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authorBjørn Mork <bjorn@mork.no>2012-10-31 06:08:39 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-31 12:58:11 -0700
commit17b72feb2be14e6d37023267dc0e199e8e0e3fdc (patch)
treeb5f2e9d2c58dc4a64ea4c488e2ff67e287b4e4ad /include/linux/usb.h
parent1b95bee5630766448f40eecaa08b722f256335ea (diff)
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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: Bjørn Mork <bjorn@mork.no> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb.h')
-rw-r--r--include/linux/usb.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index f51f998..689b14b 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -808,6 +808,22 @@ static inline int usb_make_path(struct usb_device *dev, char *buf, size_t size)
.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
* @prod: the 16 bit USB Product ID
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