From 4d53b8012f1f01ddb3f24db2031b042bb4cbd0d0 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Mon, 23 Apr 2012 12:07:02 +0200 Subject: HID: Add device group to modalias HID devices are only partially presented to userland. Hotplugged devices emit events containing a modalias based on the basic bus, vendor and product entities. However, in practise a hid device can depend on details such as a single usb interface or a particular item in a report descriptor. This patch adds a device group to the hid device id, and broadcasts it using uevent and the device modalias. The module alias generation is modified to match. As a consequence, a device with a non-zero group will be processed by the corresponding group driver instead of by the generic hid driver. Signed-off-by: Henrik Rydberg Acked-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- include/linux/mod_devicetable.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux/mod_devicetable.h') diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 501da4cb8a6d..55ed0b0dc610 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -132,10 +132,11 @@ struct usb_device_id { #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200 #define HID_ANY_ID (~0) +#define HID_GROUP_ANY 0x0000 struct hid_device_id { __u16 bus; - __u16 pad1; + __u16 group; __u32 vendor; __u32 product; kernel_ulong_t driver_data -- cgit v1.2.3