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Common Class Definitions

Macros

#define AUDIO_SAMPLE_FREQ(freq)   {.Byte1 = ((uint32_t)freq & 0xFF), .Byte2 = (((uint32_t)freq >> 8) & 0xFF), .Byte3 = (((uint32_t)freq >> 16) & 0xFF)}
 
#define AUDIO_EP_FULL_PACKETS_ONLY   (1 << 7)
 
#define AUDIO_EP_ACCEPTS_SMALL_PACKETS   (0 << 7)
 
#define AUDIO_EP_SAMPLE_FREQ_CONTROL   (1 << 0)
 
#define AUDIO_EP_PITCH_CONTROL   (1 << 1)
 

Typedefs

struct {
   USB_Descriptor_Header_t   Header
 
   uint8_t   Subtype
 
   uint8_t   TerminalID
 
   uint16_t   TerminalType
 
   uint8_t   AssociatedOutputTerminal
 
   uint8_t   TotalChannels
 
   uint16_t   ChannelConfig
 
   uint8_t   ChannelStrIndex
 
   uint8_t   TerminalStrIndex
 
USB_Audio_Descriptor_InputTerminal_t
 
struct {
   uint8_t   bLength
 
   uint8_t   bDescriptorType
 
   uint8_t   bDescriptorSubtype
 
   uint8_t   bTerminalID
 
   uint16_t   wTerminalType
 
   uint8_t   bAssocTerminal
 
   uint8_t   bNrChannels
 
   uint16_t   wChannelConfig
 
   uint8_t   iChannelNames
 
   uint8_t   iTerminal
 
USB_Audio_StdDescriptor_InputTerminal_t
 
struct {
   USB_Descriptor_Header_t   Header
 
   uint8_t   Subtype
 
   uint8_t   TerminalID
 
   uint16_t   TerminalType
 
   uint8_t   AssociatedInputTerminal
 
   uint8_t   SourceID
 
   uint8_t   TerminalStrIndex
 
USB_Audio_Descriptor_OutputTerminal_t
 
struct {
   uint8_t   bLength
 
   uint8_t   bDescriptorType
 
   uint8_t   bDescriptorSubtype
 
   uint8_t   bTerminalID
 
   uint16_t   wTerminalType
 
   uint8_t   bAssocTerminal
 
   uint8_t   bSourceID
 
   uint8_t   iTerminal
 
USB_Audio_StdDescriptor_OutputTerminal_t
 
struct {
   USB_Descriptor_Header_t   Header
 
   uint8_t   Subtype
 
   uint16_t   ACSpecification
 
   uint16_t   TotalLength
 
   uint8_t   InCollection
 
   uint8_t   InterfaceNumber
 
USB_Audio_Descriptor_Interface_AC_t
 
struct {
   uint8_t   bLength
 
   uint8_t   bDescriptorType
 
   uint8_t   bDescriptorSubtype
 
   uint16_t   bcdADC
 
   uint16_t   wTotalLength
 
   uint8_t   bInCollection
 
   uint8_t   bInterfaceNumbers
 
USB_Audio_StdDescriptor_Interface_AC_t
 
struct {
   USB_Descriptor_Header_t   Header
 
   uint8_t   Subtype
 
   uint8_t   UnitID
 
   uint8_t   SourceID
 
   uint8_t   ControlSize
 
   uint8_t   ChannelControls [3]
 
   uint8_t   FeatureUnitStrIndex
 
USB_Audio_Descriptor_FeatureUnit_t
 
struct {
   uint8_t   bLength
 
   uint8_t   bDescriptorType
 
   uint8_t   bDescriptorSubtype
 
   uint8_t   bUnitID
 
   uint8_t   bSourceID
 
   uint8_t   bControlSize
 
   uint8_t   bmaControls [3]
 
