Hello! I would like to use bus_space_map for writing a framebuffer driver (on i386). I've read the manpage, which sais the 4th argument of the function is the "cacheable" argument. I would like to use BUS_SPACE_MAP_LINEAR. But that doesn't seem to be defined on i386 (it's the same with BUS_SPACE_MAP_CACHEABLE and BUS_SPACE_MAP_PREFETCHABLE). What should I pass as 4th argument?
Did I get it right that the "tag"-variable just differentiates the IO-space from the memory space? Thanks in advance, Markus
