If you know the fundamentals of C programming then
adding support for other devices should be relatively easy.
First, become familiar with the device.
Determine whether it
supports direct line drawing or raster graphics. If it has
a line drawing mode then use either tektronix.c
or impress.c (found in the src directory)
to guide you in creating the
new driver. If only raster graphics (i.e. a bitmap device) are supported
then use laserjetii.c as a guide.
You will also need to add the appropriate code to plstar.c (also in
the src directory). An examination of plstar.c should indicate
what changes have to be made.
A make file (LMKFILE) is provided in the root directory
of the PLPLOT disk to automate the process of updating
the library. You will probably want to add the name of your driver to
this make file.