USB Audio Class 2 device API

USB Audio Class 2 device API. More...

Data Structures
struct	uac2_ops
	USB Audio 2 application event handlers. More...

Macros
#define	UAC2_ENTITY_ID(node)
	Get entity ID.

Functions
void	usbd_uac2_set_ops (const struct device *dev, const struct uac2_ops *ops, void *user_data)
	Register USB Audio 2 application callbacks.
int	usbd_uac2_send (const struct device *dev, uint8_t terminal, void *data, uint16_t size)
	Send audio data to output terminal.

Detailed Description

USB Audio Class 2 device API.

Macro Definition Documentation

UAC2_ENTITY_ID

#define UAC2_ENTITY_ID

(

node

)

#include <zephyr/usb/class/usbd_uac2.h>

Value:

        ({                                                                      \
                BUILD_ASSERT(DT_NODE_HAS_COMPAT(DT_PARENT(node), zephyr_uac2)); \
                UTIL_INC(DT_NODE_CHILD_IDX(node));                              \
        })

Get entity ID.

Parameters

node	node identifier

Function Documentation

usbd_uac2_send()

int usbd_uac2_send	(	const struct device *	dev,
		uint8_t	terminal,
		void *	data,
		uint16_t	size
	)

#include <zephyr/usb/class/usbd_uac2.h>

Send audio data to output terminal.

Data buffer must be sufficiently aligned and otherwise suitable for use by UDC driver.

Parameters

dev	USB Audio 2 device
terminal	Output Terminal ID linked to AudioStreaming interface
data	Buffer containing outgoing data
size	Number of bytes to send

Returns

0 on success, negative value on error

usbd_uac2_set_ops()

void usbd_uac2_set_ops	(	const struct device *	dev,
		const struct uac2_ops *	ops,
		void *	user_data
	)

#include <zephyr/usb/class/usbd_uac2.h>

Register USB Audio 2 application callbacks.

Parameters

dev	USB Audio 2 device instance
ops	USB Audio 2 callback structure
user_data	Opaque user data to pass to ops callbacks