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ALSA: snd-usb: handle raw data format of UAC2 devices

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UAC2 compliant audio devices may announce the capability to transport
raw audio data on their endpoints. Catch this and handle it as
'special' stream on the ALSA side.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Andreas Koch <andreas@akdesigninc.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Daniel Mack 2013-03-17 20:07:25 +08:00 • committed by Takashi Iwai
parent 2fcdb06d49
commit 717bfb5f46
2 changed files with 9 additions and 4 deletions
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2
include/linux/usb/audio-v2.h
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@ -170,6 +170,8 @@ struct uac2_as_header_descriptor {
__u8 iChannelNames;
} __attribute__((packed));
#define UAC2_FORMAT_TYPE_I_RAW_DATA (1 << 31)
/* 4.10.1.2 Class-Specific AS Isochronous Audio Data Endpoint Descriptor */
struct uac2_iso_endpoint_descriptor {