ra8_usb_paud_format_t Struct Reference

Current iso stream format negotiated with the host. More...

#include <ra8_usb_paud.h>

Data Fields
uint32_t	sample_rate_hz
	Current SET_CUR sample rate.
uint8_t	channels
	1 = mono, 2 = stereo.
uint8_t	bytes_per_sample
	16-bit -> 2, 24-bit -> 3, etc.

Detailed Description

Current iso stream format negotiated with the host.

Mirrors the AS Format-Type-I descriptor: sample rate, channel count, and sub-frame size. USB Audio 1.0 sec 2.2.5 "Format Type Descriptor".

Invariant

sample_rate_hz != 0 && channels in {1,2} && bytes_per_sample in {1,2,3,4}.

Definition at line 151 of file ra8_usb_paud.h.

Field Documentation

bytes_per_sample

uint8_t ra8_usb_paud_format_t::bytes_per_sample

16-bit -> 2, 24-bit -> 3, etc.

Definition at line 154 of file ra8_usb_paud.h.

Referenced by ra8_usb_paud_set_format().

channels

uint8_t ra8_usb_paud_format_t::channels

1 = mono, 2 = stereo.

Definition at line 153 of file ra8_usb_paud.h.

Referenced by ra8_usb_paud_set_format().

sample_rate_hz

uint32_t ra8_usb_paud_format_t::sample_rate_hz

Current SET_CUR sample rate.

Definition at line 152 of file ra8_usb_paud.h.

Referenced by ra8_usb_paud_set_format().

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

• libs/ra8_hal/inc/ra8_usb_paud.h