aboutsummaryrefslogtreecommitdiffstats
path: root/sound/usb/card.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/usb/card.c')
-rw-r--r--sound/usb/card.c18
1 files changed, 2 insertions, 16 deletions
diff --git a/sound/usb/card.c b/sound/usb/card.c
index da1346bd4856..7a8ac1d81be7 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -236,7 +236,6 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
236 } 236 }
237 237
238 case UAC_VERSION_2: { 238 case UAC_VERSION_2: {
239 struct uac_clock_source_descriptor *cs;
240 struct usb_interface_assoc_descriptor *assoc = 239 struct usb_interface_assoc_descriptor *assoc =
241 usb_ifnum_to_if(dev, ctrlif)->intf_assoc; 240 usb_ifnum_to_if(dev, ctrlif)->intf_assoc;
242 241
@@ -245,21 +244,6 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
245 return -EINVAL; 244 return -EINVAL;
246 } 245 }
247 246
248 /* FIXME: for now, we expect there is at least one clock source
249 * descriptor and we always take the first one.
250 * We should properly support devices with multiple clock sources,
251 * clock selectors and sample rate conversion units. */
252
253 cs = snd_usb_find_csint_desc(host_iface->extra, host_iface->extralen,
254 NULL, UAC2_CLOCK_SOURCE);
255
256 if (!cs) {
257 snd_printk(KERN_ERR "CLOCK_SOURCE descriptor not found\n");
258 return -EINVAL;
259 }
260
261 chip->clock_id = cs->bClockID;
262
263 for (i = 0; i < assoc->bInterfaceCount; i++) { 247 for (i = 0; i < assoc->bInterfaceCount; i++) {
264 int intf = assoc->bFirstInterface + i; 248 int intf = assoc->bFirstInterface + i;
265 249
@@ -481,6 +465,8 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
481 goto __error; 465 goto __error;
482 } 466 }
483 467
468 chip->ctrl_intf = alts;
469
484 if (err > 0) { 470 if (err > 0) {
485 /* create normal USB audio interfaces */ 471 /* create normal USB audio interfaces */
486 if (snd_usb_create_streams(chip, ifnum) < 0 || 472 if (snd_usb_create_streams(chip, ifnum) < 0 ||