The driver comes with a makefile in the modules directory. Making the module gives you a file pctel.o in the libs directory. What to do with it from there, I haven't figured out yet.
The following files are found inside the driver download file.
|src/module/ptmodule.c||498 bytes||8 Sep 1999|
|src/module/Makefile||1.2 KB||8 Sep 1999|
|lib/dsp.a||365.7 KB||8 Nov 1999|
|lib/control.a||244.9 KB||8 Nov 1999|
|lib/ptserial.a||36.9 KB||8 Nov 1999|
|lib/hal.a||8.0 KB||8 Nov 1999|
|lib/pctel.o||651.8 KB||8 Nov 1999|