struct_usb_ctrlrequest(9) suse man page | unix.com

STRUCT 
USB_CTRLREQUE(9) 				      Kernel Mode Gadget API					   STRUCT USB_CTRLREQUE(9)

NAME
       struct_usb_ctrlrequest - SETUP data for a USB device control request

SYNOPSIS
       struct usb_ctrlrequest {
	 __u8 bRequestType;
	 __u8 bRequest;
	 __le16 wValue;
	 __le16 wIndex;
	 __le16 wLength;
       };

MEMBERS
       bRequestType
	   matches the USB bmRequestType field

       bRequest
	   matches the USB bRequest field

       wValue
	   matches the USB wValue field (le16 byte order)

       wIndex
	   matches the USB wIndex field (le16 byte order)

       wLength
	   matches the USB wLength field (le16 byte order)

DESCRIPTION
       This structure is used to send control requests to a USB device. It matches the different fields of the USB 2.0 Spec section 9.3, table
       9-2. See the USB spec for a fuller description of the different fields, and what they are used for.

       Note that the driver for any interface can issue control requests. For most devices, interfaces don't coordinate with each other, so such
       requests may be made at any time.

AUTHOR
       David Brownell <dbrownell@users.sourceforge.net>
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						   STRUCT USB_CTRLREQUE(9)