Re: Serial Port Problems

[Ethan Rosenberg <erosenberg@hygeiabiomedical.com>]

On 10/03/2014 03:33 PM, Dan Ritter wrote:
> On Fri, Oct 03, 2014 at 08:43:50AM -0400, Ethan Rosenberg wrote:
> > Dear List -
> >
> > I am trying to capture data from a serial port and write it to a file.
> >
> > ethan@meow:/var/www$ cat /dev/ttyS0 > scale_value.html
> > cat: /dev/ttyS0: Device or resource busy
>
> lsof /dev/ttyS0
>
> (tells you what is holding that port open)
>
> -dsr-
Dan -

Thanks.

root@meow:/var/www# lsof /dev/ttyS0
COMMAND   PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
screen  28323 root    6u   CHR   4,64      0t0 1119 /dev/ttyS0

TIA

Ethan