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author | Jason Gerecke <killertofu@gmail.com> | 2017-08-05 01:35:14 +0300 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2017-08-08 11:10:26 +0300 |
commit | 8d411cbf46e515ca2b7ceb3d2b3f43e22813edac (patch) | |
tree | b19b1b5ab287b74ab24a2f1b7247b0aa72203943 /arch/ia64/include/asm/cacheflush.h | |
parent | b448cbead5054725aba13e897f8473caa19505b1 (diff) | |
download | linux-8d411cbf46e515ca2b7ceb3d2b3f43e22813edac.tar.xz |
HID: wacom: Do not completely map WACOM_HID_WD_TOUCHRINGSTATUS usage
The WACOM_HID_WD_TOUCHRINGSTATUS usage is a single bit which tells us
whether the touchring is currently in use or not. Because we need to
reset the axis value to 0 when the finger is removed, we call
'wacom_map_usage' to ensure that the required type/code values are
associated with the usage. The 'wacom_map_usage' also sets up the axis
range and resolution, however, which is not desired in this particular
case.
Although xf86-input-wacom doesn't do really do anything with the ring's
range or resolution, the libinput driver (for Wayland environments)
uses these values to provide proper angle indications to userspace.
Fixes: 60a2218698 ("HID: wacom: generic: add support for touchring")
Cc: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'arch/ia64/include/asm/cacheflush.h')
0 files changed, 0 insertions, 0 deletions