serial port sample to MID I97D with PL2303 (clone) on USB host: no data received in console

[GoogleCodeExporter]

What steps will reproduce the problem?
1.connect PL2303 to MID tablet usb host and via serial cable to pc com port
2.open hyperterminal on pc
3.chmod 777 /dev/ttyUSB0 on tablet
4.send characters from hyperterminal

What is the expected output? What do you see instead?
Instead of viewing the characters on the serialportsample console only line 
feeds are returned
sending data from the console no output in hyperterm

What version of the product are you using? On what operating system?
serialportapisample latest from market on android 2.3.1 gingerbread (kernel 
2.6.32.27)

Please provide any additional information below.
MID tablet I97D uses rockchip 2911 cpu. No modifications seem to be needed to 
install the serialportsample to the tablet and ttyUSB0 interface is presented 
as soon as pl2303 clone is connected to the USB host port.

Original issue reported on code.google.com by [email protected] on 3 Jan 2012 at 1:16