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| author | Jiri Kosina <jkosina@suse.cz> | 2017-11-22 11:19:51 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-22 09:37:16 +0100 |
| commit | 0c53c557f4de212696d5e94ce096ec34df437a22 (patch) | |
| tree | 341feabbdce3b983cbbf2ca0e4698f04e0f1f7eb /drivers/hid | |
| parent | 53165057044801541802f899ee3d415e8252b699 (diff) | |
| download | linux-stable-0c53c557f4de212696d5e94ce096ec34df437a22.tar.gz linux-stable-0c53c557f4de212696d5e94ce096ec34df437a22.tar.bz2 linux-stable-0c53c557f4de212696d5e94ce096ec34df437a22.zip | |
HID: elo: clear BTN_LEFT mapping
[ Upstream commit 9abd04af951e5734c9d5cfee9b49790844b734cf ]
ELO devices have one Button usage in GenDesk field, which makes hid-input map
it to BTN_LEFT; that confuses userspace, which then considers the device to be
a mouse/touchpad instead of touchscreen.
Fix that by unmapping BTN_LEFT and keeping only BTN_TOUCH in place.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-elo.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/hid/hid-elo.c b/drivers/hid/hid-elo.c index d0c8a1c1e1fe..2fc43ad7f0b6 100644 --- a/drivers/hid/hid-elo.c +++ b/drivers/hid/hid-elo.c @@ -42,6 +42,12 @@ static void elo_input_configured(struct hid_device *hdev, { struct input_dev *input = hidinput->input; + /* + * ELO devices have one Button usage in GenDesk field, which makes + * hid-input map it to BTN_LEFT; that confuses userspace, which then + * considers the device to be a mouse/touchpad instead of touchscreen. + */ + clear_bit(BTN_LEFT, input->keybit); set_bit(BTN_TOUCH, input->keybit); set_bit(ABS_PRESSURE, input->absbit); input_set_abs_params(input, ABS_PRESSURE, 0, 256, 0, 0); |