usb_ctrlrequest Struct Reference
List of all members.
- SETUP data for a USB device
control request : matches the
USB bmRequestType field : matches the
USB bRequest field : matches the
USB wValue field (le16 byte order) : matches the
USB wIndex field (le16 byte order) : matches the
USB wLength field (le16 byte order)
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.
Definition at line 146 of file ch9.h.
The documentation for this struct was generated from the following file: