marc@marc-laptop:~$ sudo /etc/init.d/hdapsd stop
[sudo] password for marc:
marc@marc-laptop:~$ sudo hdapsd
Wed Dec 30 17:42:16 2009: Starting hdapsd
Wed Dec 30 17:42:16 2009: WARNING: You did not supply any devices to protect, trying autodetection.
Wed Dec 30 17:42:16 2009: Could not read from /sys/block/sda/device/unload_heads: Operation not supported
Wed Dec 30 17:42:16 2009: Could not detect any devices.
Usage: hdapsd [OPTIONS]
-d --device=<device> <device> is likely to be hda or sda.
Can be given multiple times
to protect multiple devices.
-f --force Force unloading heads, even if kernel thinks
differently (on pre ATA7 drives).
This only works when adding devices by hand (-d).
-s --sensitivity=<sensitivity> How sensitive hdapsd should be to movements.
Defaults to 15, higher value means less
sensitive.
-a --adaptive Adaptive threshold (automatic increase
when the built-in keyboard/mouse are used).
-v --verbose Get verbose statistics.
-b --background Run the process in the background.
-p --pidfile[=<pidfile>] Create a pid file when running
in background.
If <pidfile> is not specified,
it's set to /var/run/hdapsd.pid.
-t --dry-run Don't actually park the drive.
-y --poll-sysfs Force use of sysfs interface to
accelerometer.
-l --syslog Log to syslog instead of stdout/stderr.
-V --version Display version information and exit.
-h --help Display this message and exit.
You can send SIGUSR1 to deactivate hdapsd for 8 seconds.
Send bugs, comments and suggestions to hdaps-devel@lists.sourceforge.net