On Mon, 28 Oct 2024, Gerecke, Jason wrote: > From: Jason Gerecke <jason.gerecke@xxxxxxxxx> > > The tilt data contained in the Bluetooth packets of an Intuos Pro are > supposed to be interpreted as signed values. Simply casting the values > to type `char` is not guaranteed to work since it is implementation- > defined whether it is signed or unsigned. At least one user has noticed > the data being reported incorrectly on their system. To ensure that the > data is interpreted properly, we specifically cast to `signed char` > instead. > > Link: https://github.com/linuxwacom/input-wacom/issues/445 > Fixes: 4922cd26f03c ("HID: wacom: Support 2nd-gen Intuos Pro's Bluetooth classic interface") > CC: stable@xxxxxxxxxxxxxxx # 4.11+ > Signed-off-by: Jason Gerecke <jason.gerecke@xxxxxxxxx> I have added 'HID: ' prefix to the subject line and applied, thanks. -- Jiri Kosina SUSE Labs
