XP-Pen Artist 12 Diagnostics

[zenny]

Hi,

Please find below the diagnostics of XP-Pen Artist 12 to make things easier to make work with DIGImend driver as described in #554. The diagnostics follow suit to the details in https://digimend.github.io/support/howto/trbl/diagnostics/.

1Product page with proprietary linux driver: https://www.xp-pen.com/download-68.html

$ lsusb
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 003: ID 045e:00b0 Microsoft Corp. Digital Media Pro Keyboard
Bus 009 Device 002: ID 045e:0083 Microsoft Corp. Basic Optical Mouse
Bus 009 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 005: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 003 Device 004: ID 413c:301a Dell Computer Corp. Dell MS116 USB Optical Mouse
Bus 003 Device 003: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 002: ID 1a2c:405e China Resource Semico Co., Ltd USB Keyboard
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 28bd:080a UGTABLET 11.6 inch PenDisplay
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

The tablet is Bus 001 Device 003: ID 28bd:080a UGTABLET 11.6 inch PenDisplay

2. Descriptors.txt (http://ix.io/3whe)

$ T=28bd:080a
$ sudo lsusb -v -d $T > descriptors.txt
Password:
can't get debug descriptor: Resource temporarily unavailable
$ cat descriptors.txt

Bus 001 Device 003: ID 28bd:080a UGTABLET 11.6 inch PenDisplay
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x28bd
  idProduct          0x080a
  bcdDevice            0.00
  iManufacturer           1 UGTABLET
  iProduct                2 11.6 inch PenDisplay
  iSerial                 3
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x005b
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower               70mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      2 Mouse
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength     139
         Report Descriptors:
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval               4
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      2 Mouse
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength     196
         Report Descriptors:
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      0
      bInterfaceProtocol      0
      iInterface              0
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      36
         Report Descriptors:
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               3
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval              10
Device Status:     0x0000
  (Bus Powered)

3. HID Descriptors (http://ix.io/3whf)

$ sudo usbhid-dump -ed -m $T > hid_report_descriptors.txt
$ cat hid_report_descriptors.txt
001:003:002:DESCRIPTOR         1629217899.727540
 06 0A FF 09 01 A1 01 85 02 09 02 75 08 95 09 15
 00 26 FF 00 81 02 09 03 75 08 95 07 15 00 26 FF
 00 91 02 C0

001:003:001:DESCRIPTOR         1629217899.733182
 05 0D 09 02 A1 01 85 07 09 20 A1 00 09 42 09 44
 09 45 09 3C 09 32 15 00 25 01 75 01 95 05 81 02
 95 03 81 03 05 01 09 30 15 00 27 20 64 00 00 55
 0D 65 13 35 00 47 20 64 00 00 75 10 95 01 81 02
 09 31 15 00 27 52 38 00 00 55 0D 65 13 35 00 47
 52 38 00 00 75 10 95 01 81 02 05 0D 09 30 15 00
 26 FF 1F 75 10 95 01 81 02 C0 C0 09 0E A1 01 85
 05 09 23 A1 02 09 52 09 53 25 0A 75 08 95 02 B1
 02 C0 C0 05 0C 09 36 A1 00 85 06 05 09 19 01 29
 20 15 00 25 01 95 20 75 01 81 02 C0 05 01 09 06
 A1 01 85 03 05 07 19 E0 29 E7 15 00 25 01 75 01
 95 08 81 02 05 07 19 00 29 FF 26 FF 00 75 08 95
 06 81 00 C0

001:003:000:DESCRIPTOR         1629217899.738226
 05 01 09 02 A1 01 85 08 09 01 A1 00 05 09 19 01
 29 03 15 00 25 01 95 03 75 01 81 02 95 05 81 01
 05 01 09 30 09 31 09 38 09 00 15 81 25 7F 75 08
 95 04 81 06 C0 C0 05 01 09 02 A1 01 85 09 09 01
 A1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01
 81 02 95 05 81 01 05 01 09 30 09 31 26 FF 7F 95
 02 75 10 81 02 05 0D 09 30 26 FF 1F 95 01 75 10
 81 02 C0 C0 05 01 09 00 A1 01 85 01 A1 00 26 FF
 00 09 00 75 08 95 07 B1 02 C0 C0

