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ALSA: usb-audio: Skip broken EU on Dell dock USB-audio
authorTakashi Iwai <tiwai@suse.de>
Tue, 24 Apr 2018 09:11:48 +0000 (11:11 +0200)
committerTakashi Iwai <tiwai@suse.de>
Tue, 24 Apr 2018 11:39:30 +0000 (13:39 +0200)
commitfa9b957f74abc2a09008bbbcaef167adc0108fbc
tree70a8d358177beb48d94b11bb80dd195479596c7atree | snapshot
parentc2b1650428a395d0006bafdeb71fa26cb1957f17commit | diff
ALSA: usb-audio: Skip broken EU on Dell dock USB-audio

The Dell Dock USB-audio device with 0bda:4014 is behaving notoriously
bad, and we have already applied some workaround to avoid the firmware
hiccup.  Yet we still need to skip one thing, the Extension Unit at ID
4, which doesn't react correctly to the mixer ctl access.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1090658
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/mixer_maps.c diff | blob | history
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