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authorTakashi Iwai <tiwai@suse.de>2023-07-25 11:20:57 +0200
committerTakashi Iwai <tiwai@suse.de>2023-07-25 14:21:11 +0200
commit3da435063777f8d861ba5a165344e3f75f839357 (patch)
tree12f967d735f81f8163264d13023c60542be63394 /Documentation
parentd510acb610e6aa07a04b688236868b2a5fd60deb (diff)
ALSA: usb-audio: Add quirk for Microsoft Modern Wireless Headset
Microsoft Modern Wireless Headset (appearing on the host as "Microsoft USB Link") has a playback and a capture mixer volume/switch, but they are fairly broken. The descriptor reports wrong dB ranges for playback, and the capture volume/switch don't influence on the actual recording at all. Moreover, there seem instabilities in the connection, and at best, we should disable the runtime PM. So this ended up with a quirk entry for: - Correct the playback dB range; I picked up some reasonable values but it's a guess work - Disable the capture mixer; it's completely useless and confuses PA/PW - Suppress get-sample-rate, apply the delay for message handling, and suppress the auto-suspend The behavior of the wheel control on the headset is somehow flaky, too, but it's an issue of HID. Link: https://bugzilla.suse.com/show_bug.cgi?id=1207129 Link: https://lore.kernel.org/r/20230725092057.15115-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
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