> wacom_features is not shared exactly. Each interface has its own
> features but its value is initialized from a common value.
>
> What you need to do is figure out a way to touch up the values that do
> not make sense for a given interface. Normally, this is done in
> wacom_parse_hid() but in your case it probably needs to be done
> somewhere else (I'll help figure that out with you soon but for now
> just hardcode it in wacom_probe() somehow).
Ahh ok, I think I misunderstood why the code was failing when I tweaked the
wacom_features for the other interface. I have now done as you suggested and
it seems to work well.
> True, put you can check USB interface # in wacom_probe() and override
> pkglen there. Then you can base your settings in
> wacom_setup_input_capabilities() based on pktlen.
Yes, this works well.
> FYI: I realize this all looks kinda ugly. I'm working on some ideas
> on how to clean this up. As long as you get this working, I'll help
> clean it up.
So far everything works fine in evdev, but I am still having problems getting
the X driver to pick up the device.
Currently the interface with the buttons works (the L and R buttons on the
tablet work as left and right mouse buttons) however the stylus interface is
still being ignored.
I got the logging working with 'xinput set-prop device_name "Wacom Debug
Levels" 10 10' from your other e-mail and the correct events are logged:
[ 26093.031] (II) Wacom DTI520UB/L stylus (10:wcmReady): 1 numbers of data
[ 26093.031] (II) /dev/input/event13 (10:wcmReadPacket): fd=75
[ 26093.031] (II) /dev/input/event13 (1:wcmReadPacket): pos=0 remaining=256
[ 26093.031] (II) /dev/input/event13 (10:wcmReadPacket): buffer has 72 bytes
[ 26093.031] (II) /dev/input/event13 (10:usbParseEvent):
[ 26093.031] (II) /dev/input/event13 (10:usbParseEvent):
[ 26093.031] (II) /dev/input/event13 (10:usbParseEvent):
[ 26093.031] (II) /dev/input/event13 (6:usbDispatchEvents): 3 events received
[ 26093.031] (II) /dev/input/event13 (10:wcmEvent): channel = 0
[ 26093.031] (II) /dev/input/event13 (10:wcmEvent): c=0 i=0 t=0 s=1 x=3806
y=2352 b=0 p=0 rz=0 tx=0 ty=0 aw=0 aw2=0 rw=0 t=0 px=0 st=0 cs=0
[ 26093.031] (II) Wacom DTI520UB/L stylus (10:wcmReady): 0 numbers of data
[ 26093.031] (II) Wacom DTI520UB/L stylus (10:wcmDevReadInput): Read (1)
Yet "xinput test" doesn't display any events for the stylus interface. Any
ideas what I could be doing wrong?
$ xsetwacom --list devices
Wacom DTI520UB/L stylus id: 13 type: STYLUS
Wacom DTI520UB/L pad id: 14 type: PAD
$ xinput list-props 13
Device 'Wacom DTI520UB/L stylus':
Device Enabled (121): 1
Coordinate Transformation Matrix (123): 1.000000, 0.000000, 0.000000,
0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (245): 0
Device Accel Constant Deceleration (246): 1.000000
Device Accel Adaptive Deceleration (247): 1.000000
Device Accel Velocity Scaling (248): 10.000000
Device Node (620): "/dev/input/event13"
Wacom Tablet Area (621): 0, 0, 6282, 4762
Wacom Rotation (622): 0
Wacom Pressurecurve (623): 0, 0, 100, 100
Wacom Serial IDs (624): 58, 0, 2, 0
Wacom Serial ID binding (625): 0
Wacom Pressure Threshold (626): 27
Wacom Sample and Suppress (627): 2, 4
Wacom Enable Touch (628): 0
Wacom Hover Click (629): 1
Wacom Enable Touch Gesture (630): 0
Wacom Touch Gesture Parameters (631): 0, 0, 250
Wacom Tool Type (632): "STYLUS" (441)
Wacom Button Actions (633): "None" (0), "None" (0), "None" (0),
"None" (0), "None" (0), "None" (0), "None" (0)
Device Product ID (634): 1386, 58
Wacom Debug Levels (635): 0, 0
I am configuring the device like this in wacom_setup_input_capabilities():
case WACOM_DTI:
__clear_bit(ABS_MISC, input_dev->absbit);
switch (features->device_type) {
case BTN_TOOL_PEN:
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
__set_bit(BTN_STYLUS, input_dev->keybit);
__set_bit(BTN_STYLUS2, input_dev->keybit);
__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
break;
case 0:
__set_bit(BTN_BACK, input_dev->keybit);
__set_bit(BTN_FORWARD, input_dev->keybit);
__set_bit(BTN_LEFT, input_dev->keybit);
__set_bit(BTN_RIGHT, input_dev->keybit);
__set_bit(BTN_EXTRA, input_dev->keybit);
__set_bit(BTN_0, input_dev->keybit);
__set_bit(BTN_1, input_dev->keybit);
__set_bit(BTN_2, input_dev->keybit);
__set_bit(BTN_3, input_dev->keybit);
__set_bit(BTN_4, input_dev->keybit);
__clear_bit(BTN_TOUCH, input_dev->keybit);
break;
}
break;
Perhaps I am not setting something on the BTN_TOOL_PEN interface that I should
be.
> Maybe this will be helpful to understand what I'm thinking. I'm
> working on support for a wireless module that has 3 USB interfaces: A
> monitor interface (so you can detect when wireless tablet is
> connected), a pen interface, and a touch interface. To help out, I
> gave the device type a unique name (BAMBOO_WIRELESS) and then I set
> device_type to either 0, STYLUS, or DOUPLETAP (touch) depending on
> interface #. I also set pktlen when needed based on interface #.
>
> http://www.spinics.net/lists/linux-input/msg19345.html
>
> Between device_type and pkglen, I can tell what interface I'm running
> on without looking at interface # any more.
Thanks for the example, it was very helpful!
Cheers,
Adam.
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