After a year of on-off work, I have finally ported ppbus to NetBSD. The first file release is available!
In this release (alpha-release-1-1) the following modes are available: standard centronics mode, nibble mode, byte mode, fast centronics mode for printing. ECP, EPP are probed, but only ECP writes _may_ work.
This release has atppc (the chipset driver), ppbus (abstraction layer for parallel port), and lpt (printer driver). All of these drivers are machine independent (currently untested). Included are some manual pages and a utility called lptctl (tarball only).
Looking forward to getting feedback eventually!