After quite some time (last release 01-04-2009), hdapsd got a bit of love.
Brice Arnould has contributed some code for Hewlett-Packard laptops (those supported by the hp_accel module, see drivers/hwmon/hp_accel.c) and I finally crossed all lines and wrote support for Apple MacBooks (the Intel ones, via applesmc module, see drivers/hwmon/applesmc.c).
The HP code is interesting, as it support a hardware-logic mode, where hdapsd only parks the heads when told so by the HP hardware. As I do not own any compatible hardware, this is only tested by Brice himself.
The Apple SMC code isn't tested at all, as I don't have the hardware either.
That's why I want YOU to test it further (both, on HP and Apple) and report me bugs (mail to email@example.com preferred) if you find any :)
You can get the latest source either via git from github:
git clone -b new-interfaces git://github.com/evgeni/hdapsd.git
Or from githubs tarball generator: http://github.com/evgeni/hdapsd/tarball/eb711f30395ac9bc682b14c22d8445b7ddf0b4a0
After you got the source, a simple
should produce a src/hdapsd binary, that you can test.
I can provide Debian and Ubuntu .debs if needed too.