udev under Debian Etch Linux.
A HP Laser Jet 1000 printer and driver was to be installed on a PC
running Debian Etch.
The appropriate packages were installed (ghost script, foo2zjs, cups,
foomatic, some foo-ppd package etc.) No samba was needed. The printer
needed a bit of special attention. In the time between the printer
being connected to the USB port and the desire to print a page was
realized, an executable (printer firmware) had to be downloaded to the
printer. The executable file, sihp1000.img, was copied form Windows XP
Pro after the HP Laser Jet 1000 print driver code was installed there.
The foo2zjs installation provided a folder for such firmware but there
was no content. The firmware was copied to;
/usr/share/foo2zjs/firmware/
A script, Start-HPLJ1000-Printer.scr, was generated and placed there
too. This script was executed by udev once the printer was connected.
When the script was run, the printer would come to life for a few
moments, then wind down. The mod of the script was changed (0744) to
make it executable.
The script, Start-HPLJ1000-Printer.scr, contained the following;
#!/bin/bash
cat /usr/share/foo2zjs/firmware/sihp1000.img > /dev/HPLJ1000
exit 0
In /etc/udev/rules.d a symbolic link was established;
010_HPLJ1000 -->../HPLJ1000.rules
The rule HPLJ1000.rules contained one long line;
BUS=="usb", KERNEL=="lp[0-9]", SYSFS{product}=="hp LaserJet 1000",
NAME="usb/%k", SYMLINK="HPLJ1000",
RUN="/usr/share/foo2zjs/firmware/Start-HPLJ1000-Printer.scr"
The key RUN caused the firmware script to be executed at the time the
printer was connected to the USB port. Using RUN+= or PROGRAM did not work.
When udev performed its task, one could see the entries /dev/HPLJ1000
and /dev/usb/lp0.
norii --- at --- look ding ca
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