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xlpmonitor - printer port monitor for Linux/intel boxes

xlpmonitor monitors signals of parallel port of Linux/intel boxes and display it like indicator LEDs on the printers.

Although lp(4) provides facility to read status of the printer port, this program read signal on the parallel interface directly through /dev/port pseudo device. The program is absolutely non-portable - it strongly depends to the underlying hardware and operating system, and will work only with some Linux operating system on Intel machines. It had worked on redhat Linux 6.x and Vine Linux 2.1.

Options

-address port-address: Specify the I/O port address (e.g., 0x378) to be monitored. No default value.
When this is not specified, xlpmonitor will try to get the address from /proc/parport/n/hardware.
-port parallel-port-number: Specify the number of the parallel port to be monitored. The default is 0.
This parameter will ignored when -address is specified.
-print: Output a short message which describes the status of the port and exit immediately.

Download

xlpmonitor-0.2.tar.gz - version 0.2 [UNSTABLE]

Install

To install this program, run

xmkmf; make; make install

in the directory where the source is stored. You should note that you must become the superuser (root) before running `run install'.

The command should be owned by kmem group and set-GID'ed so that it can read the /dev/port pseudo device.

Author

xlpmonitor was written by Tom Sato, and it is distributed under the terms of the GNU General Public License.

Please send any feedback (such as bug reports, requests or comments) to Tom Sato <VEF00200@nifty.com>.

The latest version of this software and more information about it may be available at http://t-sato.in.coocan.jp/.

by Tom Sato, 2001-04-29