cregit-Linux how code gets into the kernel

Release 4.12 include/uapi/linux/usb/audio.h

/*
 * <linux/usb/audio.h> -- USB Audio definitions.
 *
 * Copyright (C) 2006 Thumtronics Pty Ltd.
 * Developed for Thumtronics by Grey Innovation
 * Ben Williamson <ben.williamson@greyinnovation.com>
 *
 * This software is distributed under the terms of the GNU General Public
 * License ("GPL") version 2, as published by the Free Software Foundation.
 *
 * This file holds USB constants and structures defined
 * by the USB Device Class Definition for Audio Devices.
 * Comments below reference relevant sections of that document:
 *
 * http://www.usb.org/developers/devclass_docs/audio10.pdf
 *
 * Types and defines in this file are either specific to version 1.0 of
 * this standard or common for newer versions.
 */

#ifndef _UAPI__LINUX_USB_AUDIO_H

#define _UAPI__LINUX_USB_AUDIO_H

#include <linux/types.h>

/* bInterfaceProtocol values to denote the version of the standard used */

#define UAC_VERSION_1			0x00

#define UAC_VERSION_2			0x20

/* A.2 Audio Interface Subclass Codes */

#define USB_SUBCLASS_AUDIOCONTROL	0x01

#define USB_SUBCLASS_AUDIOSTREAMING	0x02

#define USB_SUBCLASS_MIDISTREAMING	0x03

/* A.5 Audio Class-Specific AC Interface Descriptor Subtypes */

#define UAC_HEADER			0x01

#define UAC_INPUT_TERMINAL		0x02

#define UAC_OUTPUT_TERMINAL		0x03

#define UAC_MIXER_UNIT			0x04

#define UAC_SELECTOR_UNIT		0x05

#define UAC_FEATURE_UNIT		0x06

#define UAC1_PROCESSING_UNIT		0x07

#define UAC1_EXTENSION_UNIT		0x08

/* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */

#define UAC_AS_GENERAL			0x01

#define UAC_FORMAT_TYPE			0x02

#define UAC_FORMAT_SPECIFIC		0x03

/* A.7 Processing Unit Process Types */

#define UAC_PROCESS_UNDEFINED		0x00

#define UAC_PROCESS_UP_DOWNMIX		0x01

#define UAC_PROCESS_DOLBY_PROLOGIC	0x02

#define UAC_PROCESS_STEREO_EXTENDER	0x03

#define UAC_PROCESS_REVERB		0x04

#define UAC_PROCESS_CHORUS		0x05

#define UAC_PROCESS_DYN_RANGE_COMP	0x06

/* A.8 Audio Class-Specific Endpoint Descriptor Subtypes */

#define UAC_EP_GENERAL			0x01

/* A.9 Audio Class-Specific Request Codes */

#define UAC_SET_			0x00

#define UAC_GET_			0x80


#define UAC__CUR			0x1

#define UAC__MIN			0x2

#define UAC__MAX			0x3

#define UAC__RES			0x4

#define UAC__MEM			0x5


#define UAC_SET_CUR			(UAC_SET_ | UAC__CUR)

#define UAC_GET_CUR			(UAC_GET_ | UAC__CUR)

#define UAC_SET_MIN			(UAC_SET_ | UAC__MIN)

#define UAC_GET_MIN			(UAC_GET_ | UAC__MIN)

#define UAC_SET_MAX			(UAC_SET_ | UAC__MAX)

#define UAC_GET_MAX			(UAC_GET_ | UAC__MAX)

#define UAC_SET_RES			(UAC_SET_ | UAC__RES)

#define UAC_GET_RES			(UAC_GET_ | UAC__RES)

#define UAC_SET_MEM			(UAC_SET_ | UAC__MEM)

#define UAC_GET_MEM			(UAC_GET_ | UAC__MEM)


