Devices connected to parallel ports

• Most external devices connected to a parallel port have their own device files

• For instance, /dev/lp0, /dev/lp1 for the parallel printers

• The corresponding device drivers (for instance, linux/drivers/char/lp.c) must use the low-level parport device driver

• You may see all device drivers using the low-level parport device driver by looking into the /proc/sys/dev/parport directory