On Wed, 2019-01-23 at 19:28 +0100, Florian Echtler wrote: > Hello everyone, > > I've been testing a device with a Goodix 9110 touchscreen controller > on Linux 4.18. After providing a suitable config file as firmware, > the touchscreen works, but I would be interested in also adding > active pen/stylus support. > > AFAICT the Android driver does support a stylus as a second input > device, but I haven't been able to find any datasheet that explains > the registers properly (just rather cryptic one-line comments). > > Does anyone have any pointers about the stylus support? I'd also be > interested in details about the stylus hardware itself, e.g. does it > use a fixed frequency? There's no stylus support in the driver, see the earlier thread: https://www.spinics.net/lists/linux-input/msg59433.html Cheers
