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authorDaniel Mack <daniel@caiaq.de>2010-05-31 11:35:37 (GMT)
committerTakashi Iwai <tiwai@suse.de>2010-05-31 16:15:57 (GMT)
commita6a3325913efbe35a10e87fd3e9c3ce621fd32c7 (patch)
tree4b3300083115516ff8fff200da4d4300dea3b853 /Documentation/power
parentdcbe7bcfa32c5bc4f9bb6c75d4d41bb4db8c36fc (diff)
downloadlinux-fsl-qoriq-a6a3325913efbe35a10e87fd3e9c3ce621fd32c7.tar.xz
ALSA: usb-audio: support partially write-protected UAC2 controls
So far, UAC2 controls are marked read-only if any of the channels are marked read-only in the descriptors. Change this behaviour and - mark them writeable unless all channels are read-only - store the read-only mask in usb_mixer_elem_info and - check the mask again in set_cur_mix_value(), and bail out for write-protected channels. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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