On 11/23/21 03:15, Christian Helmuth wrote:
Hi John,
On Mon, Nov 22, 2021 at 19:19:01 CET, John J. Karcher wrote:
I was just wondering if anyone has had the itch to finish converting the Wacom touchscreen / pen driver, possibly with the benefit of the newer Linux driver conversion tools?
I've tried a couple of times, but it's beyond my skill set (and time to learn).
I do not know of anybody working on Wacom drivers or considering to integrate any missing pieces to the current usb_hid driver. We have plans to put device drivers for Intel notebook platforms on our agenda again in 2022. I'm not entirely sure if USB HID should be part of this, at least not highest priority, as the current implementation supports all devices available to us very well. First, we will concentrate on the base drivers (e.g., XHCI) to support recent notebook platforms.
Do you have experiments to share or just some details what is missing from the current driver? Is Linux 4.16.3 supporting the device your addressing? Are we talking about [1]?
It's related to that issue, but the crash has been fixed. The remaining problem is that the hardware generates a variety of non-standard events, which confuse nitpicker (e.g., puts it into a state where it no longer responds to mouse clicks).
Unfortunately, I just tried using brute force (before the Genodians articles about the new tooling), and don't have any useful results.
Do you think I might be able to borrow code from another driver? I could try that, and see what happens. (I'm running a newer version of Linux, but I assume that it's worked there for quite a while.)
Any ideas are welcome!
Thanks!
John J. Karcher devuser@alternateapproach.com