usb-serial port

[reica]

Ubuntu 12.04 seems to have a problem with /dev/ttyUSB0
I have 10.04 and 12.04 running on the same computer (Dell Inspiron 560)
In 10.04 the port works perfectly. In 12.04 the port /dev/ttyUSB0 is installed (prolific 2303) but can't be opened.
Anyone with similar problem? Any solutions?

[alexfish]

wondering if this a permissions problem

can check with

ls -al /dev/ttyUSB0

to give user permissions try as root

sudo chmod 666 /dev/ttyUSB0

or

sudo su
chmod 666 /dev/ttyUSB0

then check with "ls -al /dev/ttyUSB0"

[reica]

Nail on the head! Permission problem. Everything working fine now. Thanks