Descriptors.h File Reference
#include <LUFA/Drivers/USB/USB.h>
Detailed Description
Header file for Descriptors.c.
Define Documentation
#define CDC_FUNCTIONAL_DESCRIPTOR |
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DataSize |
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) |
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Value:struct \
{ \
USB_Descriptor_Header_t Header; \
uint8_t SubType; \
uint8_t Data[DataSize]; \
}
Structure for a CDC class Functional descriptor, with a given data size. This is used instead of a type define so that the same macro can be used for functional descriptors of varying data lengths, while allowing the sizeof() operator to return correct results.
- Parameters:
-
[in] | DataSize | Size of the functional descriptor's data payload, in bytes |
#define CDC_NOTIFICATION_EPNUM 3 |
Endpoint number for the CDC control interface event notification endpoint.
#define CDC_NOTIFICATION_EPSIZE 8 |
Size of the CDC control interface notification endpoint bank, in bytes
Endpoint number for the CDC data interface RX (data OUT) endpoint
Endpoint number for the CDC data interface TX (data IN) endpoint
#define CDC_TXRX_EPSIZE 16 |
Size of the CDC data interface TX and RX data endpoint banks, in bytes
Function Documentation
uint16_t CALLBACK_USB_GetDescriptor |
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const uint16_t |
wValue, |
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const uint8_t |
wIndex, |
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void **const |
DescriptorAddress | |
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) |
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This function is called by the library when in device mode, and must be overridden (see LUFA 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.