[plug] internal modem device

[ryan at is.as.geeky.as]

> Is there any way of testing the serial ports to make sure they are not
> crook?  I'd like to eliminate any other sources of error if I could.
> 
> Thanks,
> Tim Bowden

I don't actually know for sure - but I found this today looking at unrelated 
things, might be of some use:

>>> minicomm -s
>>> Select 'Serial port setup'  menu and change the following
>>> Serial Device to your comm port(/dev/ttyS0/1)
>>> Bps/Par/Bits to 9600 8N1
>>> Set the Hardware Flow Control to 'No'
>>> Set the Software Flow Control to 'Yes;
>>> Save the setup as defauls and chose Exit
>>> Now you will be in the minicomm screen
>>> Short the 2 and 3 pins of your seral port and type some 
>>> thing from the keyboard you should see the typed text in the screen

Ryan