[openbeos] Re: Intel 945GM Support (intel_extreme driver)
- From: "Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Thu, 03 Aug 2006 11:52:19 +0200 CEST
"Mathew Schofield" <mr.skoe@xxxxxxxxx> wrote:
> > The easiest way would be via serial debugging cable and a few
> > dprintf()s in the driver.
> Unfortunetly not only do i not have a serial cable, but theres no
> serial
> port on the laptop... :(.
Gotcha! :-)
> > If you don't have that, you could write output to a file, and do a
> > open
> > /write/close/sync for every line you put in there.
> Do you mean using the standard C FileI/O functions? I just tried this
> anyway (Messing around) and i'm getting 'undefined reference...'. Is
> this because a driver is a kernel-module where these functions don't
> belong?
That's why I wrote open/write/close/sync - you have to use those
functions, there are no high-level fopen(), fputs(), etc. functions in
the kernel.
You can use O_APPEND with open(), though, so that you don't overwrite
previous output :-)
Like:
fd = open("/boot/home/ie.debug", O_WRONLY | O_APPEND);
if (fd >= 0) {
write(fd, message, strlen(message));
close(fd);
sync();
}
> I think my noobness is showing again :O. Sorry.
No problem :-)
Bye,
Axel.
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