Default [Q] No drivers.

I have a tablet, unknown brand, chip is RK2928/2926 (Device says RK2928, on board written RK2926).
I flashed two ROMs, and the touchscreen is not working.
I figured out that I need to install drivers for this device but could not find any.
When i'm writing 'lsmob' in the adb, I get only one line.
Where can I find drivers for my device so the touch screen would work?

Thanks in advance!