Dan Welch wrote:
This is the reply I gave to Brett Glass but forgot to cc to the list:
Don't know, but sounds like a case of partial address decoding on
the board -- and/or port, address, or IRQ conflicts.
Here's the kernel incantation from the current test machine:
device sio17 at isa? port 0x278 tty flags 0x1105 irq 12 vector siointr
I/O ports 0x278-0x27F are standard for an LPT (parallel) port.
In addition, port 0x279 is used for Plug-N-Play setup.
And, IRQ 12 is used for PS/2 mouse ports built into motherboards.
Any of those resources ring a bell with your system?