Missing Touchscreen/Audio drivers

Just managed to install on a Lenovo Yoga Chromebook C630! But no touchscreen control or rotation, and my audio controller just reads as “dummy audio”. I imagine the missing pieces for the firmware are somewhere in the Chromium OS sources, just not sure how to get them at this point. Naturally there’s not a lot out there for Chromebook installs of Linux.

Just looking to see if anyone else has tried this with a Kaby Lake Chromebook and might have some tips. Thanks!

I guess you cannot just simply copy the binaries, because Google ships the cheated firmware so also should reset all other settings. But you should been able to ask the firmware from Lenovo vendor.