1STRUCT USB_CTRLREQUE(9)     Kernel Mode Gadget API     STRUCT USB_CTRLREQUE(9)
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NAME

6       struct_usb_ctrlrequest - SETUP data for a USB device control request
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SYNOPSIS

9       struct usb_ctrlrequest {
10         __u8 bRequestType;
11         __u8 bRequest;
12         __le16 wValue;
13         __le16 wIndex;
14         __le16 wLength;
15       };
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MEMBERS

18       bRequestType
19           matches the USB bmRequestType field
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21       bRequest
22           matches the USB bRequest field
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24       wValue
25           matches the USB wValue field (le16 byte order)
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27       wIndex
28           matches the USB wIndex field (le16 byte order)
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30       wLength
31           matches the USB wLength field (le16 byte order)
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DESCRIPTION

34       This structure is used to send control requests to a USB device. It
35       matches the different fields of the USB 2.0 Spec section 9.3, table
36       9-2. See the USB spec for a fuller description of the different fields,
37       and what they are used for.
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39       Note that the driver for any interface can issue control requests. For
40       most devices, interfaces don't coordinate with each other, so such
41       requests may be made at any time.
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AUTHOR

44       David Brownell <dbrownell@users.sourceforge.net>
45           Author.
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48Kernel Hackers Manual 2.6.       November 2011         STRUCT USB_CTRLREQUE(9)
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