Fedora 13

alison@tomales ;-) ls -l /sys/power
-rw-r--r-- 1 root root 4096 Sep  5 16:00 disk
-rw-r--r-- 1 root root 4096 Sep  5 17:41 image_size
-rw-r--r-- 1 root root 4096 Sep  5 17:41 pm_async
-rw-r--r-- 1 root root 4096 Sep  5 17:41 pm_test
-rw-r--r-- 1 root root 4096 Sep  5 17:41 pm_trace
-rw-r--r-- 1 root root 4096 Sep  5 17:41 resume
-rw-r--r-- 1 root root 4096 Sep  5 16:00 state

Android 1.6

# ls -l /sys/power
-rw-rw---- radio    system       4096 2010-09-04 19:14 state
-rw-rw---- radio    system       4096 2010-09-04 19:14 wake_lock
-rw-rw---- radio    system       4096 2010-09-04 19:14 wake_unlock
-r--r--r-- root     root         4096 2010-09-05 15:11 wait_for_fb_sleep
-r--r--r-- root     root         4096 2010-09-05 15:11 wait_for_fb_wake