   uint8_t   iFeature
 
USB_Audio_StdDescriptor_FeatureUnit_t
 
struct {
   USB_Descriptor_Header_t   Header
 
   uint8_t   Subtype
 
   uint8_t   TerminalLink
 
   uint8_t   FrameDelay
 
   uint16_t   AudioFormat
 
USB_Audio_Descriptor_Interface_AS_t
 
struct {
   uint8_t   bLength
 
   uint8_t   bDescriptorType
 
   uint8_t   bDescriptorSubtype
 
   uint8_t   bTerminalLink
 
   uint8_t   bDelay
 
   uint16_t   wFormatTag
 
USB_Audio_StdDescriptor_Interface_AS_t
 
struct {
   USB_Descriptor_Header_t   Header
 
   uint8_t   Subtype
 
   uint8_t   FormatType
 
   uint8_t   Channels
 
   uint8_t   SubFrameSize
 
   uint8_t   BitResolution
 
   uint8_t   TotalDiscreteSampleRates
 
USB_Audio_Descriptor_Format_t
 
struct {
   uint8_t   Byte1
 
   uint8_t   Byte2
 
   uint8_t   Byte3
 
USB_Audio_SampleFreq_t
 
struct {
   uint8_t   bLength
 
   uint8_t   bDescriptorType
 
   uint8_t   bDescriptorSubtype
 
   uint8_t   bFormatType
 
   uint8_t   bNrChannels
 
   uint8_t   bSubFrameSize
 
   uint8_t   bBitResolution
 
   uint8_t   bSampleFrequencyType
 
USB_Audio_StdDescriptor_Format_t
 
struct {
   USB_Descriptor_Endpoint_t   Endpoint
 
   uint8_t   Refresh
 
   uint8_t   SyncEndpointNumber
 
USB_Audio_Descriptor_StreamEndpoint_Std_t
 
struct {
   uint8_t   bLength
 
   uint8_t   bDescriptorType
 
   uint8_t   bEndpointAddress
 
   uint8_t   bmAttributes
 
   uint16_t   wMaxPacketSize
 
   uint8_t   bInterval
 
   uint8_t   bRefresh
 
   uint8_t   bSynchAddress
 
USB_Audio_StdDescriptor_StreamEndpoint_Std_t
 
struct {
   USB_Descriptor_Header_t   Header
 
   uint8_t   Subtype
 
   uint8_t   Attributes
 
   uint8_t   LockDelayUnits
 
   uint16_t   LockDelay
 
USB_Audio_Descriptor_StreamEndpoint_Spc_t
 
struct {
   uint8_t   bLength
 
   uint8_t   bDescriptorType
 
   uint8_t   bDescriptorSubtype
 
   uint8_t   bmAttributes
 
   uint8_t   bLockDelayUnits
 
   uint16_t   wLockDelay
 
USB_Audio_StdDescriptor_StreamEndpoint_Spc_t
 

Enumerations

enum  Audio_Descriptor_ClassSubclassProtocol_t {
  AUDIO_CSCP_AudioClass = 0x01, AUDIO_CSCP_ControlSubclass = 0x01, AUDIO_CSCP_ControlProtocol = 0x00, AUDIO_CSCP_AudioStreamingSubclass = 0x02,
  AUDIO_CSCP_MIDIStreamingSubclass = 0x03, AUDIO_CSCP_StreamingProtocol = 0x00
}
 
enum  Audio_CSInterface_AC_SubTypes_t {
  AUDIO_DSUBTYPE_CSInterface_Header = 0x01, AUDIO_DSUBTYPE_CSInterface_InputTerminal = 0x02, AUDIO_DSUBTYPE_CSInterface_OutputTerminal = 0x03, AUDIO_DSUBTYPE_CSInterface_Mixer = 0x04,
  AUDIO_DSUBTYPE_CSInterface_Selector = 0x05, AUDIO_DSUBTYPE_CSInterface_Feature = 0x06, AUDIO_DSUBTYPE_CSInterface_Processing = 0x07, AUDIO_DSUBTYPE_CSInterface_Extension = 0x08
}
 
enum  Audio_CSInterface_AS_SubTypes_t { AUDIO_DSUBTYPE_CSInterface_General = 0x01, AUDIO_DSUBTYPE_CSInterface_FormatType = 0x02, AUDIO_DSUBTYPE_CSInterface_FormatSpecific = 0x03 }
 
enum  Audio_CSEndpoint_SubTypes_t { AUDIO_DSUBTYPE_CSEndpoint_General = 0x01 }
 
enum  Audio_ClassRequests_t {
  AUDIO_REQ_SetCurrent = 0x01, AUDIO_REQ_SetMinimum = 0x02, AUDIO_REQ_SetMaximum = 0x03, AUDIO_REQ_SetResolution = 0x04,
  AUDIO_REQ_SetMemory = 0x05, AUDIO_REQ_GetCurrent = 0x81, AUDIO_REQ_GetMinimum = 0x82, AUDIO_REQ_GetMaximum = 0x83,
  AUDIO_REQ_GetResolution = 0x84, AUDIO_REQ_GetMemory = 0x85, AUDIO_REQ_GetStatus = 0xFF
}
 
enum  Audio_EndpointControls_t { AUDIO_EPCONTROL_SamplingFreq = 0x01, AUDIO_EPCONTROL_Pitch = 0x02 }
 

