
173 | * pipe 4 is used for switching the lamps, setting samplerate, volumes .... | |
174 | */ | |
7d12e780 | 175 | static void i_usX2Y_Out04Int(struct urb *urb) |
1da177e4 LT |
176 | { |
177 | #ifdef CONFIG_SND_DEBUG | |
178 | if (urb->status) { | |
179 | int i; | |
bbe85bbd | 180 | struct usX2Ydev *usX2Y = urb->context; |
1da177e4 LT |
181 | for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++); |
182 | snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status); | |
183 | } | |
184 | #endif | |
185 | } | |
186 | ||
7d12e780 | 187 | static void i_usX2Y_In04Int(struct urb *urb) |
1da177e4 LT |
188 | { |
189 | int err = 0; | |
bbe85bbd TI |
190 | struct usX2Ydev *usX2Y = urb->context; |
191 | struct us428ctls_sharedmem *us428ctls = usX2Y->us428ctls_sharedmem; | |
1da177e4 LT |
192 | |
193 | usX2Y->In04IntCalls++; | |
194 | ||
195 | if (urb->status) { | |
196 | snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status); | |
197 | return; | |
198 | } | |
199 | ||
200 | // printk("%i:0x%02X ", 8, (int)((unsigned char*)usX2Y->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!? | |
201 | if (us428ctls) { | |
202 | int diff = -1; | |
203 | if (-2 == us428ctls->CtlSnapShotLast) { | |
204 | diff = 0; | |
205 | memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last)); | |
206 | us428ctls->CtlSnapShotLast = -1; | |
207 | } else { | |
208 | int i; | |
209 | for (i = 0; i < 21; i++) { | |
210 | if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) { | |
211 | if (diff < 0) | |
212 | diff = i; | |
213 | usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i]; | |
214 | } | |
215 | } | |
216 | } | |
217 | if (0 <= diff) { | |
218 | int n = us428ctls->CtlSnapShotLast + 1; | |
219 | if (n >= N_us428_ctl_BUFS || n < 0) | |
220 | n = 0; | |
221 | memcpy(us428ctls->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0])); | |
222 | us428ctls->CtlSnapShotDiffersAt[n] = diff; | |
223 | us428ctls->CtlSnapShotLast = n; | |
224 | wake_up(&usX2Y->us428ctls_wait_queue_head); | |
225 | } | |
226 | } | |
227 | ||
228 | ||
229 | if (usX2Y->US04) { | |
230 | if (0 == usX2Y->US04->submitted) | |
3a755ec2 | 231 | do { |
1da177e4 | 232 | err = usb_submit_urb(usX2Y->US04->urb[usX2Y->US04->submitted++], GFP_ATOMIC); |
3a755ec2 | 233 | } while (!err && usX2Y->US04->submitted < usX2Y->US04->len); |
1da177e4 LT |
234 | } else |
235 | if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) { | |
236 | if (us428ctls->p4outLast != us428ctls->p4outSent) { | |
237 | int j, send = us428ctls->p4outSent + 1; | |
238 | if (send >= N_us428_p4out_BUFS) | |
239 | send = 0; | |
240 | for (j = 0; j < URBS_AsyncSeq && !err; ++j) | |
241 | if (0 == usX2Y->AS04.urb[j]->status) { | |
025dfdaf | 242 | struct us428_p4out *p4out = us428ctls->p4out + send; // FIXME if more than 1 p4out is new, 1 gets lost. |
a014bbad CL |
243 | usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->dev, |
244 | usb_sndbulkpipe(usX2Y->dev, 0x04), &p4out->val.vol, | |
bbe85bbd | 245 | p4out->type == eLT_Light ? sizeof(struct us428_lights) : 5, |
1da177e4 LT |
246 | i_usX2Y_Out04Int, usX2Y); |
247 | err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC); | |
248 | us428ctls->p4outSent = send; | |
249 | break; | |
250 | } | |
251 | } | |
252 | } | |
253 | ||
d3d579f8 TI |
254 | if (err) |
255 | snd_printk(KERN_ERR "In04Int() usb_submit_urb err=%i\n", err); | |
1da177e4 | 256 | |
a014bbad | 257 | urb->dev = usX2Y->dev; |
1da177e4 LT |
258 | usb_submit_urb(urb, GFP_ATOMIC); |
259 | } | |
260 | ||
261 | /* | |
262 | * Prepare some urbs | |
263 | */ | |
bbe85bbd | 264 | int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y) |
1da177e4 LT |
265 | { |
266 | int err = 0, | |
267 | i; | |
268 | ||
269 | if (NULL == (usX2Y->AS04.buffer = kmalloc(URB_DataLen_AsyncSeq*URBS_AsyncSeq, GFP_KERNEL))) { | |
