diff options
| author | Henrik Rydberg <rydberg@euromail.se> | 2012-04-23 14:07:02 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2012-05-01 14:54:54 +0400 |
| commit | 4d53b8012f1f01ddb3f24db2031b042bb4cbd0d0 (patch) | |
| tree | 4536bb9fefb51c212f28dee84e810ab0d6854a6e /scripts/mod | |
| parent | a7197c2e4120ce40e7e3f5580336b9a1dc791220 (diff) | |
| download | linux-4d53b8012f1f01ddb3f24db2031b042bb4cbd0d0.tar.xz | |
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 <rydberg@euromail.se>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'scripts/mod')
| -rw-r--r-- | scripts/mod/file2alias.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 8e730ccc3f2b..fe967cee7371 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -336,10 +336,12 @@ static int do_hid_entry(const char *filename, struct hid_device_id *id, char *alias) { id->bus = TO_NATIVE(id->bus); + id->group = TO_NATIVE(id->group); id->vendor = TO_NATIVE(id->vendor); id->product = TO_NATIVE(id->product); sprintf(alias, "hid:b%04X", id->bus); + ADD(alias, "g", id->group != HID_GROUP_ANY, id->group); ADD(alias, "v", id->vendor != HID_ANY_ID, id->vendor); ADD(alias, "p", id->product != HID_ANY_ID, id->product); |