com ports in freebsd
duanewinner at att.net
Wed Feb 11 11:21:36 PST 2004
I have a question about how FreeBSD handles the serial ports.
After messing around for 2 days, I finally got my PCMCIA modem working
on my laptop. All I really had to do was to
"cd /dev/ && ./MAKEDEV cuaa4"
I did this because dmesg kept reporting the Megahertz modem at "sio4".
What I don't understand is the why or how. My kernel config is still
using the default sio0 thru sio3 devices:
device sio0 at isa? port IO_COM1 flags 0x10 irq 4
device sio1 at isa? port IO_COM2 irq 3
device sio2 at isa? disable port IO_COM3 irq 5
device sio3 at isa? disable port IO_COM4 irq 9
So if there is now sio4 in the kernel, how is this working?
I'm not complaining, nor looking for a solution, since I have everything
I'm just trying to understand how this working.
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