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LPT(4) NetBSD/x86 Kernel Interfaces Manual LPT(4)
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by Kimmo Suominen.
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lpt -- Parallel port driver
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 ?
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.
/dev/lpt0 first interrupt-driven parallel port device
/dev/lpa0 first polled parallel port device
acpi(4), isa(4), ofisa(4), pnpbios(4), puc(4)
NetBSD 9.1 September 23, 2011 NetBSD 9.1