usb_audio_fu_evt Struct Reference

Feature Unit event structure. More...

#include <usb_audio.h>

Data Fields
enum usb_audio_direction	dir
enum usb_audio_fucs	cs
uint8_t	channel
uint8_t	val_len
const void *	val

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.

Parameters

dir	The device direction that has been changed. Applicable for Headset device only.
cs	Control selector, feature that has been changed.
channel	Device channel that has been changed. If 0xFF, then all channels have been changed.
val_len	Length of the val field.
val	Value of the feature that has been set.

Field Documentation

channel

uint8_t usb_audio_fu_evt::channel

cs

enum usb_audio_fucs usb_audio_fu_evt::cs

dir

enum usb_audio_direction usb_audio_fu_evt::dir

val

const void* usb_audio_fu_evt::val

val_len

uint8_t usb_audio_fu_evt::val_len

---

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

• include/usb/class/usb_audio.h