When i send data via /dev/ttyUSB0 which is created by the driver pl2303 , it is always sending the data that is last time i wondering send. That meaning : if i type the command as below:
echo hello > /dev/ttyUSB0 ## the receiver can`t get any infomation echo 1 > /dev/ttyUSB0 ## the receiver get "hello" echo 123 > /dev/ttyUSB0 ## the receiver get "1"
that is quite odd issue...i have no idea to fix it.
BTW: my linux kernel version is 2.6.24-26-generic(Ubuntu 8.04)