Audio Channel Masks

#define AUDIO_CHANNEL_LEFT_FRONT   (1 << 0)
 
#define AUDIO_CHANNEL_RIGHT_FRONT   (1 << 1)
 
#define AUDIO_CHANNEL_CENTER_FRONT   (1 << 2)
 
#define AUDIO_CHANNEL_LOW_FREQ_ENHANCE   (1 << 3)
 
#define AUDIO_CHANNEL_LEFT_SURROUND   (1 << 4)
 
#define AUDIO_CHANNEL_RIGHT_SURROUND   (1 << 5)
 
#define AUDIO_CHANNEL_LEFT_OF_CENTER   (1 << 6)
 
#define AUDIO_CHANNEL_RIGHT_OF_CENTER   (1 << 7)
 
#define AUDIO_CHANNEL_SURROUND   (1 << 8)
 
#define AUDIO_CHANNEL_SIDE_LEFT   (1 << 9)
 
#define AUDIO_CHANNEL_SIDE_RIGHT   (1 << 10)
 
#define AUDIO_CHANNEL_TOP   (1 << 11)
 

Audio Feature Masks

#define AUDIO_FEATURE_MUTE   (1 << 0)
 
#define AUDIO_FEATURE_VOLUME   (1 << 1)
 
#define AUDIO_FEATURE_BASS   (1 << 2)
 
#define AUDIO_FEATURE_MID   (1 << 3)
 
#define AUDIO_FEATURE_TREBLE   (1 << 4)
 
#define AUDIO_FEATURE_GRAPHIC_EQUALIZER   (1 << 5)
 
#define AUDIO_FEATURE_AUTOMATIC_GAIN   (1 << 6)
 
#define AUDIO_FEATURE_DELAY   (1 << 7)
 
#define AUDIO_FEATURE_BASS_BOOST   (1 << 8)
 
#define AUDIO_FEATURE_BASS_LOUDNESS   (1 << 9)
 

Audio Terminal Types

#define AUDIO_TERMINAL_UNDEFINED   0x0100
 
#define AUDIO_TERMINAL_STREAMING   0x0101
 
#define AUDIO_TERMINAL_VENDOR   0x01FF
 
#define AUDIO_TERMINAL_IN_UNDEFINED   0x0200
 
#define AUDIO_TERMINAL_IN_MIC   0x0201
 
#define AUDIO_TERMINAL_IN_DESKTOP_MIC   0x0202
 
#define AUDIO_TERMINAL_IN_PERSONAL_MIC   0x0203
 
#define AUDIO_TERMINAL_IN_OMNIDIR_MIC   0x0204
 
#define AUDIO_TERMINAL_IN_MIC_ARRAY   0x0205
 
#define AUDIO_TERMINAL_IN_PROCESSING_MIC   0x0206
 
#define AUDIO_TERMINAL_IN_OUT_UNDEFINED   0x0300
 
#define AUDIO_TERMINAL_OUT_SPEAKER   0x0301
 
#define AUDIO_TERMINAL_OUT_HEADPHONES   0x0302
 
#define AUDIO_TERMINAL_OUT_HEAD_MOUNTED   0x0303
 
#define AUDIO_TERMINAL_OUT_DESKTOP   0x0304
 
#define AUDIO_TERMINAL_OUT_ROOM   0x0305
 
#define AUDIO_TERMINAL_OUT_COMMUNICATION   0x0306
 
#define AUDIO_TERMINAL_OUT_LOWFREQ   0x0307
 

Detailed Description

Module Description

Constants, Types and Enum definitions that are common to both Device and Host modes for the USB Audio 1.0 Class.

Macro Definition Documentation

#define AUDIO_CHANNEL_CENTER_FRONT   (1 << 2)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 69 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_LEFT_FRONT   (1 << 0)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 63 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_LEFT_OF_CENTER   (1 << 6)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 81 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_LEFT_SURROUND   (1 << 4)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 75 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_LOW_FREQ_ENHANCE   (1 << 3)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 72 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_RIGHT_FRONT   (1 << 1)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 66 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_RIGHT_OF_CENTER   (1 << 7)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 84 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_RIGHT_SURROUND   (1 << 5)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 78 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_SIDE_LEFT   (1 << 9)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 90 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_SIDE_RIGHT   (1 << 10)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 93 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_SURROUND   (1 << 8)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 87 of file AudioClassCommon.h.

