hal-device-manager: device=/org/freedesktop/Hal/devices/acpi_BAT0

Hi,

When calling hal-device-manager my Gnome terminal prints
'PropertyModified, device=/org/freedesktop/Hal/devices/acpi_BAT0'. But 'cd /; ls' does not list a directory '/org'. What stands 'device=/org/...' for?
Is there a program description or tutorial of hal-device-manager?

Regards,
Detlef Lechner

Linux MD97600 2.6.20-15-generic #2 SMP Sun Apr 15 2007  i686 
Ubuntu 7.04, GNOME 2.18.0, Epiphany 2.18.0, Evolution 2.10.0
Irssi 0.8.10, OpenOffice.org 2.2, WinXP MCE 2005
Medion MD97600