Take a look at user_printf in the current tree examples/misc/print_mod
On Fri, Mar 30, 2001 at 04:16:07PM -0800, Eric Peterson wrote:
> On Thu, Mar 29, 2001 at 09:16:39AM -0800, [EMAIL PROTECTED] wrote:
> >
> > When I operate my rtlinux machine remotely using rlogin from another
> > machine, the printf_rtl output from within my program goes to the screen of
> > the rtlinux machine instead of to the remote machine. This behavior
> > applies not just to my output but also to other rtl messages such as
> > "RTLinux Extensions Loaded (http://www.fsmlabs.com/)".
>
> Oliver,
>
> Note that the output from kernel messages (including rtl_print()) is
> a bit different than your standard printf() call, it's actually just
> writing to internal kernel buffers, which are picked up and spit out
> by a user-level process. Typically that process is "klogd" which
> grabs them and hands them to either syslog, or a place you have
> specified (see man klogd(8)).
>
> Two places to look: your klogd configuration (typically started from
> an rc script) and your syslog configuration (/etc/syslog.conf).
>
> As an aside, note that you can also specify the syslog priority by
> prepending the kernel printf with "<value>". For example:
>
> rtl_printf("<4>This is a priority 4 message!\n");
>
> However, there's no simple way to change the facility code, it will
> always come out LOG_KERN.
>
> > But regular operating system messages, including the gdb debugger messages,
> > do go over to the remote machine as expected.
>
> These messages from _user_ processes are sent via stdout/stderr,
> etc. so the rlogin connection forwards them.
>
> To actually see rtlinux messages on your remote system, you could
> tell the rtlinux system's syslog to forward messages to your remote
> system's syslog daemon. See again syslog.conf(5) for details.
>
> > This seems like an important capability that probably has an easy answer.
>
> I guess "easy" is relative :-) At least it's more-or-less
> straightforward...
>
> Regards,
> Eric
>
> --
> A handful of patience is worth more than a bushel of brains.
>
> Eric Peterson WB6PYK (805)370-3046 mailto:[EMAIL PROTECTED]
> http://www.troikanetworks.com
>
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--
---------------------------------------------------------
Victor Yodaiken
Finite State Machine Labs: The RTLinux Company.
www.fsmlabs.com www.rtlinux.com
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