#define UAC_GET_STAT			0xff

/* A.10 Control Selector Codes */

/* A.10.1 Terminal Control Selectors */

#define UAC_TERM_COPY_PROTECT		0x01

/* A.10.2 Feature Unit Control Selectors */

#define UAC_FU_MUTE			0x01

#define UAC_FU_VOLUME			0x02

#define UAC_FU_BASS			0x03

#define UAC_FU_MID			0x04

#define UAC_FU_TREBLE			0x05

#define UAC_FU_GRAPHIC_EQUALIZER	0x06

#define UAC_FU_AUTOMATIC_GAIN		0x07

#define UAC_FU_DELAY			0x08

#define UAC_FU_BASS_BOOST		0x09

#define UAC_FU_LOUDNESS			0x0a


#define UAC_CONTROL_BIT(CS)	(1 << ((CS) - 1))

/* A.10.3.1 Up/Down-mix Processing Unit Controls Selectors */

#define UAC_UD_ENABLE			0x01

#define UAC_UD_MODE_SELECT		0x02

/* A.10.3.2 Dolby Prologic (tm) Processing Unit Controls Selectors */

#define UAC_DP_ENABLE			0x01

#define UAC_DP_MODE_SELECT		0x02

/* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */

#define UAC_3D_ENABLE			0x01

#define UAC_3D_SPACE			0x02

/* A.10.3.4 Reverberation Processing Unit Control Selectors */

#define UAC_REVERB_ENABLE		0x01

#define UAC_REVERB_LEVEL		0x02

#define UAC_REVERB_TIME			0x03

#define UAC_REVERB_FEEDBACK		0x04

/* A.10.3.5 Chorus Processing Unit Control Selectors */

#define UAC_CHORUS_ENABLE		0x01

#define UAC_CHORUS_LEVEL		0x02

#define UAC_CHORUS_RATE			0x03

#define UAC_CHORUS_DEPTH		0x04

/* A.10.3.6 Dynamic Range Compressor Unit Control Selectors */

#define UAC_DCR_ENABLE			0x01

#define UAC_DCR_RATE			0x02

#define UAC_DCR_MAXAMPL			0x03

#define UAC_DCR_THRESHOLD		0x04

#define UAC_DCR_ATTACK_TIME		0x05

#define UAC_DCR_RELEASE_TIME		0x06

/* A.10.4 Extension Unit Control Selectors */

#define UAC_XU_ENABLE			0x01

/* MIDI - A.1 MS Class-Specific Interface Descriptor Subtypes */

#define UAC_MS_HEADER			0x01

#define UAC_MIDI_IN_JACK		0x02

#define UAC_MIDI_OUT_JACK		0x03

/* MIDI - A.1 MS Class-Specific Endpoint Descriptor Subtypes */

#define UAC_MS_GENERAL			0x01

/* Terminals - 2.1 USB Terminal Types */

#define UAC_TERMINAL_UNDEFINED		0x100

#define UAC_TERMINAL_STREAMING		0x101

#define UAC_TERMINAL_VENDOR_SPEC	0x1FF

/* Terminal Control Selectors */
/* 4.3.2  Class-Specific AC Interface Descriptor */

struct uac1_ac_header_descriptor {
	
__u8  bLength;			/* 8 + n */
	
__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
	
__u8  bDescriptorSubtype;	/* UAC_MS_HEADER */
	
__le16 bcdADC;			/* 0x0100 */
	
__le16 wTotalLength;		/* includes Unit and Terminal desc. */
	
__u8  bInCollection;		/* n */
	
__u8  baInterfaceNr[];		/* [n] */
} __attribute__ ((packed));


#define UAC_DT_AC_HEADER_SIZE(n)	(8 + (n))

