On Thu, 20 Feb 2025, adr wrote:
So what do you think? Should a new axis be added to wscons only
for this? Should the z axis be used for pressure on these devices?
(and w for tilt?)
The Z axis could be setup as pressure at
sys/dev/hid/hidms.c:hidms_setup()
[...]
/* Try the wheel first as the Z activator since it's tradition. */
hl = hid_locate(desc,
size,
HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_WHEEL),
id,
[...]
/*
* The horizontal component of the scrollball can also be given by
* Application Control Pan in the Consumer page, so if we didnt see
* any Z then check that.
*/
if (!hl) {
hl = hid_locate(desc,
size,
HID_USAGE2(HUP_CONSUMER, HUC_AC_PAN),
id,
[...]
I could addd a similar block to check for HUD_TIP_PRESSURE after
that. If the device has a wheel the pressure wont be set as z.
Another solution could be proposed if someone encounters such a
device.
But the ws driver should be modified as Yorick did.
If there is no concense in the use of Z for tip pressure, there is
no point in taking the trouble of doing this.
Regards.
adr
