[Wayland-bugs] [Bug 89211] Freescale Sabre Smart touch screen does not work with libinput+weston

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89211

--- Comment #2 from Dario Freddi <drf54321 at gmail.com> ---
Further investigation, I found out the failure happens when checking for mtdev
slots.

if (device->mtdev->caps.slot.minimum < 0 || num_slots <= 0)

caps.slot.minimum and num_slots are both 0.

Running evemu-record with multitouch events, I get this for the first finger:

E: 9.378526 0003 0039 0000      # EV_ABS / ABS_MT_TRACKING_ID   0
E: 9.378526 0003 0030 0001      # EV_ABS / ABS_MT_TOUCH_MAJOR   1
E: 9.378526 0003 0035 12176     # EV_ABS / ABS_MT_POSITION_X    12176
E: 9.378526 0003 0036 4416      # EV_ABS / ABS_MT_POSITION_Y    4416
E: 9.378526 0000 0002 0000      # ++++++++++++ SYN_MT_REPORT (0) ++++++++++
E: 9.378526 0000 0000 0000      # ------------ SYN_REPORT (0) ----------

And this for the second finger:

E: 40.668868 0003 0039 0001     # EV_ABS / ABS_MT_TRACKING_ID   1
E: 40.668868 0003 0030 0001     # EV_ABS / ABS_MT_TOUCH_MAJOR   1
E: 40.668868 0003 0035 10944    # EV_ABS / ABS_MT_POSITION_X    10944
E: 40.668868 0003 0036 5824     # EV_ABS / ABS_MT_POSITION_Y    5824
E: 40.668868 0000 0002 0000     # ++++++++++++ SYN_MT_REPORT (0) ++++++++++
E: 40.668868 0000 0000 0000     # ------------ SYN_REPORT (0) ----------

mtdev-test:

# mtdev-test /dev/input/event0 
supported mt events:
   ABS_MT_TOUCH_MAJOR
   ABS_MT_WIDTH_MAJOR
   ABS_MT_POSITION_X
   ABS_MT_POSITION_Y
   ABS_MT_TRACKING_ID
014bacc41bed 00 3 0030 1
014bacc41bed 00 3 0035 12176
014bacc41bed 00 3 0036 13632
014bacc41bed 00 3 0039 0
014bacc41bed 00 0 0000 0
014bacc41cea 01 3 002f 1
014bacc41cea 01 3 0030 1
014bacc41cea 01 3 0035 10080
014bacc41cea 01 3 0036 7488
014bacc41cea 01 3 0039 1
014bacc41cea 01 0 0000 0

The two events are with two different fingers.

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