/* As above, but more useful for defining your own descriptors: */

#define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n)			\
struct uac1_ac_header_descriptor_##n {                  \
        __u8  bLength;                                          \
        __u8  bDescriptorType;                                  \
        __u8  bDescriptorSubtype;                               \
        __le16 bcdADC;                                          \
        __le16 wTotalLength;                                    \
        __u8  bInCollection;                                    \
        __u8  baInterfaceNr[n];                                 \
} __attribute__ ((packed))

/* 4.3.2.1 Input Terminal Descriptor */

struct uac_input_terminal_descriptor {
	
__u8  bLength;			/* in bytes: 12 */
	
__u8  bDescriptorType;		/* CS_INTERFACE descriptor type */
	
__u8  bDescriptorSubtype;	/* INPUT_TERMINAL descriptor subtype */
	
__u8  bTerminalID;		/* Constant uniquely terminal ID */
	
__le16 wTerminalType;		/* USB Audio Terminal Types */
	
__u8  bAssocTerminal;		/* ID of the Output Terminal associated */
	
__u8  bNrChannels;		/* Number of logical output channels */
	
__le16 wChannelConfig;
	
__u8  iChannelNames;
	
__u8  iTerminal;
} __attribute__ ((packed));


#define UAC_DT_INPUT_TERMINAL_SIZE			12

/* Terminals - 2.2 Input Terminal Types */

#define UAC_INPUT_TERMINAL_UNDEFINED			0x200

#define UAC_INPUT_TERMINAL_MICROPHONE			0x201

#define UAC_INPUT_TERMINAL_DESKTOP_MICROPHONE		0x202

#define UAC_INPUT_TERMINAL_PERSONAL_MICROPHONE		0x203

#define UAC_INPUT_TERMINAL_OMNI_DIR_MICROPHONE		0x204

#define UAC_INPUT_TERMINAL_MICROPHONE_ARRAY		0x205

#define UAC_INPUT_TERMINAL_PROC_MICROPHONE_ARRAY	0x206

/* Terminals - control selectors */


#define UAC_TERMINAL_CS_COPY_PROTECT_CONTROL		0x01

/* 4.3.2.2 Output Terminal Descriptor */

struct uac1_output_terminal_descriptor {
	
__u8  bLength;			/* in bytes: 9 */
	
__u8  bDescriptorType;		/* CS_INTERFACE descriptor type */
	
__u8  bDescriptorSubtype;	/* OUTPUT_TERMINAL descriptor subtype */
	
__u8  bTerminalID;		/* Constant uniquely terminal ID */
	
__le16 wTerminalType;		/* USB Audio Terminal Types */
	
__u8  bAssocTerminal;		/* ID of the Input Terminal associated */
	
__u8  bSourceID;		/* ID of the connected Unit or Terminal*/
	
__u8  iTerminal;
} __attribute__ ((packed));


#define UAC_DT_OUTPUT_TERMINAL_SIZE			9

/* Terminals - 2.3 Output Terminal Types */

#define UAC_OUTPUT_TERMINAL_UNDEFINED			0x300

#define UAC_OUTPUT_TERMINAL_SPEAKER			0x301

#define UAC_OUTPUT_TERMINAL_HEADPHONES			0x302

#define UAC_OUTPUT_TERMINAL_HEAD_MOUNTED_DISPLAY_AUDIO	0x303

#define UAC_OUTPUT_TERMINAL_DESKTOP_SPEAKER		0x304

#define UAC_OUTPUT_TERMINAL_ROOM_SPEAKER		0x305

#define UAC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER	0x306

#define UAC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER	0x307

/* Set bControlSize = 2 as default setting */

#define UAC_DT_FEATURE_UNIT_SIZE(ch)		(7 + ((ch) + 1) * 2)

/* As above, but more useful for defining your own descriptors: */

#define DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(ch)			\
struct uac_feature_unit_descriptor_##ch {                       \
        __u8  bLength;                                          \
        __u8  bDescriptorType;                                  \
        __u8  bDescriptorSubtype;                               \
        __u8  bUnitID;                                          \
        __u8  bSourceID;                                        \
        __u8  bControlSize;                                     \
        __le16 bmaControls[ch + 1];                             \
        __u8  iFeature;                                         \
} __attribute__ ((packed))

