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GET_SELECT_INTERFACE_REQUEST_SIZE macro

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The GET_SELECT_INTERFACE_REQUEST_SIZE macro returns the number of bytes required to create a select-interface URB.

Syntax

ULONG GET_SELECT_INTERFACE_REQUEST_SIZE(
  [in] ULONG   TotalPipes
);

Parameters

  • TotalPipes [in]
    Specifies the total number of endpoints (pipes) the interface has.

Return value

GET_SELECT_INTERFACE_REQUEST_SIZE returns the number of bytes required to hold an URB to select a new setting for an interface with the given number of pipes.

Requirements

Target platform

 Desktop

Header

 Usbdlib.h (include Usbdlib.h)

See also

URB

UsbBuildSelectInterfaceRequest

 

 

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