HID: wacom: generic: Add support for height, tilt, and twist usages

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The HID standard defines usages that allow digitizers to report the pen's
height, tilt, and rotation and which are used by Wacom's new "MobileStudio
Pro" devices.

Note that 'hidinput_calc_abs_res' expects ABS_Z (historically used by our
driver to report twist) to have linear units. To ensure it calculates a
resolution with the actually-angular units provided in the HID descriptor
we nedd to lie and tell it we're calculating it for the (rotational) ABS_RZ
axis instead.

Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

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Jason Gerecke 2016-10-19 18:03:42 -07:00 • committed by Jiri Kosina

parent f2209d4aef

commit 50066a042d

2 changed files with 29 additions and 2 deletions

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28

drivers/hid/wacom_wac.c

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3

include/linux/hid.h

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