4. UCLOGIC-probe (http://ix.io/3whg)

$ sudo uclogic-probe 1 3 | tee probe.txt
M 55 00 47 00 54 00 41 00 42 00 4C 00 45 00 54 00
P 31 00 31 00 2E 00 36 00 20 00 69 00 6E 00 63 00 68 00 20 00 50 00 65 00 6E 00 44 00 69 00 73 00 70 00 6C 00 61 00 79 00
S 64 0C 03 20 64 52 38 03 00 FF 1F EC 09
S 65 04 03 00 74
S 6E 04 03 30 00
S 79 0A 03 56 00 31 00 2E 00 31 00
S 7A 0A 03 56 00 31 00 2E 00 31 00
S 7B 0A 03 56 00 31 00 2E 00 31 00
S C8 0A 03 56 00 31 00 2E 00 31 00
S C9 0A 03 56 00 31 00 2E 00 31 00
S CA 0A 03 56 00 31 00 2E 00 31 00

5. Frame Wheel Scrolling (http://ix.io/3whi):

$ sudo usbhid-dump -es -m $T | tee frame_wheel_srolling.txt
Starting dumping interrupt transfer stream
with 1 minute timeout.

001:003:001:STREAM             1629218011.757972
 07 C0 F5 36 A3 1C 00 00

001:003:001:STREAM             1629218013.727831
 03 01 2E 00 00 00 00 00

...

6. Pen coordinates http://ix.io/3whj:

$ sudo usbhid-dump -es -m $T | tee pen_coords.txt
$ cat pen_coords.txt
001:003:001:STREAM             1629219386.149375
 07 98 97 03 E7 35 00 00

001:003:001:STREAM             1629219389.159478
 07 90 A0 28 92 1E 00 00

001:003:001:STREAM             1629219389.164102
 07 90 A0 28 92 1E 00 00
...

7. Pen tilt angles (http://ix.io/3who)
   $ sudo usbhid-dump -es -m $T | tee pen_tilt.txt

8. Pen pressure (http://ix.io/3whq)
   $ sudo usbhid-dump -es -m $T | tee pen_pressure.txt

9. Pen buttons (http://ix.io/3whr)
   $ sudo usbhid-dump -es -m $T | tee pen_buttons.txt

10. No Frame dials
    $ sudo usbhid-dump -es -m $T | tee frame_dials.txt

11. Frame buttons (http://ix.io/3whs)
    $ sudo usbhid-dump -es -m $T | tee frame_buttons.txt

[kurikaesu]

Could you look at my comment here #535 (comment) and do the same for your Artist 12? Reply in this issue of course 😄

[zenny]

Could you look at my comment here #535 (comment) and do the same for your Artist 12? Reply in this issue of course smile

@kurikaesu Thanks for pointing to a possible solution. However, with an upgrade to the latest kernel (v5.4.142) appears to have the libwacom support to the tablet by default, but it fails to detect physical buttons on the tablet itself, fyi, though libinput record records the events.

Most surprisingly, xinput list does not detect the "keyboard" part of the tablet (most reasonably the physical buttons on the pad),

$ xinput list | grep UG
⎜   ↳ UGTABLET 11.6 inch PenDisplay Mouse touch id=8    [slave  pointer  (2)]
⎜   ↳ UGTABLET 11.6 inch PenDisplay stylus      id=9    [slave  pointer  (2)]
⎜   ↳ UGTABLET 11.6 inch PenDisplay pad         id=10   [slave  pointer  (2)]
⎜   ↳ UGTABLET 11.6 inch PenDisplay eraser      id=16   [slave  pointer  (2)]

But, libinput record detects the keyboard component of the pad and the key presses, too (details in http://ix.io/3xbL):

$ libinput record
Available devices:
/dev/input/event2:      UGTABLET 11.6 inch PenDisplay Mouse
/dev/input/event3:      UGTABLET 11.6 inch PenDisplay
/dev/input/event4:      UGTABLET 11.6 inch PenDisplay
/dev/input/event5:      UGTABLET 11.6 inch PenDisplay Keyboard

Just confused!

[kurikaesu]

This is what I'm trying to help you fix by getting you to do the key handshake and dump of probe information.
The libwacom support will only work for the stylus/digitizer because the pad buttons are outputting keyboard events. If you want the pads buttons to work with libwacom then a driver like digimend needs to re-interpret the keyboard to pad buttons.

