August 6, 1993 LPT 4 i386

### NAME

lpt - Parallel port driver

### SYNOPSIS

lpt0 at isa? port "IO_LPT1" irq 7 lpt1 at isa? port "IO_LPT2" lpt* at acpi? lpt* at ofisa? lpt* at pnpbios? index ? lpt* at puc? port ?

### DESCRIPTION

This driver provides access to parallel ports. The bits in the minor number select various features of the driver. If no IRQ is specified in the kernel configuration, only the polling device may be used.

Minor Bit Function
128 Use the interruptless driver. (polling)
64 Do not initialize the device on the port.
32 Automatic LF on CR.

### FILES

```/dev/lpt0`
  first interrupt-driven parallel port device
```/dev/lpa0`
  first polled parallel port device

### SEE ALSO

acpi(4), isa(4), ofisa(4), pnpbios(4), puc(4)