lptcontrol(8)
NAME
- lptcontrol - a utility for manipulating the lpt printer
- driver
SYNOPSIS
lptcontrol -e | -i | -p | -s [-d control_device]
DESCRIPTION
- The lptcontrol utility is used to set either the interrupt
- driven,
extended, standard, or polling mode of individual lpt(4) de - vices. When a
printer is switched from a mode to another, this change will - only take
effect the next time the device is opened. - Extended mode is anything the parallel port interface can
- support. For
an ECP/ISA parallel port, it may be FIFO+DMA or ECP. - The following command line options are supported:
- -e Turn on extended mode.
- -i Turn on interrupt-driven mode.
- -p Turn on polled mode.
- -s Turn on standard mode, i.e., turn off extended mode.
- -d control_device
- Set the mode of the printer control device specified
- by
control_device. The default value for - control_device is
/dev/lpt0.ctl. - One of -e, -i, -p or -s must be specified.
FILES
- /dev/lpt? printer devices
/dev/lpt?.ctl printer control devices
/sys/i386/conf/GENERIC kernel configuration file
/boot/device.hints device hints for the parallel port - chipset
- driver, ppc(4)
SEE ALSO
lpt(4), ppc(4), device.hints(5)
HISTORY
The lptcontrol utility first appeared in FreeBSD 1.1.5
AUTHORS
Geoffrey M. Rehmet
BUGS
- The control device name should never have been an option,
- but should have
been an optional argument. Because of this, a single argu - ment is treated
as a device name. - BSD October 1, 2004