Serial Port, photo PC, and 2.2r1

[Jason Majors]

I just put Debian 2.2r1 on my fiddlin' box and cannot get photopc to work with
it.
I get EIO errors with any application that tries to read or write to /dev/ttyS?
as any user.
The serial ports were accessible under the RedHat install I replaced with this
one, so I know it's not a problem with the BIOS or hardware.
I did an lsmod and have the serial module running. 
Any ideas?
Thanks,
Jason Majors