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_URB_PIPE_REQUEST structure (usb.h)

  • Article

The _URB_PIPE_REQUEST structure is used by USB client drivers to clear a stall condition on an endpoint.

Syntax

struct _URB_PIPE_REQUEST {
  struct _URB_HEADER Hdr;
  USBD_PIPE_HANDLE   PipeHandle;
  ULONG              Reserved;
};

Members

Hdr

Pointer to the _URB_HEADER structure that specifies the URB header information. Hdr.Function must be one of the following:

  • URB_FUNCTION_SYNC_RESET_PIPE_AND_CLEAR_STALL
  • URB_FUNCTION_SYNC_RESET_PIPE
  • URB_FUNCTION_SYNC_CLEAR_STALL
  • URB_FUNCTION_ABORT_PIPE
  • URB_FUNCTION_CLOSE_STATIC_STREAMS
The Hdr.Length member must be sizeof(_URB_PIPE_REQUEST).

PipeHandle

Specifies an opaque handle to the bulk or interrupt pipe. The host controller driver returns this handle when the client driver selects the device configuration with a URB of type URB_FUNCTION_SELECT_CONFIGURATION or when the client driver changes the settings for an interface with a URB of type URB_FUNCTION_SELECT_INTERFACE.

Reserved

Reserved. Do not use.

Remarks

The reserved members of this structure must be treated as opaque and are reserved for system use.

Requirements

Requirement Value
Header usb.h (include Usb.h)

See also

URB

USB Structures

_URB_HEADER