ALSA: snd_usb_audio: ignore ctrl errors on QuickCam Pro for Notebooks
authorOleksij Rempel <bug-track@fisher-privat.net>
Tue, 19 Jun 2012 20:21:19 +0000 (22:21 +0200)
committerTakashi Iwai <tiwai@suse.de>
Wed, 20 Jun 2012 06:29:08 +0000 (08:29 +0200)
commitb64a1ba9d3111a7b3eb3bef96efb84dde15e6eac
tree941cfb5d14cfbde92ba49825ea016231c0733d69
parent05b9afd5b711b284c17f657495dc08f4a6f6e7e9
ALSA: snd_usb_audio: ignore ctrl errors on QuickCam Pro for Notebooks

This webcam works mostly ok, exept with skype.
Skype sends lots of ctrl messages to dynamically ajust
record level. If for some reasons it pokes some error
every thing goes broken:
- first pulseaudio blocks sound for all apps
- then video is reseted
- then skype freez

dmesg has lots of messages like:
cannot set freq 16000 to ep 0x86"

Setting ignore_ctl_error=1 fixes this problem.

Signed-off-by: Oleksij Rempel <bug-track@fisher-privat.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/mixer_maps.c