I do not know if the Artist 12 requires the activation key being sent to the correct interface and this can only really be confirmed by installing the proprietary linux drivers, changing the pad-keys to a custom binding and then capturing the USB packets using something like wireshark. From the captures we can inspect if the proprietary drivers are sending a 02b00400000000000000 or equivalent to the device and forcing it into a "uniform interface mode".

This is why I suggested following what I had written in #535 to help debug the issue, or if you want to check if you actually need the activation key then doing the wireshark dump is the right avenue.

Either way, once we know your tablet requires an activation key or not will help determine how to move forward.

[zenny]

This is what I'm trying to help you fix by getting you to do the key handshake and dump of probe information.

So nice of you!

The libwacom support will only work for the stylus/digitizer because the pad buttons are outputting keyboard events. If you want the pads buttons to work with libwacom then a driver like digimend needs to re-interpret the keyboard to pad buttons.

Do you mean that I still need to compile digimend to make the pad buttons to work?

I do not know if the Artist 12 requires the activation key being sent to the correct interface and this can only really be confirmed by installing the proprietary linux drivers, changing the pad-keys to a custom binding and then capturing the USB packets using something like wireshark. From the captures we can inspect if the proprietary drivers are sending a 02b00400000000000000 or equivalent to the device and forcing it into a "uniform interface mode".

This is why I suggested following what I had written in #535 to help debug the issue,

As your advice, I created:

#! /usr/bin/env python3
# https://github.com/DIGImend/digimend-kernel-drivers/issues/535#issuecomment-903189712

import usb.core
import usb.util

dev = usb.core.find(idVendor=0x28bd, idProduct=0x080a)

if dev.is_kernel_driver_active(2):
    dev.detach_kernel_driver(2)

cfg = dev.get_active_configuration()
intf = cfg[(2,0)]
ei = intf[0]
eo = intf[1]

eo.write(bytes.fromhex('02b00400000000000000'))

while(True):
    print(''.join(format(x, '02x') for x in ei.read(12)))

But the process died immediately without me pressing any buttons, fyi.

]$ sudo python ./keyboard-debug.py
02b10400000000000000
Traceback (most recent call last):
  File "/home/zenny/Downloads/xp-pen-diagnostics/./keyboard-debug.py", line 20, in <module>
    print(''.join(format(x, '02x') for x in ei.read(12)))
  File "/usr/lib/python3.9/site-packages/usb/core.py", line 423, in read
    return self.device.read(self, size_or_buffer, timeout)
  File "/usr/lib/python3.9/site-packages/usb/core.py", line 1029, in read
    ret = fn(
  File "/usr/lib/python3.9/site-packages/usb/backend/libusb1.py", line 864, in intr_read
    return self.__read(self.lib.libusb_interrupt_transfer,
  File "/usr/lib/python3.9/site-packages/usb/backend/libusb1.py", line 954, in __read
    _check(retval)
  File "/usr/lib/python3.9/site-packages/usb/backend/libusb1.py", line 602, in _check
    raise USBTimeoutError(_strerror(ret), ret, _libusb_errno[ret])
usb.core.USBTimeoutError: [Errno 110] Operation timed out

or if you want to check if you actually need the activation key then doing the wireshark dump is the right avenue.

Either way, once we know your tablet requires an activation key or not will help determine how to move forward.

[kurikaesu]

Alright, from the response of the keyboard-debug.py it looks like your Artist 12 responds the same was as my Artist 13.3 Pro (and other Pro tablets).

The reponse of 02b10400000000000000 indicates that the tablet does have an unlock key and the unlock key we used 02b00400000000000000 was correct.

All of that USBTimeout error is fine, it is expected.

What you will need to do is re-run the keyboard-debug.py and get it to spit out 02b10400000000000000 again and allow it to exit/fail out. Once it has failed out, then run the steps after the heading Collect raw input samples: http://digimend.github.io/support/howto/trbl/diagnostics/

Having used the unlock key prior, the streams should start producing events on the 02 interface like:
02 f0 00 00 04 00 00 00 00 13.

