Missing serial port after enabling serial console in loader.conf

John Baldwin jhb at freebsd.org
Mon Apr 25 21:27:56 UTC 2011


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


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