Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 25 Apr 2011 16:04:04 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        Przemyslaw Frasunek <przemyslaw@frasunek.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Missing serial port after enabling serial console in loader.conf
Message-ID:  <201104251604.04784.jhb@freebsd.org>
In-Reply-To: <4DAE153E.1010405@frasunek.com>
References:  <4DA4A96F.9000507@frasunek.com> <201104181430.13886.jhb@freebsd.org> <4DAE153E.1010405@frasunek.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On Tuesday, April 19, 2011 7:05:34 pm Przemyslaw Frasunek wrote:
> > The _STA method is used to query a device's status, and a status of 0 means
> > that the device is disabled.  I believe that this means that when you have
> > SOL enabled (SOLE?) that COM1 is marked inactive so the OS ignores the device.
> 
> Good catch, thanks! I had a feeling, that it must be caused by firmware. Is
> there any way to override above checks and make SIO detectable even with enabled
> SOL?

I don't think so.  You can try swapping the hints for sio0 and sio1 and seeing if
sio1 suddenly shows up as working and valid.  If so, then the changes in 8 to bind
unit numbers using hints might work for you to get COM1 back as sio0.

-- 
John Baldwin



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201104251604.04784.jhb>