We will need to get data for all of the tablet. You can see what information is most important for me here under the headings where it says USB Packets - interface 2 (There is one section for the pen/digitizer and another for the frame buttons/express keys): https://github.com/kurikaesu/DIGImend-research/blob/main/xp-pen-13.3-and-12-pro.md

Once you have that information in hand and can add it as a comment here, I should be able to write a digimend driver very quickly to support your tablet.

[zenny]

Alright, from the response of the keyboard-debug.py it looks like your Artist 12 responds the same was as my Artist 13.3 Pro (and other Pro tablets).

The reponse of 02b10400000000000000 indicates that the tablet does have an unlock key and the unlock key we used 02b00400000000000000 was correct.

All of that USBTimeout error is fine, it is expected.

What you will need to do is re-run the keyboard-debug.py and get it to spit out 02b10400000000000000 again and allow it to exit/fail out. Once it has failed out, then run the steps after the heading Collect raw input samples: http://digimend.github.io/support/howto/trbl/diagnostics/

Do you need usbhid-dump or something else from tcpdump?

Having used the unlock key prior, the streams should start producing events on the 02 interface like:
02 f0 00 00 04 00 00 00 00 13.

We will need to get data for all of the tablet. You can see what information is most important for me here under the headings where it says USB Packets - interface 2 (There is one section for the pen/digitizer and another for the frame buttons/express keys): https://github.com/kurikaesu/DIGImend-research/blob/main/xp-pen-13.3-and-12-pro.md

Once you have that information in hand and can add it as a comment here, I should be able to write a digimend driver very quickly to support your tablet.

Makes me feel better than the manufacturer's support! 👍 Thanks again.

[zenny]

@kurikaesu As you have asked for raw data outpute after the reponse of 02b10400000000000000 as follows:
frame_wheel_scrolling.txt http://ix.io/3xfE
pen_coords.txt http://ix.io/3xfG
pen_tilt.txt http://ix.io/3xfH
pen_pressure.txt http://ix.io/3xfI
pen_buttons.txt http://ix.io/3xfJ
frame_dials.txt http://ix.io/3xfK (only scroll strip, has no 'frame dial')
frame_buttons.txt http://ix.io/3xfL (also scrolled on the scroll strip in the middle)

Meanwhile, I am attaching the frame_buttons1.txt in which I just pressed the 6 buttons on the tablet (four STREAMS per key press and release) as follows:

frame_buttons1.txt http://ix.io/3xgn (no middle finger slider pressed. Hope this could be helpful.

[kurikaesu]

WOW, the raw data you are recording is very unique.
It appears that your tablet is producing two outputs for each action. Let's take the frame buttons for example.
It is sending the frame button message on the 02 interface as well as the 03 interface.

02 is a 10 byte interface and from the looks of the messages, apart from the touch/scroll strip has an identical structure as my 22R pro. I could probably quickly write something to support your tablet apart from the touch strip as the touch strip appears to only provide two unique messages: 01 2D and 01 2E. I'd have to know which of these messages correspond to a swipe up or down and if it doesn't matter where the swipes start from.

[nic3-14159]

@kurikaesu The tablet sending reports on both interfaces is indicative of the wrong key packet being sent. I have found that tablets send the 02b10... response even if the key packet is incorrect. It seems like as long as the key starts with 02b0 it sends a response, but the value of the next byte is the actual key.

@zenny Could you try the script from the link below and paste the results? Make sure you hold the pen to the tablet surface while running the program. If you see a line that starts with "Key is 0x" could you also collect diagnostics afterwards and post the results?

https://github.com/nic3-14159/uclogic-new-init/blob/base/uclogic_new_init.py

[zenny]

@kurikaesu The tablet sending reports on both interfaces is indicative of the wrong key packet being sent. I have found that tablets send the 02b10... response even if the key packet is incorrect. It seems like as long as the key starts with 02b0 it sends a response, but the value of the next byte is the actual key.

@zenny Could you try the script from the link below and paste the results? Make sure you hold the pen to the tablet surface while running the program. If you see a line that starts with "Key is 0x" could you also collect diagnostics afterwards and post the results?

https://github.com/nic3-14159/uclogic-new-init/blob/base/uclogic_new_init.py

@nic3-14159 Thanks.