/* 4.3.2.3 Mixer Unit Descriptor */

struct uac_mixer_unit_descriptor {
	
__u8 bLength;
	
__u8 bDescriptorType;
	
__u8 bDescriptorSubtype;
	
__u8 bUnitID;
	
__u8 bNrInPins;
	
__u8 baSourceID[];
} __attribute__ ((packed));


static inline __u8 uac_mixer_unit_bNrChannels(struct uac_mixer_unit_descriptor *desc) { return desc->baSourceID[desc->bNrInPins]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells22100.00%1100.00%
Total22100.00%1100.00%


static inline __u32 uac_mixer_unit_wChannelConfig(struct uac_mixer_unit_descriptor *desc, int protocol) { if (protocol == UAC_VERSION_1) return (desc->baSourceID[desc->bNrInPins + 2] << 8) | desc->baSourceID[desc->bNrInPins + 1]; else return (desc->baSourceID[desc->bNrInPins + 4] << 24) | (desc->baSourceID[desc->bNrInPins + 3] << 16) | (desc->baSourceID[desc->bNrInPins + 2] << 8) | (desc->baSourceID[desc->bNrInPins + 1]); }

Contributors

PersonTokensPropCommitsCommitProp
David Howells108100.00%1100.00%
Total108100.00%1100.00%


static inline __u8 uac_mixer_unit_iChannelNames(struct uac_mixer_unit_descriptor *desc, int protocol) { return (protocol == UAC_VERSION_1) ? desc->baSourceID[desc->bNrInPins + 3] : desc->baSourceID[desc->bNrInPins + 5]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells44100.00%1100.00%
Total44100.00%1100.00%


static inline __u8 *uac_mixer_unit_bmControls(struct uac_mixer_unit_descriptor *desc, int protocol) { return (protocol == UAC_VERSION_1) ? &desc->baSourceID[desc->bNrInPins + 4] : &desc->baSourceID[desc->bNrInPins + 6]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells47100.00%1100.00%
Total47100.00%1100.00%


static inline __u8 uac_mixer_unit_iMixer(struct uac_mixer_unit_descriptor *desc) { __u8 *raw = (__u8 *) desc; return raw[desc->bLength - 1]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells32100.00%1100.00%
Total32100.00%1100.00%

/* 4.3.2.4 Selector Unit Descriptor */ struct uac_selector_unit_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bUintID; __u8 bNrInPins; __u8 baSourceID[]; } __attribute__ ((packed));
static inline __u8 uac_selector_unit_iSelector(struct uac_selector_unit_descriptor *desc) { __u8 *raw = (__u8 *) desc; return raw[desc->bLength - 1]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells32100.00%1100.00%
Total32100.00%1100.00%

/* 4.3.2.5 Feature Unit Descriptor */ struct uac_feature_unit_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bUnitID; __u8 bSourceID; __u8 bControlSize; __u8 bmaControls[0]; /* variable length */ } __attribute__((packed));
static inline __u8 uac_feature_unit_iFeature(struct uac_feature_unit_descriptor *desc) { __u8 *raw = (__u8 *) desc; return raw[desc->bLength - 1]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells32100.00%1100.00%
Total32100.00%1100.00%

