UsbBuildSelectInterfaceRequest macro
The UsbBuildSelectInterfaceRequest macro formats an URB with the parameters necessary to select an alternate setting for an interface on a USB device.
Syntax
void UsbBuildSelectInterfaceRequest( [in] PURB Urb, [in] USHORT Length, [in] USBD_CONFIGURATION_HANDLE ConfigurationHandle, [in] UCHAR InterfaceNumber, [in] UCHAR AlternateSetting );
Parameters
- Urb [in]
-
Pointer to an URB that is to be formatted as a select-interface request.
- Length [in]
-
Specifies the size, in bytes, of the URB. The URB_FUNCTION_SELECT_INTERFACE URB has a variable length. Clients can use the GET_SELECT_INTERFACE_REQUEST_SIZE macro to determine the URB length.
- ConfigurationHandle [in]
-
Specifies the handle for this interface returned by the HCD when a configuration was selected.
- InterfaceNumber [in]
-
Is the device-defined identifier for this interface specified in the descriptor for this interface.
- AlternateSetting [in]
-
Is the device-defined identifier of the alternate setting that this interface should now use.
Return value
This macro does not return a value.
Requirements
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Header |
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See also
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Build date: 12/5/2013