Here is the output:

$ sudo python ./uclogic_new_init.py 28bd:080a
Please hold the pen on the tablet surface while running this program.
Press Enter to continue
Trying init packet 0x02B00200000000000000:
Received 02B10200000000000000
Key is 0x02B00200000000000000, interface 2, endpoint 0x03

Fyi, after running the script, the libwacom and libinput stopped detecting the tablet and stopped working completely:

# xinput list | grep UG
# lsusb | grep UG
Bus 003 Device 002: ID 28bd:080a UGTABLET 11.6 inch PenDisplay

[zenny]

WOW, the raw data you are recording is very unique.
It appears that your tablet is producing two outputs for each action. Let's take the frame buttons for example.
It is sending the frame button message on the 02 interface as well as the 03 interface.

02 is a 10 byte interface and from the looks of the messages, apart from the touch/scroll strip has an identical structure as my 22R pro. I could probably quickly write something to support your tablet apart from the touch strip as the touch strip appears to only provide two unique messages: 01 2D and 01 2E. I'd have to know which of these messages correspond to a swipe up or down and if it doesn't matter where the swipes start from.

@kurikaesu. Thanks. Please find the debug outputs by scrolling DOWN and UP on the touchstrip on the tablet:

frame_buttons-TOUCHSTRIP-DOWN.txt http://ix.io/3xhE
frame_buttons-TOUCHSTRIP-UP.txt http://ix.io/3xhF

Will that help?

[nic3-14159]

@zenny libwacom and libinput not detecting the tablet anymore after running my script is expected, it does that with a different XP-Pen tablet I have. Usbhid-dump should still work though.

Could you also collect and post the raw data samples after running my script? Sorry about all the dumps we're asking you to do, I hope you don't mind.

[zenny]

@zenny libwacom and libinput not detecting the tablet anymore after running my script is expected, it does that with a different XP-Pen tablet I have. Usbhid-dump should still work though.

Could you also collect and post the raw data samples after running my script?

The usbhid-dump above in #556 (comment) is after running your script.

Sorry about all the dumps we're asking you to do, I hope you don't mind.

Never mind. Do you suggest me to redo all the diagnostics again after running your script?

[zenny]

@zenny libwacom and libinput not detecting the tablet anymore after running my script is expected, it does that with a different XP-Pen tablet I have. Usbhid-dump should still work though.
Could you also collect and post the raw data samples after running my script?

The usbhid-dump above in #556 (comment) is after running your script.

Sorry about all the dumps we're asking you to do, I hope you don't mind.

Never mind. Do you suggest me to redo all the diagnostics again after running your script?

Prior to running your script:

$ grep "Using input driver 'wacom'" /var/log/Xorg.0.log
[    76.676] (II) Using input driver 'wacom' for 'UGTABLET 11.6 inch PenDisplay Mouse'
[    76.812] (II) Using input driver 'wacom' for 'UGTABLET 11.6 inch PenDisplay'
[    76.836] (II) Using input driver 'wacom' for 'UGTABLET 11.6 inch PenDisplay'
[    76.860] (II) Using input driver 'wacom' for 'UGTABLET 11.6 inch PenDisplay Keyboard'
[    76.958] (II) Using input driver 'wacom' for 'UGTABLET 11.6 inch PenDisplay eraser'

The keyboard is not shown either by xinput:

$ xinput list | grep UG
⎜   ↳ UGTABLET 11.6 inch PenDisplay Mouse touch id=8    [slave  pointer  (2)]
⎜   ↳ UGTABLET 11.6 inch PenDisplay stylus      id=9    [slave  pointer  (2)]
⎜   ↳ UGTABLET 11.6 inch PenDisplay pad         id=10   [slave  pointer  (2)]
⎜   ↳ UGTABLET 11.6 inch PenDisplay eraser      id=16   [slave  pointer  (2)]

nor by xsetwacom:

$ xsetwacom list devices
UGTABLET 11.6 inch PenDisplay Mouse touch       id: 8   type: TOUCH
UGTABLET 11.6 inch PenDisplay stylus    id: 9   type: STYLUS
UGTABLET 11.6 inch PenDisplay pad       id: 10  type: PAD
UGTABLET 11.6 inch PenDisplay eraser    id: 16  type: ERASER

Then I ran your script from https://github.com/nic3-14159/uclogic-new-init/raw/base/uclogic_new_init.py:

