In gnome-power-manager I'm using the colorimeter device model and make to show the correct images to the user, explaining how to set the device into calibration mode and attach it to the screen. It's polish, but important polish. To do this, I need the make and model of the colorimeter device. As most colorimeter devices have no native Linux kernel drivers, we don't get ID_VENDOR and ID_MODEL set for us. To work around this, I'm using usb.ids, much like we do with soundcards and some other HID devices. This is the rule I'm using: # color calibration device ENV{COLOR_MEASUREMENT_DEVICE}=="*?", ENV{ACL_MANAGE}="1", IMPORT{program}="usb-db %p" Now, I could always put a IMPORT{program} in the gnome-color-manager rules file, but I think this belongs upstream in argyllcms. If you guys disagree, I don't mind shipping it in gnome-color-manager. Comments? Thanks. Richard.