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| author | Alexander Tsoy <alexander@tsoy.me> | 2020-02-29 16:18:15 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-03-06 09:03:17 +0100 |
| commit | 2edb84e3047b93da2f2b234219cdc304df042d9e (patch) | |
| tree | 26855fa73e05965f2397f83c7e8022d3d36e2ded /sound/usb/mixer_us16x08.c | |
| parent | ALSA: korg1212: fix if-statement empty body warnings (diff) | |
| download | linux-2edb84e3047b93da2f2b234219cdc304df042d9e.tar.xz linux-2edb84e3047b93da2f2b234219cdc304df042d9e.zip | |
ALSA: usb-audio: Add support for MOTU MicroBook IIc
MicroBook IIc operates in UAC2 mode by default. This patch addresses
several issues with it:
- MicroBook II and IIc shares the same USB ID. We can distinguish them
by interface class.
- MaxPacketsOnly attribute is erroneously set in endpoint descriptors.
As a result this card produces noise with all sample rates other than
96 KHz. This also causes issues like IOMMU page faults and other
problems with host controller.
- Sample rate changes takes more than 2 seconds for this device. Clock
validity request returns false during that period, so the clock validity
quirk is required.
Signed-off-by: Alexander Tsoy <alexander@tsoy.me>
Link: https://lore.kernel.org/r/20200229151815.14199-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer_us16x08.c')
0 files changed, 0 insertions, 0 deletions