Comment 41 for bug 1887190

I am now working on this issue.

I can confirm the solution provided by https://www.cnblogs.com/mikeguan/p/13126497.html works. What the solution does is,
 - blacklist hid_multitouch
 - Add the vendor id and product id of this touchpad device to hid_device_id in drivers/hid/hid-rmi.c

I've posted the patch to https://github.com/coiby/linux/commit/cca37387d87a874824040c946f43cecce2679d70. You needn't to re-build the whole kernel to test if it works. You simple build the hid_rmi module and load it with insmod.

But this is not an perfect solution. I'm now working on a solution that doesn't need to blacklist hid_multitouch. I've figured out how hid-core.c let the hid_multitouch driver handle this device.