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On 03/04/13 16:14, Patrick Powell wrote:

> I run into this a lot when I use USB serial devices.  Try using:
> ls /dev/cu*
> and see what devices you have.  For examle:
>
> server:{15} # ls /dev/cu*
> /dev/cuau0      /dev/cuau0.init /dev/cuau0.lock /dev/cuau1
> /dev/cuau1.init /dev/cuau1.lock
>
> Note that the device is /dev/cuau0 not /dev/cauU0
>

Thanks for your answer.
In the end I was able to accomplish my task by removing the suid flag 
from minicom.

  bye
         av.