We're working on getting brltty to run as an unprivileged user with just a few required capabilities. We don't want one of those required capabilities to be CAP_DAC_OVERRIDE (bypass file permission checks). Some USB-connected braille devices don't respond very well to being autosuspended. We get around this, when running as root, by writing to the SYSFS power/autosuspend file associated with the device. Our problem is that only the root user can write to it. Other than using CAP_DAC_OVERRIDE (which we don't want to do), what other way(s) might we be able to use to overcome this restriction? For example, is there some kind of safe (enough) udev rule? -- I believe the Bible to be the very Word of God: http://Mielke.cc/bible/ Dave Mielke | 2213 Fox Crescent | WebHome: http://Mielke.cc/ EMail: Dave@xxxxxxxxx | Ottawa, Ontario | Twitter: @Dave_Mielke Phone: +1 613 726 0014 | Canada K2A 1H7 |