270 | err = -ENOMEM; | |
271 | } else | |
272 | for (i = 0; i < URBS_AsyncSeq; ++i) { | |
273 | if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) { | |
274 | err = -ENOMEM; | |
275 | break; | |
276 | } | |
a014bbad CL |
277 | usb_fill_bulk_urb( usX2Y->AS04.urb[i], usX2Y->dev, |
278 | usb_sndbulkpipe(usX2Y->dev, 0x04), | |
1da177e4 LT |
279 | usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0, |
280 | i_usX2Y_Out04Int, usX2Y | |
281 | ); | |
282 | } | |
283 | return err; | |
284 | } | |
285 | ||
bbe85bbd | 286 | int usX2Y_In04_init(struct usX2Ydev *usX2Y) |
1da177e4 | 287 | { |
1da177e4 LT |
288 | if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL))) |
289 | return -ENOMEM; | |
290 | ||
291 | if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) { | |
292 | usb_free_urb(usX2Y->In04urb); | |
293 | return -ENOMEM; | |
294 | } | |
295 | ||
296 | init_waitqueue_head(&usX2Y->In04WaitQueue); | |
a014bbad | 297 | usb_fill_int_urb(usX2Y->In04urb, usX2Y->dev, usb_rcvintpipe(usX2Y->dev, 0x4), |
1da177e4 LT |
298 | usX2Y->In04Buf, 21, |
299 | i_usX2Y_In04Int, usX2Y, | |
300 | 10); | |
cb432379 | 301 | return usb_submit_urb(usX2Y->In04urb, GFP_KERNEL); |
1da177e4 LT |
302 | } |
303 | ||
bbe85bbd | 304 | static void usX2Y_unlinkSeq(struct snd_usX2Y_AsyncSeq *S) |
1da177e4 LT |
305 | { |
306 | int i; | |
307 | for (i = 0; i < URBS_AsyncSeq; ++i) { | |
308 | if (S[i].urb) { | |
309 | usb_kill_urb(S->urb[i]); | |
310 | usb_free_urb(S->urb[i]); | |
311 | S->urb[i] = NULL; | |
312 | } | |
313 | } | |
314 | kfree(S->buffer); | |
315 | } | |
316 | ||
317 | ||
318 | static struct usb_device_id snd_usX2Y_usb_id_table[] = { | |
319 | { | |
320 | .match_flags = USB_DEVICE_ID_MATCH_DEVICE, | |
321 | .idVendor = 0x1604, | |
322 | .idProduct = USB_ID_US428 | |
323 | }, | |
324 | { | |
325 | .match_flags = USB_DEVICE_ID_MATCH_DEVICE, | |
326 | .idVendor = 0x1604, | |
327 | .idProduct = USB_ID_US122 | |
328 | }, | |
329 | { | |
330 | .match_flags = USB_DEVICE_ID_MATCH_DEVICE, | |
331 | .idVendor = 0x1604, | |
332 | .idProduct = USB_ID_US224 | |
333 | }, | |
334 | { /* terminator */ } | |
335 | }; | |
336 | ||
51721f70 | 337 | static int usX2Y_create_card(struct usb_device *device, struct snd_card **cardp) |
1da177e4 LT |
338 | { |
339 | int dev; | |
bbe85bbd | 340 | struct snd_card * card; |
bd7dd77c TI |
341 | int err; |
342 | ||
1da177e4 LT |
343 | for (dev = 0; dev < SNDRV_CARDS; ++dev) |
344 | if (enable[dev] && !snd_usX2Y_card_used[dev]) | |
345 | break; | |
346 | if (dev >= SNDRV_CARDS) | |
51721f70 | 347 | return -ENODEV; |
bd7dd77c TI |
348 | err = snd_card_create(index[dev], id[dev], THIS_MODULE, |
349 | sizeof(struct usX2Ydev), &card); | |
350 | if (err < 0) | |
51721f70 | 351 | return err; |
a014bbad | 352 | snd_usX2Y_card_used[usX2Y(card)->card_index = dev] = 1; |
1da177e4 | 353 | card->private_free = snd_usX2Y_card_private_free; |
a014bbad | 354 | usX2Y(card)->dev = device; |
1da177e4 | 355 | init_waitqueue_head(&usX2Y(card)->prepare_wait_queue); |
12aa7579 | 356 | mutex_init(&usX2Y(card)->prepare_mutex); |
d82af9f9 | 357 | INIT_LIST_HEAD(&usX2Y(card)->midi_list); |
1da177e4 LT |
358 | strcpy(card->driver, "USB "NAME_ALLCAPS""); |
359 | sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); | |
360 | sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", | |
361 | card->shortname, | |
362 | le16_to_cpu(device->descriptor.idVendor), | |
363 | le16_to_cpu(device->descriptor.idProduct), | |
364 | 0,//us428(card)->usbmidi.ifnum, | |
a014bbad | 365 | usX2Y(card)->dev->bus->busnum, usX2Y(card)->dev->devnum |
1da177e4 | 366 | ); |
51721f70 TI |
367 | *cardp = card; |
368 | return 0; | |
1da177e4 LT |
369 | } |
370 | ||
371 | ||
51721f70 TI |
372 | static int usX2Y_usb_probe(struct usb_device *device, |
