[Gllug] Dbus/Hal - doing useful things

[Daniel P. Berrange]

On Thu, Oct 20, 2005 at 12:52:48PM +0100, Huw Lynes wrote:
> If I plug a USB-storage device in Hal picks it up and messages get
> broadcast across Dbus. If I use dbus-monitor --system I can see the
> messages and even pick out the ID of the device.
> 
> What I want to do is run a program when a particular device gets
> attached. I could write a python app (the dbus python bindings don't
> look that hard) and get Gnome to autostart it. Then it can listen to
> Dbus and do it's stuff when it sees the device get attached.
> 
> However this seems like the wrong way to do it. Hal and Dbus are already
> watching for these events. So is there a way to get Hal or Dbus to
> launch a script on a particular event?

Take a look at the files in /usr/share/hal/fdi/policy. The device
mapping rules look as if they have some correspondance to scripts
HAL has in /usr/libexec, suggesting you ought to be able to write
some new rules to run stuff.

Dan.
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