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Commit 17b72feb authored by Bjørn Mork's avatar Bjørn Mork Committed by Greg Kroah-Hartman
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USB: add USB_DEVICE_INTERFACE_CLASS macro 



Matching on device and interface class with with unspecified
subclass and protocol is sometimes useful.  This is slightly
different from USB_DEVICE_AND_INTERFACE_INFO which requires
the full interface class/subclass/protocol triplet.

Signed-off-by: default avatarBjørn Mork <bjorn@mork.no>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1b95bee5

include/linux/usb.h

+16 −0
Original line number Diff line number Diff line
@@ -807,6 +807,22 @@ static inline int usb_make_path(struct usb_device *dev, char *buf, size_t size) 
	.bcdDevice_lo = (lo), \

	.bcdDevice_hi = (hi)



/**

 * USB_DEVICE_INTERFACE_CLASS - describe a usb device with a specific interface class

 * @vend: the 16 bit USB Vendor ID

 * @prod: the 16 bit USB Product ID

 * @cl: bInterfaceClass value

 *

 * This macro is used to create a struct usb_device_id that matches a

 * specific interface class of devices.

 */

#define USB_DEVICE_INTERFACE_CLASS(vend, prod, cl) \

	.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \

		       USB_DEVICE_ID_MATCH_INT_CLASS, \

	.idVendor = (vend), \

	.idProduct = (prod), \

	.bInterfaceClass = (cl)



/**

 * USB_DEVICE_INTERFACE_PROTOCOL - describe a usb device with a specific interface protocol

 * @vend: the 16 bit USB Vendor ID