Need a device drive for a modem on PS/2-aix

[Sofus Macskassy]

Help!!!!  I have to write a device driver for a modem on my PS/2-70
First of all, I never wrote a device driver before, and second of all
I haven't been albe to get any sample device drivers to look at.  If
anybody either has a device driver like that, or some similar drivers,
that I can take a look at... or just some general ideas on how to
write one, please let me know.... I'm desperate!!!!  PLease help!!!

mail me at:

sofmac at porthos.rutgers.edu

thanks in advance