Data Fields

USB_Audio_Format_t Struct Reference
[Common Class Definitions]

Audio class-specific Format Descriptor. More...

#include <Audio.h>

Data Fields

USB_Descriptor_Header_t Header
uint8_t Subtype
uint8_t FormatType
uint8_t Channels
uint8_t SubFrameSize
uint8_t BitResolution
uint8_t SampleFrequencyType
USB_Audio_SampleFreq_t SampleFrequencies [AUDIO_TOTAL_SAMPLE_RATES]

Detailed Description

Type define for an Audio class-specific audio format descriptor. This is used to give the host full details about the number of channels, the sample resolution, acceptable sample frequencies and encoding method used in the device's audio streams. See the USB Audio specification for more details.


Field Documentation

Bits of resolution of each channel's samples in the stream.

Total number of discrete channels in the stream.

Format of the audio stream, see Audio Device Formats specification.

Regular descriptor header containing the descriptor's type and length.

Sample frequencies supported by the device.

Total number of sample frequencies supported by the device.

Size in bytes of each channel's sample data in the stream.

Sub type value used to distinguish between audio class-specific descriptors.


The documentation for this struct was generated from the following file: