On Thu, 2005-04-07 at 19:06 +0200, Davide Bolcioni wrote: > John (J5) Palmieri wrote: > > On Thu, 2005-04-07 at 18:42 +0200, Davide Bolcioni wrote: > >> > >>My guess is that I should look at either HAL or D-BUS, but I would like > >>to hear about the pros and cons of each solution: as far as I know, HAL > >>feeds D-BUS but the latter is mainly intended for desktop applications, > >>so in my use case might not even be there. > > > > D-BUS is for use from (right above) the kernel up to the Desktop. You > > can use it for system services also. It is why we have a system bus in > > the first place. > > Well, the D-BUS pages at freedesktop.org seem a bit thin on > documentation. I could start listening on the system bus FIFO, but how > am I supposed to know what to listen for ? > D-Bus is just a communications bus. You need to look at the HAL specs to see how to listen for hardware changes. Take a look at gnome-volume-manager which handles CD's/DVD's in a users session. Just note that the HAL and D-Bus in FC3 are significantly different than the ones going into FC4 because of API overhauls. If you have any other questions about HAL and D-Bus please post their respective lists. -- John (J5) Palmieri Associate Software Engineer Desktop Group Red Hat, Inc. Blog: http://martianrock.com