/* 4.3.2.6 Processing Unit Descriptors */ struct uac_processing_unit_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bUnitID; __u16 wProcessType; __u8 bNrInPins; __u8 baSourceID[]; } __attribute__ ((packed));
static inline __u8 uac_processing_unit_bNrChannels(struct uac_processing_unit_descriptor *desc) { return desc->baSourceID[desc->bNrInPins]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells22100.00%1100.00%
Total22100.00%1100.00%


static inline __u32 uac_processing_unit_wChannelConfig(struct uac_processing_unit_descriptor *desc, int protocol) { if (protocol == UAC_VERSION_1) return (desc->baSourceID[desc->bNrInPins + 2] << 8) | desc->baSourceID[desc->bNrInPins + 1]; else return (desc->baSourceID[desc->bNrInPins + 4] << 24) | (desc->baSourceID[desc->bNrInPins + 3] << 16) | (desc->baSourceID[desc->bNrInPins + 2] << 8) | (desc->baSourceID[desc->bNrInPins + 1]); }

Contributors

PersonTokensPropCommitsCommitProp
David Howells108100.00%1100.00%
Total108100.00%1100.00%


static inline __u8 uac_processing_unit_iChannelNames(struct uac_processing_unit_descriptor *desc, int protocol) { return (protocol == UAC_VERSION_1) ? desc->baSourceID[desc->bNrInPins + 3] : desc->baSourceID[desc->bNrInPins + 5]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells44100.00%1100.00%
Total44100.00%1100.00%


static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_descriptor *desc, int protocol) { return (protocol == UAC_VERSION_1) ? desc->baSourceID[desc->bNrInPins + 4] : desc->baSourceID[desc->bNrInPins + 6]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells44100.00%1100.00%
Total44100.00%1100.00%


static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc, int protocol) { return (protocol == UAC_VERSION_1) ? &desc->baSourceID[desc->bNrInPins + 5] : &desc->baSourceID[desc->bNrInPins + 7]; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells47100.00%1100.00%
Total47100.00%1100.00%


static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc, int protocol) { __u8 control_size = uac_processing_unit_bControlSize(desc, protocol); return *(uac_processing_unit_bmControls(desc, protocol) + control_size); }

Contributors

PersonTokensPropCommitsCommitProp
David Howells3078.95%150.00%
Pawel Moll821.05%150.00%
Total38100.00%2100.00%


static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc, int protocol) { __u8 control_size = uac_processing_unit_bControlSize(desc, protocol); return uac_processing_unit_bmControls(desc, protocol) + control_size + 1; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells3386.84%150.00%
Pawel Moll513.16%150.00%
Total38100.00%2100.00%

