> > > > So xxx_p is for pause (or something like that). > > This also matches that m68k do some tricks with delay() in the _p variants. > > Thanks for the explanation. > > m68k's isa_delay() uses the same approach as x86's slow_down_io(), > but only for Q40/Q60, which has a "real" ISA bus that accepts legacy > ISA expansion cards (http://www.q40.de/). Based on the nice description from James I have on my todo list to cook up a patch to io.h to document this. Had just not got around to do it yet. Sam -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html