The link to http://dl.dropbox.com/u/96820575/sarah-sharp-lpt-port-power-off2-mini.pdf on https://www.kernel.org/doc/Documentation/usb/power-management.txt is not available at this moment ( I suspect it is not longer available) Thank you
Seems like it's been fixed - http://dl.dropbox.com/u/96820575/sarah-sharp-lpt-port-power-off2-mini.pdf is live.