[haiku-bugs] Re: [Haiku] #4847: Wacom Intuos not handled
- From: "Pete" <trac@xxxxxxxxxxxx>
- Date: Sun, 28 Sep 2014 00:28:08 -0000
#4847: Wacom Intuos not handled
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Reporter: Pete | Owner: stippi
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Drivers | Version: R1/alpha1
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 1 | Platform: All
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Comment (by Pete):
Attached a revised patch. Think/hope it matches the guidelines.
As I reduced some explanatory comments, I'll record the here for
reference:
{{{
Modifications to correct (original) Intuos functioning...
The critical point is that data[6] is used to signal use of the eraser,
as well as being the high bits of pressure. The indication is only valid
when the pen is *not* in contact with the tablet, so it must be retained
from the pre-touch state while the pen is in contact.
(Always) while not in contact:
If the pen end is lowermost data[6] = 1;
If the eraser end is down data[6] = 0, and pressure is strictly 0
data[9] (top 5 bits: 0x70..0xd0) indicates height above the tablet;
this is used to prevent pressure jitter giving false eraser state.
}}}
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Ticket URL: <https://dev.haiku-os.org/ticket/4847#comment:8>
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