this driver sits in perfectly on RED HAT 9/FC1

i am also having same problems-so switched over to RED HAT 9.
with RED HAT 9 the PCTEL HSP56 MICROMODEM works perfectly..

and i use kppp for dialing..

i am on FC1 and kppp right now..
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Note: this driver on RED HAT 9 is not a permanent driver..everytime you start the PC you have do the procedure as giving in the driver read me file..
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PCTEL Driver for Linux Version 0.9.7-9

1. Installation
===============

1.1 Automatic installation (for beginners)
------------------------------------------
- you must be root
- you must have installed a c compiler and development tools like
make, perl, ...
- you must have lspci in a standard path (for automated install)
- you must have installed your kernel sources, which corresponds
to your current running kernel


a) tar zxvf pctel-version.tar.gz

b) cd pctel/

c) ./setup

If everything was ok, you will see the message "installation done" at the
end of the output.

1.2 Manual installation (for experts)
-------------------------------------
- you must be root
- you must have installed a c compiler and development tools like
make, perl, ...
- you must have installed your kernel sources, which corresponds
to your current running kernel


a) tar zxvf pctel-version.tar.gz

b) cd pctel/src/

c) ./configure

d) make

e) make install


2. Try your driver
==================
just to try out, if your driver works:
insmod pctel
insmod ptserial

or
insmod -f pctel
insmod -f ptserial

-f means "force", which means, it will force loading the driver, even
with warnings.

then, look at
lsmod
it should print pctel and ptserial.

PS: For permanently loading the driver ..folow these.

 edit (as root) /etc/rc.d/rc.local file
and in the end or wherever you want add some lines like this

#loading pctel modules
insmod -qsf pctel
insmod -qsf ptserial

and its done ..!