Hi,

I have an iBook running -current, which has an ATI Rage Mobility graphics
card, and thought I'd try the machfb driver, rather than the standard one.
Unfortunately, the machfb driver requires the bus_space_vaddr function in
order to get direct access to the framebuffer memory. Unfortunately, this
function is currently not implemented, and so, the kernel will not build.

I had a quick look into seeing if I could implement it myself, but I think
that bus_space_map would also need changing to remember information from
the flags (in this case, whether BUS_SPACE_MAP_LINEAR was set), and I think
that is a bit beyond me at the moment.

Has anybody else done this, or is it being worked on?

Thanks,

Ian.