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

bRequest

wValue

wIndex

wLength

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>

COPYRIGHT¶