$ T=28bd:080a
$ sudo python3 ./uclogic_new_init.py $T
Password:
Please hold the pen on the tablet surface while running this program.
Press Enter to continue
Trying init packet 0x02B00200000000000000:
Received 02B10200000000000000
Key is 0x02B00200000000000000, interface 2, endpoint 0x03

Here comes the raw diagnostics capture after running your script with -nic suffix:

frame_wheel_srolling-nic.txt http://ix.io/3xme
pen_coords-nic.txt http://ix.io/3xmh
pen_tilt-nic.txt http://ix.io/3xmj
pen_pressure-nic.txt http://ix.io/3xml
pen_buttons-nic.txt http://ix.io/3xmm
frame_dials-UP-nic.txt http://ix.io/3xmn (scrolling from down to upward in touch strip)
frame_dials-DOWN-nic.txt http://ix.io/3xmo (scrolling from up to downward in touch strip)
frame_buttons-nic.txt http://ix.io/3xmq

Is the above something usable?

[nic3-14159]

@zenny Yes, those are usable. Events are no longer being sent on multiple interfaces, and the touch strip reports also appear to be a lot more reasonable. Thanks for posting!

@kurikaesu It looks like the touch strip now reports bitmap dial events instead of the keyboard events, so it should be pretty easy to get it working.

[kurikaesu]

Yeah the new reports look practically identical to the 22R other than that there is no support for tilt. The product site also confirms the absence of tilt: https://www.xp-pen.com/product/64.html

I've added support to the tablet in my PR here: #557

Please let me know if it does or doesn't work.

[zenny]

Yeah the new reports look practically identical to the 22R other than that there is no support for tilt. The product site also confirms the absence of tilt: https://www.xp-pen.com/product/64.html

I've added support to the tablet in my PR here: #557

Please let me know if it does or doesn't work.

@kurikaesu it did not work (even stylus pen failed to work), despite I appended the USBID (28bd:080a) into line 26 xorg.org in your source (git clone -b xppen-artist22r-pro https://github.com/kurikaesu/digimend-kernel-drivers.git) to look like before compiling:

	MatchUSBID "28bd:007[1458]|28bd:0094|28bd:0042|28bd:080a|5543:004[57]|5543:0081|5543:0004|5543:3031"

But this time it failed not only the buttons, but even stylus stopped working at all. Outputs after reboot :(

$ uname -r
5.4.142_1

$ grep "Using input driver 'wacom'" /var/log/Xorg.0.log
[    49.559] (II) Using input driver 'wacom' for 'UGTABLET 11.6 inch PenDisplay Pen'
[    49.581] (II) Using input driver 'wacom' for 'UGTABLET 11.6 inch PenDisplay Pad'

$ lsmod| grep hid_
hid_uclogic            36864  0
hid_generic            16384  0
usbhid                 53248  1 hid_uclogic
hid                   131072  4 usbhid,hid_uclogic,hid_generic,uhid
usbcore               266240  10 xhci_hcd,ohci_hcd,ehci_pci,usbhid,hid_uclogic,usbkbd,ehci_hcd,usbmouse,xhci_pci,ohci_pci

$ libinput record
Available devices:
/dev/input/event2:      UGTABLET 11.6 inch PenDisplay Pen
/dev/input/event3:      UGTABLET 11.6 inch PenDisplay Pad
Select the device event number: ^C

$ xinput list | grep UG
⎜   ↳ UGTABLET 11.6 inch PenDisplay Pen stylus  id=8    [slave  pointer  (2)]
⎜   ↳ UGTABLET 11.6 inch PenDisplay Pad pad     id=9    [slave  pointer  (2)]

$ xsetwacom list
UGTABLET 11.6 inch PenDisplay Pad pad   id: 8   type: PAD
UGTABLET 11.6 inch PenDisplay Pen stylus        id: 9   type: STYLUS

dmesg shows:

