usb_audio_fu_evt Struct Reference

Feature Unit event structure. More...

#include <usb_audio.h>

Data Fields
enum usb_audio_direction	dir
	The device direction that has been changed.
enum usb_audio_fucs	cs
	Control selector feature that has been changed.
uint8_t	channel
	Device channel that has been changed.
uint8_t	val_len
	Length of the val field.
const void *	val
	Value of the feature that has been set.

Detailed Description

Feature Unit event structure.

The event structure is used by feature_update_cb in order to inform the App whenever the Host has modified one of the device features.

Field Documentation

channel

uint8_t usb_audio_fu_evt::channel

Device channel that has been changed.

If 0xFF, then all channels have been changed.

cs

enum usb_audio_fucs usb_audio_fu_evt::cs

Control selector feature that has been changed.

dir

enum usb_audio_direction usb_audio_fu_evt::dir

The device direction that has been changed.

Applicable for Headset device only.

val

const void* usb_audio_fu_evt::val

Value of the feature that has been set.

val_len

uint8_t usb_audio_fu_evt::val_len

Length of the val field.

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

• zephyr/usb/class/usb_audio.h