is that a member made an update of drivers cp210x ?
i work under cyanogenmod 10.1 with AML8726-mx
I find only version 0.9 ( for cp2101 , cp2102 , cp 2103 )
i've cp2104 and the good version is 1.10 at silabs link cp210x-3.1.0.tar.gz
I do not know how to compile