> > I would like redirect the terminal output from serial to the frambuffer, and 
> > keep the terminal input as same.
> 
> The shortest development path would be to hook a serial kbd at an empty
> serial port making txkbd device to route kbd event stream into wskbd.

Ah, it was implied that you have working USB port in the target system.
Then, you can obtain ready-made wskbd support with zero cost if you hook
any USB kbd.

Toru Nishimura/ALKYL Technology