LUFA Library - Dual Virtual Serial Device Demo
Descriptors.h File Reference
#include <LUFA/Drivers/USB/USB.h>
#include <avr/pgmspace.h>

Data Structures

struct  USB_Descriptor_Configuration_t

Macros

#define CDC1_TX_EPADDR   (ENDPOINT_DIR_IN | 1)
#define CDC1_RX_EPADDR   (ENDPOINT_DIR_OUT | 2)
#define CDC1_NOTIFICATION_EPADDR   (ENDPOINT_DIR_IN | 3)
#define CDC2_TX_EPADDR   (ENDPOINT_DIR_IN | 4)
#define CDC2_RX_EPADDR   (ENDPOINT_DIR_OUT | 5)
#define CDC2_NOTIFICATION_EPADDR   (ENDPOINT_DIR_IN | 6)
#define CDC_NOTIFICATION_EPSIZE   8
#define CDC_TXRX_EPSIZE   16

Functions

uint16_t CALLBACK_USB_GetDescriptor (const uint16_t wValue, const uint8_t wIndex, const void **const DescriptorAddress) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3)

Detailed Description

Header file for Descriptors.c.

Macro Definition Documentation

#define CDC1_NOTIFICATION_EPADDR   (ENDPOINT_DIR_IN | 3)

Endpoint address of the first CDC interface's device-to-host notification IN endpoint.

#define CDC1_RX_EPADDR   (ENDPOINT_DIR_OUT | 2)

Endpoint address of the first CDC interface's host-to-device data OUT endpoint.

#define CDC1_TX_EPADDR   (ENDPOINT_DIR_IN | 1)

Endpoint address of the first CDC interface's device-to-host data IN endpoint.

#define CDC2_NOTIFICATION_EPADDR   (ENDPOINT_DIR_IN | 6)

Endpoint address of the second CDC interface's device-to-host notification IN endpoint.

#define CDC2_RX_EPADDR   (ENDPOINT_DIR_OUT | 5)

Endpoint address of the second CDC interface's host-to-device data OUT endpoint.

#define CDC2_TX_EPADDR   (ENDPOINT_DIR_IN | 4)

Endpoint address of the second CDC interface's device-to-host data IN endpoint.

#define CDC_NOTIFICATION_EPSIZE   8

Size in bytes of the CDC device-to-host notification IN endpoints.

#define CDC_TXRX_EPSIZE   16

Size in bytes of the CDC data IN and OUT endpoints.

Function Documentation

uint16_t CALLBACK_USB_GetDescriptor ( const uint16_t  wValue,
const uint8_t  wIndex,
const void **const  DescriptorAddress 
)

This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors" documentation) by the application code so that the address and size of a requested descriptor can be given to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the USB host.