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| author |   Alexander Tsoy <alexander@tsoy.me> | 2020-02-29 18:18:15 +0300 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2020-03-06 09:03:17 +0100 |
| commit | 2edb84e3047b93da2f2b234219cdc304df042d9e (patch) | |
| tree | 26855fa73e05965f2397f83c7e8022d3d36e2ded /sound/usb/quirks-table.h | |
| parent | ALSA: korg1212: fix if-statement empty body warnings (diff) | |
| download | wireguard-linux-2edb84e3047b93da2f2b234219cdc304df042d9e.tar.xz wireguard-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/quirks-table.h')
| -rw-r--r-- | sound/usb/quirks-table.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index d187aa6d50db..1c8719292eee 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -3472,7 +3472,7 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"), }, /* MOTU Microbook II */ { - USB_DEVICE(0x07fd, 0x0004), + USB_DEVICE_VENDOR_SPEC(0x07fd, 0x0004), .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { .vendor_name = "MOTU", .product_name = "MicroBookII", |