sio0 not working on Asus M2N-SLI Deluxe motherboard

Emil Mikulic emikulic at gmail.com
Sat Feb 9 13:42:45 UTC 2008


On Sun, Feb 03, 2008 at 11:30:35PM +1100, Emil Mikulic wrote:
> This is FreeBSD 7.0-RC1 on amd64, I get the following in dmesg:
> 
> 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: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
> sio0: type 16550A
> sio0: [FILTER]
> 
> I can't get any data in or out of that serial port.

Pilot error.  Sorry for the noise, everyone.  With "-Dh" in
/boot.config, serial console and getty work just fine.

--Emil


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