Hello, here a patch to support new sysfs interface for Au1xxx's power management. Now we can put the system into sleeping mode by using: hostname:~# echo mem > /sys/power/state The patch keeps also the file "/proc/sys/pm/freq" from the old interface. Ciao, Rodolfo -- GNU/Linux Solutions e-mail: giometti@enneenne.com Linux Device Driver giometti@gnudd.com Embedded Systems giometti@linux.it UNIX programming phone: +39 349 2432127