#define AUDIO_CHANNEL_TOP   (1 << 11)

Supported channel mask for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 96 of file AudioClassCommon.h.

#define AUDIO_EP_ACCEPTS_SMALL_PACKETS   (0 << 7)

Mask for the attributes parameter of an Audio class-specific Endpoint descriptor, indicating that the endpoint will accept partially filled endpoint packets of audio samples.

Definition at line 203 of file AudioClassCommon.h.

#define AUDIO_EP_FULL_PACKETS_ONLY   (1 << 7)

Mask for the attributes parameter of an Audio class-specific Endpoint descriptor, indicating that the endpoint accepts only filled endpoint packets of audio samples.

Definition at line 198 of file AudioClassCommon.h.

#define AUDIO_EP_PITCH_CONTROL   (1 << 1)

Mask for the attributes parameter of an Audio class-specific Endpoint descriptor, indicating that the endpoint allows for pitch adjustments to be made via control requests directed at the endpoint.

Definition at line 213 of file AudioClassCommon.h.

#define AUDIO_EP_SAMPLE_FREQ_CONTROL   (1 << 0)

Mask for the attributes parameter of an Audio class-specific Endpoint descriptor, indicating that the endpoint allows for sampling frequency adjustments to be made via control requests directed at the endpoint.

Definition at line 208 of file AudioClassCommon.h.

#define AUDIO_FEATURE_AUTOMATIC_GAIN   (1 << 6)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 120 of file AudioClassCommon.h.

#define AUDIO_FEATURE_BASS   (1 << 2)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 108 of file AudioClassCommon.h.

#define AUDIO_FEATURE_BASS_BOOST   (1 << 8)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 126 of file AudioClassCommon.h.

#define AUDIO_FEATURE_BASS_LOUDNESS   (1 << 9)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 129 of file AudioClassCommon.h.

#define AUDIO_FEATURE_DELAY   (1 << 7)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 123 of file AudioClassCommon.h.

#define AUDIO_FEATURE_GRAPHIC_EQUALIZER   (1 << 5)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 117 of file AudioClassCommon.h.

#define AUDIO_FEATURE_MID   (1 << 3)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 111 of file AudioClassCommon.h.

#define AUDIO_FEATURE_MUTE   (1 << 0)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 102 of file AudioClassCommon.h.

#define AUDIO_FEATURE_TREBLE   (1 << 4)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 114 of file AudioClassCommon.h.

#define AUDIO_FEATURE_VOLUME   (1 << 1)

Supported feature mask for an Audio class feature unit descriptor. See the Audio class specification for more details.

Definition at line 105 of file AudioClassCommon.h.

#define AUDIO_SAMPLE_FREQ (   freq)    {.Byte1 = ((uint32_t)freq & 0xFF), .Byte2 = (((uint32_t)freq >> 8) & 0xFF), .Byte3 = (((uint32_t)freq >> 16) & 0xFF)}

Convenience macro to fill a 24-bit USB_Audio_SampleFreq_t structure with the given sample rate as a 24-bit number.

Parameters
freqRequired audio sampling frequency in HZ

Definition at line 193 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_IN_DESKTOP_MIC   0x0202

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 150 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_IN_MIC   0x0201

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 147 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_IN_MIC_ARRAY   0x0205

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 159 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_IN_OMNIDIR_MIC   0x0204

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 156 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_IN_OUT_UNDEFINED   0x0300

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 165 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_IN_PERSONAL_MIC   0x0203

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 153 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_IN_PROCESSING_MIC   0x0206

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 162 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_IN_UNDEFINED   0x0200

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 144 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_OUT_COMMUNICATION   0x0306

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 183 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_OUT_DESKTOP   0x0304

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 177 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_OUT_HEAD_MOUNTED   0x0303

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 174 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_OUT_HEADPHONES   0x0302

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 171 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_OUT_LOWFREQ   0x0307

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 186 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_OUT_ROOM   0x0305

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 180 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_OUT_SPEAKER   0x0301

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 168 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_STREAMING   0x0101

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 138 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_UNDEFINED   0x0100

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 135 of file AudioClassCommon.h.

#define AUDIO_TERMINAL_VENDOR   0x01FF

Terminal type constant for an Audio class terminal descriptor. See the Audio class specification for more details.

Definition at line 141 of file AudioClassCommon.h.

Typedef Documentation

typedef { ... } USB_Audio_SampleFreq_t

Enumeration Type Documentation

Enum for the Audio class specific control requests that can be issued by the USB bus host.

