[openbeos] Re: dprintf help

At 15:51 27-1-2003 +0100, you wrote:
En réponse à Axel Dörfler <axeld@xxxxxxxxxxxxxxxx>:

> Eike Dehling <e.e.dehling@xxxxxxxxxxxxxxxxxx> wrote:
> > I tried making a device driver for in the kernel, it works for some
> > parts,
> > but of course there are bugs ...
> > I tried using dprintf (),  and then doing 'cat /dev/dprintf' ,but
> > nothing
> > seemed to happen.
> > i first did "cat /dev/dprinf", and then ran my test program. The code
>
> > i
> > used to do dprintf was like this:
>
> I don't know if there are other ways, but you can do it like this:
> - enable syslog output in the kernel settings file (~/config/settings/
> kernel/drivers/kernel), reboot
> - open a terminal and do "tail -fname /var/log/syslog" and you'll see
> your debug output
>

Right,
AFAIK /dev/dprintf is intended to _send_ text from userland to the syslog.
(which would be simpler to redirect to /var/log/syslog, but this way it
wouldn't appear on the serial port.

François.

after i enabled syslog-logging, and tail'ed the syslog, i saw what went wrong ...
i'ts really nasty debugging, without any form of feedback from the driver :)

Thanks, Eike.


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