Linux/Unix Specific Information
LProf is an open source application that creates
ICC profile
for cameras, scanners and monitors.
Measurement Device Setup
Serial Port Setup
For serial port measurement devices when you are running as a normal
user (IE. not root), you may have to change the permissions on the
serial port you are
using for your device. You will need to figure out which physical
port maps to each logical device (IE. /dev/tty?) so that you can make
sure this device has it's permissions correctly setup. As root
you can use the following command to make the port accessible:
chmod 666 /dev/ttyS1
but this will only last until the system is rebooted. On non-udev
Linux systems a way to make this persistent is to add the chmod command
to the /etc/rc.serial
file and make sure that rc.serial is invoked in
the /etc/rc.sysinit script.
On udev systems systems the
creation and accesss rights for devices like serial ports are handled
by udev. On many newer systems this will be correctly configured
to handle these devices and you will not need to do anything. If
however you find that you can not access your device then you will have
to modify the udev configuration. You could create a 10-serial.permissions file that looks like this:
ttyS1:root:uucp:0666
and then install it as /etc/udev/<rules.d or permissions.d>/10-serial.permissions, making sure
it has owner root, group root, permissions 644. Also the value of <rules.d or permissions.d> depends on your system. So look in /etc/udev to see what this needs to be.
USB Port Setup
Some distros are setup with udev
rules that correctly handle libusbdevices
out of the box and user lucky enough to have one of these systems will
not have to do anything to get their devices working. On other
systems users will have to
modify their hotplug
or udev configuration files.
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LProf.
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