/dev/cuad0: Device busy
Jeremy Chadwick
koitsu at FreeBSD.org
Mon Feb 4 06:30:23 UTC 2008
On Mon, Feb 04, 2008 at 12:53:58PM +0800, Ganbold wrote:
> Hi,
>
> I'm trying to use serial port but the system says device busy.
>
> daemon# cu -l /dev/cuad0 -s 9600
> /dev/cuad0: Device busy
> link down
Does the same happen if you do `cu -l ttyd0 -s 9600`?
> How to check whether something is using serial port?
> Any idea?
fstat should help here.
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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