summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorGustavo Padovan <gustavo.padovan@collabora.co.uk>2012-07-10 19:10:06 -0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-26 15:12:12 -0700
commit1289a4da9f715c71d7fce707b330f1c6dc1b9150 (patch)
tree84653db8e715c323551d40ce0386c1d75cb4dfc5
parent0135372d5c4305a59aee0091847da7ce0cf08ffe (diff)
USB: add USB_VENDOR_AND_INTERFACE_INFO() macro
commit d81a5d1956731c453b85c141458d4ff5d6cc5366 upstream. 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>
-rw-r--r--include/linux/usb.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index b08e04cf202b..6cd157629772 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -757,6 +757,27 @@ 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 */