Re: Support for serial console on legacy free machines

From: Khalid Aziz (
Date: Mon Jul 30 2001 - 18:45:38 EST

Andreas Dilger wrote:
> OK, maybe I'm misunderstanding here, but even if I put in a PCI serial
> card in such a machine, can I get serial console support without ACPI?
> Not that it matters in my case, because there are no PCI slots on the
> motherboard either.

AFAIK, you can not have console on a PCI serial port at this time. I
looked at it few months back and found out that PCI initialization
happens much too late for a serial console. It would take quite a bit of
work to get serial console working on PCI cards. PA-Linux faced the same
problem but they were able to get around it by using the firmware calls
to do console I/O. If serial console were working on PCI serial cards,
you wouldn't need ACPI to use it.


==================================================================== Khalid Aziz Linux Systems Operation R&D (970)898-9214 Hewlett-Packard Fort Collins, CO - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to More majordomo info at Please read the FAQ at

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