I have tried with Adosbox APP for support of serial port. Below is the support needed in magicbox.

http://code.google.com/p/adosbox/downloads/list

I need to port aDosboX/Magicbox app in android tablets or phones with Serialport or USBSER functionality . I was able to do configuration of Serial port in
DOSBOX.config but it was not working in android devices. I am working on android x86 emulator with virtuabox in PC environment . I checked USB to serial functionality in DOSBOX/Magicbox it is working perfectly fine.only i was unable to MAP the Serialport to dosbox/Magicbox .

serial1=directserial realport:ttyUSB0

but it is not working here. plzz someone help me to resolve the issue. I suspect root permissions for the Serial port device. I also want USB to Serial functionality on android phones

source code is here http://code.google.com/p/adosbox/source/browse/

if wanted I will Share team viewer for support for you