373 | struct usb_interface *intf, | |
374 | const struct usb_device_id *device_id, | |
375 | struct snd_card **cardp) | |
1da177e4 LT |
376 | { |
377 | int err; | |
bbe85bbd | 378 | struct snd_card * card; |
51721f70 TI |
379 | |
380 | *cardp = NULL; | |
1da177e4 LT |
381 | if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 || |
382 | (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 && | |
383 | le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 && | |
51721f70 TI |
384 | le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428)) |
385 | return -EINVAL; | |
386 | ||
387 | err = usX2Y_create_card(device, &card); | |
388 | if (err < 0) | |
389 | return err; | |
3f5d3465 | 390 | snd_card_set_dev(card, &intf->dev); |
1da177e4 LT |
391 | if ((err = usX2Y_hwdep_new(card, device)) < 0 || |
392 | (err = snd_card_register(card)) < 0) { | |
393 | snd_card_free(card); | |
51721f70 | 394 | return err; |
1da177e4 | 395 | } |
51721f70 TI |
396 | *cardp = card; |
397 | return 0; | |
1da177e4 LT |
398 | } |
399 | ||
400 | /* | |
401 | * new 2.5 USB kernel API | |
402 | */ | |
403 | static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
404 | { | |
51721f70 TI |
405 | struct snd_card *card; |
406 | int err; | |
407 | ||
408 | err = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id, &card); | |
409 | if (err < 0) | |
410 | return err; | |
411 | dev_set_drvdata(&intf->dev, card); | |
412 | return 0; | |
1da177e4 LT |
413 | } |
414 | ||
415 | static void snd_usX2Y_disconnect(struct usb_interface *intf) | |
416 | { | |
417 | usX2Y_usb_disconnect(interface_to_usbdev(intf), | |
f4e9749f | 418 | usb_get_intfdata(intf)); |
1da177e4 LT |
419 | } |
420 | ||
421 | MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table); | |
422 | static struct usb_driver snd_usX2Y_usb_driver = { | |
1da177e4 LT |
423 | .name = "snd-usb-usx2y", |
424 | .probe = snd_usX2Y_probe, | |
425 | .disconnect = snd_usX2Y_disconnect, | |
426 | .id_table = snd_usX2Y_usb_id_table, | |
427 | }; | |
428 | ||
bbe85bbd | 429 | static void snd_usX2Y_card_private_free(struct snd_card *card) |
1da177e4 LT |
430 | { |
431 | kfree(usX2Y(card)->In04Buf); | |
432 | usb_free_urb(usX2Y(card)->In04urb); | |
433 | if (usX2Y(card)->us428ctls_sharedmem) | |
434 | snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem)); | |
a014bbad CL |
435 | if (usX2Y(card)->card_index >= 0 && usX2Y(card)->card_index < SNDRV_CARDS) |
436 | snd_usX2Y_card_used[usX2Y(card)->card_index] = 0; | |
1da177e4 LT |
437 | } |
438 | ||
439 | /* | |
440 | * Frees the device. | |
441 | */ | |
bbe85bbd | 442 | static void usX2Y_usb_disconnect(struct usb_device *device, void* ptr) |
1da177e4 LT |
443 | { |
444 | if (ptr) { | |
bbe85bbd TI |
445 | struct snd_card *card = ptr; |
446 | struct usX2Ydev *usX2Y = usX2Y(card); | |
cb432379 | 447 | struct list_head *p; |
1da177e4 LT |
448 | usX2Y->chip_status = USX2Y_STAT_CHIP_HUP; |
449 | usX2Y_unlinkSeq(&usX2Y->AS04); | |
450 | usb_kill_urb(usX2Y->In04urb); | |
cb432379 | 451 | snd_card_disconnect(card); |
1da177e4 | 452 | /* release the midi resources */ |
d82af9f9 | 453 | list_for_each(p, &usX2Y->midi_list) { |
ee733397 | 454 | snd_usbmidi_disconnect(p); |
1da177e4 LT |
455 | } |
456 | if (usX2Y->us428ctls_sharedmem) | |
457 | wake_up(&usX2Y->us428ctls_wait_queue_head); | |
cb432379 | 458 | snd_card_free(card); |
1da177e4 LT |
459 | } |
460 | } | |
461 | ||
462 | static int __init snd_usX2Y_module_init(void) | |
463 | { | |
464 | return usb_register(&snd_usX2Y_usb_driver); | |
465 | } | |
466 | ||
467 | static void __exit snd_usX2Y_module_exit(void) | |
468 | { | |
469 | usb_deregister(&snd_usX2Y_usb_driver); | |
470 | } | |
471 | ||
472 | module_init(snd_usX2Y_module_init) | |
473 | module_exit(snd_usX2Y_module_exit) |