$ sudo dmesg | grep "28BD"
[    2.329214] input: UGTABLET 11.6 inch PenDisplay Mouse as /devices/pci0000:00/0000:00:04.0/0000:02:00.0/usb2/2-1/2-1:1.0/0003:28BD:080A.0001/input/input3
[    2.329283] hid-generic 0003:28BD:080A.0001: input,hidraw0: USB HID v1.00 Mouse [UGTABLET 11.6 inch PenDisplay] on usb-0000:02:00.0-1/input0
[    2.329542] input: UGTABLET 11.6 inch PenDisplay as /devices/pci0000:00/0000:00:04.0/0000:02:00.0/usb2/2-1/2-1:1.1/0003:28BD:080A.0002/input/input4
[    2.329595] input: UGTABLET 11.6 inch PenDisplay as /devices/pci0000:00/0000:00:04.0/0000:02:00.0/usb2/2-1/2-1:1.1/0003:28BD:080A.0002/input/input5
[    2.329621] input: UGTABLET 11.6 inch PenDisplay Keyboard as /devices/pci0000:00/0000:00:04.0/0000:02:00.0/usb2/2-1/2-1:1.1/0003:28BD:080A.0002/input/input6
[    2.381136] hid-generic 0003:28BD:080A.0002: input,hiddev0,hidraw1: USB HID v1.00 Keyboard [UGTABLET 11.6 inch PenDisplay] on usb-0000:02:00.0-1/input1
[    2.381268] hid-generic 0003:28BD:080A.0003: hiddev1,hidraw2: USB HID v1.00 Device [UGTABLET 11.6 inch PenDisplay] on usb-0000:02:00.0-1/input2
[    2.387150] uclogic 0003:28BD:080A.0001: interface is invalid, ignoring
[    2.415162] uclogic 0003:28BD:080A.0002: interface is invalid, ignoring
[    2.418531] input: UGTABLET 11.6 inch PenDisplay Pen as /devices/pci0000:00/0000:00:04.0/0000:02:00.0/usb2/2-1/2-1:1.2/0003:28BD:080A.0003/input/input7
[    2.418594] input: UGTABLET 11.6 inch PenDisplay Pad as /devices/pci0000:00/0000:00:04.0/0000:02:00.0/usb2/2-1/2-1:1.2/0003:28BD:080A.0003/input/input8
[    2.418642] uclogic 0003:28BD:080A.0003: input,hidraw0: USB HID v1.00 Keypad [UGTABLET 11.6 inch PenDisplay] on usb-0000:02:00.0-1/input2
[   11.574375] uclogic 0003:28BD:080A.0002: interface is invalid, ignoring
[   11.574566] uclogic 0003:28BD:080A.0001: interface is invalid, ignoring
[ 1239.366852] uclogic 0003:28BD:080A.000A: interface is invalid, ignoring
[ 1239.392897] uclogic 0003:28BD:080A.000B: interface is invalid, ignoring
[ 1239.420230] input: UGTABLET 11.6 inch PenDisplay Pen as /devices/pci0000:00/0000:00:04.0/0000:02:00.0/usb2/2-1/2-1:1.2/0003:28BD:080A.000C/input/input30
[ 1239.472428] input: UGTABLET 11.6 inch PenDisplay Pad as /devices/pci0000:00/0000:00:04.0/0000:02:00.0/usb2/2-1/2-1:1.2/0003:28BD:080A.000C/input/input31
[ 1239.472772] uclogic 0003:28BD:080A.000C: input,hidraw0: USB HID v1.00 Keypad [UGTABLET 11.6 inch PenDisplay] on usb-0000:02:00.0-1/input2
[ 1239.528547] uclogic 0003:28BD:080A.000B: interface is invalid, ignoring
[ 1239.529612] uclogic 0003:28BD:080A.000A: interface is invalid, ignoring

[kurikaesu]

I'll need to figure out what is going on with the stylus but for the pad buttons themselves, could you run libinput record and pick the device and press buttons?

I want to know if the buttons themselves are at least registering events with libinput.

[zenny]

I'll need to figure out what is going on with the stylus but for the pad buttons themselves, could you run libinput record and pick the device and press buttons?

I want to know if the buttons themselves are at least registering events with libinput.

