modes

Parallel port's hardware modes, comma-separated, meaning:

  • PCSPP - PC-style SPP registers are available.
  • TRISTATE - Port is bidirectional.
  • COMPAT - Hardware acceleration for printers is available and will be used.
  • EPP - Hardware acceleration for EPP protocol is available and will be used.
  • ECP - Hardware acceleration for ECP protocol is available and will be used.
  • DMA - DMA is available and will be used.

Note that the current implementation will only take advantage of COMPAT and ECP modes if it has an IRQ line to use.