UNIX for Dummies Questions & Answers

Hello,

I am trying to send serial commands via a USB->Serial device using Mac OSX 10.5. I have the PL2303 driver installed. I have installed minicom and I can send commands all day long using echo "Dallas" >/dev/tty.usbserial if minicom is running. If minicom is not running the the echo command will hang up. I don't understand how minicom is able to keep the driver configured properly during the session. I have tried to change the settings of the tty.usbserial device using stty but the settings revert back instantly so of course the echo command will hang.

I found this script on the Interweb somewhere but it hangs as well.
#/bin/bash

{ stty speed 38400
echo "ATI0"
} < /dev/tty.usbserial > /dev/tty.usbserial


Any help would be greatly appreciated,
Thank you
Dallas

I wonder if you've tried using "screen". I use it with FTDI's chipset and Bluetooth devices quite a bit. As a terminal it works very well, and simply.
eg. screen /dev/tty.usbserial -9600
Geoffre