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| author | Takashi Iwai | 2010-06-23 16:07:34 +0200 |
|---|---|---|
| committer | Takashi Iwai | 2010-06-23 16:07:34 +0200 |
| commit | 1240e6b5532358257c52351639a8d2382fe58f84 (patch) | |
| tree | 43d374ce976a41c6dcd12a70a51e0289093f8d07 /include/linux/usb/audio-v2.h | |
| parent | ALSA: alsa: riptide: don't use own hex_to_bin() method (diff) | |
| parent | ALSA: usb-audio - Add volume resolution quirk for some Logitech webcams (diff) | |
| download | kernel-qcow2-linux-1240e6b5532358257c52351639a8d2382fe58f84.tar.gz kernel-qcow2-linux-1240e6b5532358257c52351639a8d2382fe58f84.tar.xz kernel-qcow2-linux-1240e6b5532358257c52351639a8d2382fe58f84.zip | |
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'include/linux/usb/audio-v2.h')
| -rw-r--r-- | include/linux/usb/audio-v2.h | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h index 92f1d99f0f17..383b94ba8c20 100644 --- a/include/linux/usb/audio-v2.h +++ b/include/linux/usb/audio-v2.h @@ -18,6 +18,16 @@ /* v1.0 and v2.0 of this standard have many things in common. For the rest * of the definitions, please refer to audio.h */ +static inline bool uac2_control_is_readable(u32 bmControls, u8 control) +{ + return (bmControls >> (control * 2)) & 0x1; +} + +static inline bool uac2_control_is_writeable(u32 bmControls, u8 control) +{ + return (bmControls >> (control * 2)) & 0x2; +} + /* 4.7.2.1 Clock Source Descriptor */ struct uac_clock_source_descriptor { @@ -31,6 +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 { @@ -39,8 +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 */ |