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include/linux/usb/audio-v2.h: add more UAC2 details 

Also, remove the 'bmControl' field from uac_clock_selector_descriptor,
which was at the wrong offset. This struct is currently unused.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
hifive-unleashed-5.1
Daniel Mack 2010-05-31 13:35:38 +02:00 committed by Takashi Iwai
parent a6a3325913
commit 5dd360ebd8
1 changed files with 20 additions and 1 deletions
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21
include/linux/usb/audio-v2.h
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@ -41,6 +41,13 @@ struct uac_clock_source_descriptor {
__u8 iClockSource;
} __attribute__((packed));
/* bmAttribute fields */
#define UAC_CLOCK_SOURCE_TYPE_EXT 0x0
#define UAC_CLOCK_SOURCE_TYPE_INT_FIXED 0x1
#define UAC_CLOCK_SOURCE_TYPE_INT_VAR 0x2
#define UAC_CLOCK_SOURCE_TYPE_INT_PROG 0x3
#define UAC_CLOCK_SOURCE_SYNCED_TO_SOF (1 << 2)
/* 4.7.2.2 Clock Source Descriptor */
struct uac_clock_selector_descriptor {
@ -49,8 +56,20 @@ struct uac_clock_selector_descriptor {
__u8 bDescriptorSubtype;
__u8 bClockID;
__u8 bNrInPins;
__u8 bmControls;
__u8 baCSourceID[];
/* bmControls, bAssocTerminal and iClockSource omitted */
} __attribute__((packed));
/* 4.7.2.3 Clock Multiplier Descriptor */
struct uac_clock_multiplier_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bDescriptorSubtype;
__u8 bClockID;
__u8 bCSourceID;
__u8 bmControls;
__u8 iClockMultiplier;
} __attribute__((packed));
/* 4.7.2.4 Input terminal descriptor */