USB: add USB_VENDOR_AND_INTERFACE_INFO() macro (d81a5d19) · Commits · 戴 / test

A lot of Broadcom Bluetooth devices provides vendor specific interface class and we are getting flooded by patches adding new device support. This change will help us enable support for any other Broadcom with vendor specific device that arrives in the future. Only the product id changes for those devices, so this macro would be perfect for us: { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) } Signed-off-by:

Marcel Holtmann <marcel@holtmann.org> Signed-off-by:

Gustavo Padovan <gustavo.padovan@collabora.co.uk> Acked-by:

Henrik Rydberg <rydberg@bitmath.se> Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/usb.h

+21 −0

Original line number	Diff line number	Diff line
		@@ -861,6 +861,27 @@ static inline int usb_make_path(struct usb_device dev, char buf, size_t size)
		.bInterfaceSubClass = (sc), \
		.bInterfaceProtocol = (pr)

		/**
		* USB_VENDOR_AND_INTERFACE_INFO - describe a specific usb vendor with a class of usb interfaces
		* @vend: the 16 bit USB Vendor ID
		* @cl: bInterfaceClass value
		* @sc: bInterfaceSubClass value
		* @pr: bInterfaceProtocol value
		*
		* This macro is used to create a struct usb_device_id that matches a
		* specific vendor with a specific class of interfaces.
		*
		* This is especially useful when explicitly matching devices that have
		* vendor specific bDeviceClass values, but standards-compliant interfaces.
		*/
		#define USB_VENDOR_AND_INTERFACE_INFO(vend, cl, sc, pr) \
		.match_flags = USB_DEVICE_ID_MATCH_INT_INFO \
		\| USB_DEVICE_ID_MATCH_VENDOR, \
		.idVendor = (vend), \
		.bInterfaceClass = (cl), \
		.bInterfaceSubClass = (sc), \
		.bInterfaceProtocol = (pr)

		/* ----------------------------------------------------------------------- */

		/* Stuff for dynamic usb ids */

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