Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-25 05:32:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'fix/usb-audio' into for-linus

Browse Source 
* fix/usb-audio:
  ALSA: usb-audio - Volume control quirk for QuickCam E 3500
This commit is contained in:
Takashi Iwai 2009-07-26 11:07:08 +02:00
commit 57e4a5c4f8
1 changed files with 20 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
sound/usb/usbmixer.c
View File

@ -990,20 +990,35 @@ static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
break;
}
/* quirk for UDA1321/N101 */
/* note that detection between firmware 2.1.1.7 (N101) and later 2.1.1.21 */
/* is not very clear from datasheets */
/* I hope that the min value is -15360 for newer firmware --jk */
/* volume control quirks */
switch (state->chip->usb_id) {
case USB_ID(0x0471, 0x0101):
case USB_ID(0x0471, 0x0104):
case USB_ID(0x0471, 0x0105):
case USB_ID(0x0672, 0x1041):
/* quirk for UDA1321/N101.
* note that detection between firmware 2.1.1.7 (N101)
* and later 2.1.1.21 is not very clear from datasheets.
* I hope that the min value is -15360 for newer firmware --jk
*/
if (!strcmp(kctl->id.name, "PCM Playback Volume") &&
cval->min == -15616) {
snd_printk(KERN_INFO "using volume control quirk for the UDA1321/N101 chip\n");
snd_printk(KERN_INFO
"set volume quirk for UDA1321/N101 chip\n");
cval->max = -256;
}
break;
case USB_ID(0x046d, 0x09a4):
if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
snd_printk(KERN_INFO
"set volume quirk for QuickCam E3500\n");
cval->min = 6080;
cval->max = 8768;
cval->res = 192;
}
break;
}
snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",