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HID: microsoft: support the Surface Dial
authorBenjamin Tissoires <benjamin.tissoires@redhat.com>
Fri, 13 Jul 2018 14:13:51 +0000 (16:13 +0200)
committerJiri Kosina <jkosina@suse.cz>
Tue, 17 Jul 2018 13:33:47 +0000 (15:33 +0200)
commit30576c5f490cb220ae8c1dcd918605ac1c4c103e
treebc55eb10ea95f7cb2c6f8fbbe1a15fbd7eeba642
parent08a8a7cf14595f95d5cbb28ef5c15c56a6255fb4
HID: microsoft: support the Surface Dial

The tool works nicely with hid-generic, but it ends up creating 9
different input nodes with most of them only having ABS_MISC set.

Filter the axis out, which reduces the amount of devices to 2. One is
the proper System Multi-axis collection, the other exported device
seems to provide SLEEP and POWER Key, not sure how one can trigger
those events though.

Filtering the ABS_X and ABS_Y axes also prevents udev to detect this as
a touchscreen.

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/hid-microsoft.c