Actually, pressing the buttons on the pad were unresponsive to libinput record. However, choosing the pad gave the following ouptut:

$ libinput record
Available devices:
/dev/input/event2:      UGTABLET 11.6 inch PenDisplay Pen
/dev/input/event3:      UGTABLET 11.6 inch PenDisplay Pad
Select the device event number: 3
Recording to 'stdout'.
# libinput record
version: 1
ndevices: 1
libinput:
  version: "1.18.1"
  git: "unknown"
system:
kernel: "5.4.142_1"
dmi: "dmi:bvnAwardSoftwareInternational,Inc.:bvrF8:bd03/30/2012:svnGigabyteTechnologyCo.,Ltd.:pnGA-970A-D3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-970A-D3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:"
devices:
- node: /dev/input/event3
  evdev:
    # Name: UGTABLET 11.6 inch PenDisplay Pad
    # ID: bus 0x3 vendor 0x28bd product 0x80a version 0x100
    # Supported Events:
    # Event type 0 (EV_SYN)
    # Event type 1 (EV_KEY)
    #   Event code 256 (BTN_0)
    #   Event code 257 (BTN_1)
    #   Event code 258 (BTN_2)
    #   Event code 259 (BTN_3)
    #   Event code 260 (BTN_4)
    #   Event code 261 (BTN_5)
    #   Event code 262 (BTN_6)
    #   Event code 263 (BTN_7)
    # Event type 2 (EV_REL)
    #   Event code 8 (REL_WHEEL)
    #   Event code 11 (REL_WHEEL_HI_RES)
    # Event type 4 (EV_MSC)
    #   Event code 4 (MSC_SCAN)
    # Properties:
    name: "UGTABLET 11.6 inch PenDisplay Pad"
    id: [3, 10429, 2058, 256]
    codes:
      0: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15] # EV_SYN
      1: [256, 257, 258, 259, 260, 261, 262, 263] # EV_KEY
      2: [8, 11] # EV_REL
      4: [4] # EV_MSC
    properties: []
  hid: [
    0x05, 0x0d, 0x09, 0x02, 0xa1, 0x01, 0x85, 0x02, 0x09, 0x20, 0xa0, 0x14, 0x25, 0x01, 0x09, 0x42,
    0x09, 0x44, 0x09, 0x46, 0x75, 0x01, 0x95, 0x03, 0x81, 0x02, 0x95, 0x02, 0x81, 0x01, 0x09, 0x32,
    0x95, 0x01, 0x81, 0x02, 0x95, 0x02, 0x81, 0x01, 0x75, 0x10, 0x95, 0x01, 0xa4, 0x05, 0x01, 0x55,
    0xfd, 0x65, 0x13, 0x34, 0x09, 0x30, 0x27, 0x20, 0x64, 0x00, 0x00, 0x47, 0x6b, 0x27, 0x00, 0x00,
    0x81, 0x02, 0x09, 0x31, 0x27, 0x52, 0x38, 0x00, 0x00, 0x47, 0x2c, 0x16, 0x00, 0x00, 0x81, 0x02,
    0xb4, 0x09, 0x30, 0x27, 0xff, 0x1f, 0x00, 0x00, 0x81, 0x02, 0xa4, 0x54, 0x65, 0x14, 0x35, 0xc3,
    0x45, 0x3c, 0x15, 0xc3, 0x25, 0x3c, 0x75, 0x08, 0x95, 0x02, 0x09, 0x3d, 0x09, 0x3e, 0x81, 0x02,
    0xb4, 0xc0, 0xc0, 0x05, 0x01, 0x09, 0x07, 0xa1, 0x01, 0x85, 0xf7, 0x05, 0x0d, 0x09, 0x39, 0xa0,
    0x14, 0x25, 0x01, 0x75, 0x01, 0x95, 0x08, 0x81, 0x01, 0x05, 0x09, 0x19, 0x01, 0x29, 0x08, 0x95,
    0x08, 0x81, 0x02, 0x95, 0x20, 0x81, 0x01, 0x05, 0x01, 0x09, 0x38, 0x75, 0x08, 0x95, 0x01, 0x15,
    0xff, 0x25, 0x08, 0x81, 0x06, 0x75, 0x01, 0x95, 0x16, 0x81, 0x01, 0xc0, 0xc0
  ]
  udev:
    properties:
    - ID_INPUT=1
    - ID_INPUT.tags=seat0
    - ID_INPUT_KEY=1
    - LIBINPUT_DEVICE_GROUP=3/28bd/80a:usb-0000:02:00.0-1
  quirks:
  events:
  # Current time is 08:32:32
^C%

I killed the process because there was no response to button presses, fyi.