Enumerator:
AUDIO_REQ_SetCurrent 

Audio class-specific request to set the current value of a parameter within the device.

AUDIO_REQ_SetMinimum 

Audio class-specific request to set the minimum value of a parameter within the device.

AUDIO_REQ_SetMaximum 

Audio class-specific request to set the maximum value of a parameter within the device.

AUDIO_REQ_SetResolution 

Audio class-specific request to set the resolution value of a parameter within the device.

AUDIO_REQ_SetMemory 

Audio class-specific request to set the memory value of a parameter within the device.

AUDIO_REQ_GetCurrent 

Audio class-specific request to get the current value of a parameter within the device.

AUDIO_REQ_GetMinimum 

Audio class-specific request to get the minimum value of a parameter within the device.

AUDIO_REQ_GetMaximum 

Audio class-specific request to get the maximum value of a parameter within the device.

AUDIO_REQ_GetResolution 

Audio class-specific request to get the resolution value of a parameter within the device.

AUDIO_REQ_GetMemory 

Audio class-specific request to get the memory value of a parameter within the device.

AUDIO_REQ_GetStatus 

Audio class-specific request to get the device status.

Definition at line 269 of file AudioClassCommon.h.

Audio class specific endpoint description subtypes, for the Audio Streaming interface.

Enumerator:
AUDIO_DSUBTYPE_CSEndpoint_General 

Audio class specific endpoint general descriptor.

Definition at line 263 of file AudioClassCommon.h.

Audio class specific interface description subtypes, for the Audio Control interface.

Enumerator:
AUDIO_DSUBTYPE_CSInterface_Header 

Audio class specific control interface header.

AUDIO_DSUBTYPE_CSInterface_InputTerminal 

Audio class specific control interface Input Terminal.

AUDIO_DSUBTYPE_CSInterface_OutputTerminal 

Audio class specific control interface Output Terminal.

AUDIO_DSUBTYPE_CSInterface_Mixer 

Audio class specific control interface Mixer Unit.

AUDIO_DSUBTYPE_CSInterface_Selector 

Audio class specific control interface Selector Unit.

AUDIO_DSUBTYPE_CSInterface_Feature 

Audio class specific control interface Feature Unit.

AUDIO_DSUBTYPE_CSInterface_Processing 

Audio class specific control interface Processing Unit.

AUDIO_DSUBTYPE_CSInterface_Extension 

Audio class specific control interface Extension Unit.

Definition at line 242 of file AudioClassCommon.h.

Audio class specific interface description subtypes, for the Audio Streaming interface.

Enumerator:
AUDIO_DSUBTYPE_CSInterface_General 

Audio class specific streaming interface general descriptor.

AUDIO_DSUBTYPE_CSInterface_FormatType 

Audio class specific streaming interface format type descriptor.

AUDIO_DSUBTYPE_CSInterface_FormatSpecific 

Audio class specific streaming interface format information descriptor.

Definition at line 255 of file AudioClassCommon.h.

Enum for possible Class, Subclass and Protocol values of device and interface descriptors relating to the Audio device class.

Enumerator:
AUDIO_CSCP_AudioClass 

Descriptor Class value indicating that the device or interface belongs to the USB Audio 1.0 class.

AUDIO_CSCP_ControlSubclass 

Descriptor Subclass value indicating that the device or interface belongs to the Audio Control subclass.

AUDIO_CSCP_ControlProtocol 

Descriptor Protocol value indicating that the device or interface belongs to the Audio Control protocol.

AUDIO_CSCP_AudioStreamingSubclass 

Descriptor Subclass value indicating that the device or interface belongs to the MIDI Streaming subclass.

AUDIO_CSCP_MIDIStreamingSubclass 

Descriptor Subclass value indicating that the device or interface belongs to the Audio streaming subclass.

AUDIO_CSCP_StreamingProtocol 

Descriptor Protocol value indicating that the device or interface belongs to the Streaming Audio protocol.

Definition at line 219 of file AudioClassCommon.h.

Enum for Audio class specific Endpoint control modifiers which can be set and retrieved by a USB host, if the corresponding endpoint control is indicated to be supported in the Endpoint's Audio-class specific endpoint descriptor.

Enumerator:
AUDIO_EPCONTROL_SamplingFreq 

Sampling frequency adjustment of the endpoint.

AUDIO_EPCONTROL_Pitch 

Pitch adjustment of the endpoint.

Definition at line 287 of file AudioClassCommon.h.