libusb_control_setup Struct Reference

Setup packet for control transfers. More...

#include <libusb.h>

Data Fields
uint8_t	bmRequestType
	Request type.
uint8_t	bRequest
	Request.
uint16_t	wValue
	Value.
uint16_t	wIndex
	Index.
uint16_t	wLength
	Number of bytes to transfer.

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Detailed Description

Setup packet for control transfers.

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Field Documentation

uint8_t libusb_control_setup::bmRequestType

Request type.

Bits 0:4 determine recipient, see libusb_request_recipient. Bits 5:6 determine type, see libusb_request_type. Bit 7 determines data transfer direction, see libusb_endpoint_direction.

uint8_t libusb_control_setup::bRequest

Request.

If the type bits of bmRequestType are equal to LIBUSB_REQUEST_TYPE_STANDARD then this field refers to libusb_standard_request. For other cases, use of this field is application-specific.

uint16_t libusb_control_setup::wValue

Value.

Varies according to request

uint16_t libusb_control_setup::wIndex

Index.

Varies according to request, typically used to pass an index or offset

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

• libusb.h