add support for Huion 0x006f (H950P T204)

[tequeter]

I've got this H950P with a new ProductId 0x006f. The strings are as follows:

• Product: Huion Tablet_H950P
• Firmware (string descriptor 201): HUION_T204_230821

This patch makes the buttons work in evtest and consequently in xsetwacom. They do not work in KDE's KCM, but that's another issue.

Stylus X/Y tilting also works. The resolution seems poor, but it might just be the hardware. I would have to try tilting with the proprietary driver to find out.

There are too many input devices created for the actual capabilities of the H950P, but that's probably a feature in case a new 0x006f model makes use of them. Of the 5 devices below, the last 3 are useless AFAIK:

/dev/input/event10:     HUION Huion Tablet_H950P
/dev/input/event11:     HUION Huion Tablet_H950P Pad
/dev/input/event12:     HUION Huion Tablet_H950P Touch Strip
/dev/input/event13:     HUION Huion Tablet_H950P Dial
/dev/input/event14:     HUION Huion Tablet_H950P

And lastly, I skipped USB_DEVICE_ID_HUION_TABLET3 as it is claimed by #623 and #644 already.

[JoseExposito]

Hi @tequeter,

I plan to create a DIGImend release (v13) this weekend with the changes already in master and I'd like to include the new product ID for your tablet (0x006f) as well as https://github.com/DIGImend/digimend-kernel-drivers/pull/685 (0x0064).

This should allow us to get some actual testing (and bug reports) before we send the patches to the upstream kernel.

The upstream kernel requires a Signed-off-by: Name <your@email.com> line at the end of the commit message. Could you add it, please? Or just add a comment and I'll add it to your commit.

Thanks!

[tequeter]

Hello @JoseExposito,

Great! I rebased, and updated the commit with:

• HID: uclogic: prefix.
• Link to this PR.
• Sign-off.

Do you want to keep the USB_DEVICE_ID_HUION_TABLET3 gap?

NB: I do not own the H950P anymore, I returned it for a H1061P (#679) instead.

Thomas