| commit | 2c1d8aea2ca76df1b1de2aed23e3ceda2a044ed1 | |
| author | Jiri Kosina <jkosina@suse.cz> | |
| Wed, 4 Jul 2007 14:45:59 +0000 (4 16:45 +0200) | ||
| committer | Jiri Kosina <jkosina@suse.cz> | |
| Mon, 9 Jul 2007 12:13:37 +0000 (9 14:13 +0200) | ||
| tree | 84441a52707b1239e8395b282b986dfb5a9cd3f1 | treesnapshot (tar.gz zip) |
| parent | 3c5f4b25f3552c9bcb52eb956753a3c8140480b7 | commitdiff |
HID: handle cases of volume knobs generating relative values
There are some devices (for example Dell Multimedia Keyboard SK-8135) that have
a volume control knob which generates relative events instead of absolute.
hid-input maps them to ABS_VOLUME. HUT pages don't restrict volume to absolute
values.
Adding REL_VOLUME doesn't seem feasible, nothing knows how to handle it. This
patch translates relative ABS_VOLUME events into appropriate number of series
of VOLUME_UP or VOLUME_DOWN events respectively, so that userspace sees the
correct values in the end.
kernel.org bugzilla 5233
Reported-by: Jochen Eisinger <jochen@penguin-breeder.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
There are some devices (for example Dell Multimedia Keyboard SK-8135) that have
a volume control knob which generates relative events instead of absolute.
hid-input maps them to ABS_VOLUME. HUT pages don't restrict volume to absolute
values.
Adding REL_VOLUME doesn't seem feasible, nothing knows how to handle it. This
patch translates relative ABS_VOLUME events into appropriate number of series
of VOLUME_UP or VOLUME_DOWN events respectively, so that userspace sees the
correct values in the end.
kernel.org bugzilla 5233
Reported-by: Jochen Eisinger <jochen@penguin-breeder.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| drivers/hid/hid-input.c | diffblobblamehistory |