linux-kernel - Re: Syba 8-Port Serial Card Unidentified By Kernel

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Date:	Tue, 9 Oct 2007 14:14:13 -0400
From:	lsorense@...lub.uwaterloo.ca (Lennart Sorensen)
To:	Chris Bergeron <chris@...urn.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Syba 8-Port Serial Card Unidentified By Kernel

On Fri, Oct 05, 2007 at 05:31:05PM -0400, Chris Bergeron wrote:
> I've just installed a multiport serial card released by an outfit called 
> Syba.  This is an 8 port serial-only card with an Octopus style breakout 
> cable.  The main chipset on it is an ITE IT8871F.

Well 8250_pci.c mentions IT8871, so it is probably 8250 style in
interface then.

> I've got two questions on this: Is there a driver I should try force 
> loading on it (and if so, what options to use)?  and is there any useful 
> testing I can do to report back to the LKML on this card?

How many serial ports is your kernel configured to use?

CONFIG_SERIAL_8250_NR_UARTS=16
CONFIG_SERIAL_8250_RUNTIME_UARTS=4

That is from my Debian system's kernel, and it won't activate more than
4 ports automatically.  It will allow up to 16 to be activated though.
I don't remember what the boot command is to override those values to
make the system look for more ports.

--
Len Sorensen
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