- E3500 report cval->max more than it actually can handel, so if you set 95% capture level it will be silently muted. - Betwen cval->min and cval-max(real) is 2940 control units, but real are only 7 with cval->res = 384. - Alsa can't handel less than 10 controls, so make it more and set cval->res = 192.
Signed-off-by: Alexey Fisher bug-track@fisher-privat.net --- sound/usb/usbmixer.c | 16 ++++++++++++---- 1 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c index 5c48199..cda9d7c 100644 --- a/sound/usb/usbmixer.c +++ b/sound/usb/usbmixer.c @@ -1000,20 +1000,28 @@ 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"); cval->max = -256; } + case USB_ID(0x046d, 0x09a4): + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + snd_printk(KERN_INFO "using volume control quirk for the QuickCam E 3500\n"); + cval->min = 6080; + cval->max = 8768; + cval->res = 192; + } }
snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",