> > I guess using PCI Express is a cheap way to add additional > > functionality to be integrated on current motherboards. Just like > > the additional ahci controller thats integrated on my motherboard. > Looks like that and that would require MMC/SD drivers as well. So > this > would give use a greater chance of having Haiku on a SD card :) > http://www10.edacafe.com/IP/view.php?ip_id=2861 > > I have begun to investigate MMC/SD cards on my dell (x300) > But I do have some questions and thought  > What are the physical different between these? > add-ons/kernel/bus_managers > add-ons/kernel/busses Those 2 are traditional BeOS-style drivers ( bus managers and bus backends ) > add-ons/kernel/drivers/bus Those are likely pnp driver style stuff, designed for the ide replacement. Supposed to change someday. François.