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Date: Thu, 26 Mar 2009 16:38:24 +0200
From: Andriy Gapon <avg@icyb.net.ua>
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To: Ronald Klop <ronald-freebsd8@www.klop.ws>
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Cc: freebsd-stable@freebsd.org
Subject: Re: remote debug over usb vs. old serial cable?
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on 26/03/2009 16:33 Ronald Klop said the following:
> Is that this sio0 one?
> sio0: configured irq 4 not in bitmap of probed irqs 0
> sio0: port may not be enabled
> sio0: configured irq 4 not in bitmap of probed irqs 0
> sio0: port may not be enabled
> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
> sio0: type 8250 or not responding
> sio0: [FILTER]
> sio1: configured irq 3 not in bitmap of probed irqs 0
> sio1: port may not be enabled
> 
> I am going to open my computer tonight to see what is in there.

I don't know. I think it's better to read your motherboard documentation, internal
serial header is not an obvious one and you would need a special connector for it.
The port can also be disabled in BIOS.

-- 
Andriy Gapon