> > >> -bus master devices which assumed little endian byte order in
> > >> +bus master devices that do little endian
> > >> .Tn DMA
> > >> -transfers, even on big endian systems.
> > >> +transfers on big endian systems.
> >
> > What's "little endian transfer"?
>
> A transfer of little-endian data? I guess that's not entirely clear,
> especially for anyone who doesn't automatically interpret "DMA" as "a
> form of memcpy".
>
> Anyway, I just fixed it up again, please take a look.
>> to handle PCI bus master devices that (via DMA) transfer little endian
>> data even on big endian systems.
Hmm. I'm still afraid "transfer little endian data" might be ambiguous.
hto*()/*toh() functions are required only for data passed between
the target busmaster itself to control it. Any other little endian data
transferred to/from actual devices never require those byteswap ops.
How about this one?
> to handle PCI bus master devices that (via DMA) transfer word parameters
> in little endian even on big endian systems.
---
Izumi Tsutsui (who introduced htopci() macro into pcscp(4) in PR#6654
to implement the driver on macppc about 11 years ago)
