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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2021-01-13 22:24:13 -0800 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2021-02-02 11:10:30 +0100 |
| commit | 7c7d7ac7cebbf64a256b40ac7eb198cef8fd0642 (patch) | |
| tree | 85fceb86d4060e4b6a170c9aee2ce2798b627400 /drivers/iommu | |
| parent | ed9be64eefe26d7d8b0b5b9fa3ffdf425d87a01f (diff) | |
| download | linux-7c7d7ac7cebbf64a256b40ac7eb198cef8fd0642.tar.bz2 | |
HID: hid-input: avoid splitting keyboard, system and consumer controls
A typical USB keyboard usually splits its keys into several reports:
- one for the basic alphanumeric keys, modifier keys, F<n> keys, six pack
keys and keypad. This report's application is normally listed as
GenericDesktop.Keyboard
- a GenericDesktop.SystemControl report for the system control keys, such
as power and sleep
- Consumer.ConsumerControl report for multimedia (forward, rewind,
play/pause, mute, etc) and other extended keys.
- additional output, vendor specific, and feature reports
Splitting each report into a separate input device is wasteful and even
hurts userspace as it makes it harder to determine the true capabilities
(set of available keys) of a keyboard, so let's adjust application
matching to merge system control and consumer control reports with
keyboard report, if one has already been processed.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/iommu')
0 files changed, 0 insertions, 0 deletions