/* 4.5.2 Class-Specific AS Interface Descriptor */ struct uac1_as_header_descriptor { __u8 bLength; /* in bytes: 7 */ __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */ __u8 bDescriptorSubtype; /* AS_GENERAL */ __u8 bTerminalLink; /* Terminal ID of connected Terminal */ __u8 bDelay; /* Delay introduced by the data path */ __le16 wFormatTag; /* The Audio Data Format */ } __attribute__ ((packed)); #define UAC_DT_AS_HEADER_SIZE 7 /* Formats - A.1.1 Audio Data Format Type I Codes */ #define UAC_FORMAT_TYPE_I_UNDEFINED 0x0 #define UAC_FORMAT_TYPE_I_PCM 0x1 #define UAC_FORMAT_TYPE_I_PCM8 0x2 #define UAC_FORMAT_TYPE_I_IEEE_FLOAT 0x3 #define UAC_FORMAT_TYPE_I_ALAW 0x4 #define UAC_FORMAT_TYPE_I_MULAW 0x5 struct uac_format_type_i_continuous_descriptor { __u8 bLength; /* in bytes: 8 + (ns * 3) */ __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */ __u8 bDescriptorSubtype; /* FORMAT_TYPE */ __u8 bFormatType; /* FORMAT_TYPE_1 */ __u8 bNrChannels; /* physical channels in the stream */ __u8 bSubframeSize; /* */ __u8 bBitResolution; __u8 bSamFreqType; __u8 tLowerSamFreq[3]; __u8 tUpperSamFreq[3]; } __attribute__ ((packed)); #define UAC_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE 14 struct uac_format_type_i_discrete_descriptor { __u8 bLength; /* in bytes: 8 + (ns * 3) */ __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */ __u8 bDescriptorSubtype; /* FORMAT_TYPE */ __u8 bFormatType; /* FORMAT_TYPE_1 */ __u8 bNrChannels; /* physical channels in the stream */ __u8 bSubframeSize; /* */ __u8 bBitResolution; __u8 bSamFreqType; __u8 tSamFreq[][3]; } __attribute__ ((packed)); #define DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(n) \ struct uac_format_type_i_discrete_descriptor_##n { \ __u8 bLength; \ __u8 bDescriptorType; \ __u8 bDescriptorSubtype; \ __u8 bFormatType; \ __u8 bNrChannels; \ __u8 bSubframeSize; \ __u8 bBitResolution; \ __u8 bSamFreqType; \ __u8 tSamFreq[n][3]; \ } __attribute__ ((packed)) #define UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(n) (8 + (n * 3)) struct uac_format_type_i_ext_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bFormatType; __u8 bSubslotSize; __u8 bBitResolution; __u8 bHeaderLength; __u8 bControlSize; __u8 bSideBandProtocol; } __attribute__((packed)); /* Formats - Audio Data Format Type I Codes */ #define UAC_FORMAT_TYPE_II_MPEG 0x1001 #define UAC_FORMAT_TYPE_II_AC3 0x1002 struct uac_format_type_ii_discrete_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bFormatType; __le16 wMaxBitRate; __le16 wSamplesPerFrame; __u8 bSamFreqType; __u8 tSamFreq[][3]; } __attribute__((packed)); struct uac_format_type_ii_ext_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bFormatType; __u16 wMaxBitRate; __u16 wSamplesPerFrame; __u8 bHeaderLength; __u8 bSideBandProtocol; } __attribute__((packed)); /* type III */ #define UAC_FORMAT_TYPE_III_IEC1937_AC3 0x2001 #define UAC_FORMAT_TYPE_III_IEC1937_MPEG1_LAYER1 0x2002 #define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_NOEXT 0x2003 #define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_EXT 0x2004 #define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER1_LS 0x2005 #define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER23_LS 0x2006 /* Formats - A.2 Format Type Codes */ #define UAC_FORMAT_TYPE_UNDEFINED 0x0 #define UAC_FORMAT_TYPE_I 0x1 #define UAC_FORMAT_TYPE_II 0x2 #define UAC_FORMAT_TYPE_III 0x3 #define UAC_EXT_FORMAT_TYPE_I 0x81 #define UAC_EXT_FORMAT_TYPE_II 0x82 #define UAC_EXT_FORMAT_TYPE_III 0x83 struct uac_iso_endpoint_descriptor { __u8 bLength; /* in bytes: 7 */ __u8 bDescriptorType; /* USB_DT_CS_ENDPOINT */ __u8 bDescriptorSubtype; /* EP_GENERAL */ __u8 bmAttributes; __u8 bLockDelayUnits; __le16 wLockDelay; } __attribute__((packed)); #define UAC_ISO_ENDPOINT_DESC_SIZE 7 #define UAC_EP_CS_ATTR_SAMPLE_RATE 0x01 #define UAC_EP_CS_ATTR_PITCH_CONTROL 0x02 #define UAC_EP_CS_ATTR_FILL_MAX 0x80 /* status word format (3.7.1.1) */ #define UAC1_STATUS_TYPE_ORIG_MASK 0x0f #define UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF 0x0 #define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_IF 0x1 #define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_EP 0x2 #define UAC1_STATUS_TYPE_IRQ_PENDING (1 << 7) #define UAC1_STATUS_TYPE_MEM_CHANGED (1 << 6) struct uac1_status_word { __u8 bStatusType; __u8 bOriginator; } __attribute__((packed)); #endif /* _UAPI__LINUX_USB_AUDIO_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Howells183499.30%150.00%
Pawel Moll130.70%150.00%
Total1847100.00%2100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.