[Soekris] comBIOS via COM2 / GPIO 18 19 20

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Feb 19 09:52:57 UTC 2008


In message <200802190945.m1J9jTEI014024 at jenny.webhoster.ag>, soekris at reimes.inf
o writes:
>Hi all,
>
>Is it possible to access the comBIOS via the second com port? I
>connected the GPIO pins 18-20 (RX, TX, GND) to my USB/serial converter,
>it works fine with linux as /dev/ttyS1, but i also want to control the
>BIOS and PXE boot as well.

As far as I know, there is no way to make comBIOS use the second com
port, short of a recompile.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.


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