PPI
Section: Devices and Network Interfaces (4)
Updated: hp300
Index
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BSD mandoc
NAME
ppi
- HP-IB
printer/plotter interface
SYNOPSIS
device ppi0 at hpib0 slave 5
DESCRIPTION
The
ppi
interface provides a means of communication with
HP-IB
printers and plotters.
Special files
ppi0
through
ppi7
are used to access the devices, with the digit at the end
of the filename referring to the bus address of the device.
Current versions of the autoconf code can not probe for these
devices, so the device entry in the configuration file must be
fully qualified.
The device files appear as follows:
"crw-rw-rw- 1 root 11, 0 Dec 21 11:22 /dev/ppi"
DIAGNOSTICS
None.
SEE ALSO
hpib(4).
HISTORY
The
interface
Ud
BUGS
This driver is very primitive, it handshakes data out byte by byte.
It should use
DMA
if possible.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- DIAGNOSTICS
-
- SEE ALSO
-
- HISTORY
-
- BUGS
-
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