[Tracker] suspend on battery is broken

["Michael Biebl" <mbiebl gmail com>]

While checking why suspend on battery doesn't work for me, I noticed,
that the way it currently works, is to poll a fixed set of proc file
names:

        /* battery and ac power checks */
        const gchar *battery_filenames[4] = {
                "/proc/acpi/ac_adapter/AC/state",
                "/proc/acpi/ac_adapter/AC0/state",
                "/proc/acpi/ac_adapter/ADp1/state",
                "/proc/acpi/ac_adapter/ACAD/state"


This approach seems to be broken imho.
First, in my case the correct path would be /proc/acpi/ac_adapter/C134/state.
I'm also sure there are other paths/ways on different platforms.
Second, we have to poll (currently every 2 secs) which defeats all the
recent achievements (like tickless kernel).

Is there a good reason, not to use hal? This would solve 1 and 2.

Cheers,
Michael
-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?