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(parent: 81868b7) | patch
don't enter burst mode for single-byte reads and writes.
authorjcs <jcs@openbsd.org>
Tue, 23 Aug 2016 18:26:21 +0000 (18:26 +0000)
committerjcs <jcs@openbsd.org>
Tue, 23 Aug 2016 18:26:21 +0000 (18:26 +0000)
commitff4af42e392e52181118a15bc64987f139cf4504
treed9e5a1bf9b5192d89df98beb0397f908d55bcac8tree | snapshot
parent81868b77d18ba88ca989fc88bea4600bab81ddabcommit | diff
don't enter burst mode for single-byte reads and writes.

avoids problems on hardware with broken or unimplemented burst mode
and isn't really necessary for such small transactions anyway.
matches what linux and freebsd have done for a long time.

tested in snaps
ok deraadt kettenis
sys/dev/acpi/acpiec.c diff | blob | history
OpenBSD src
by Ahmet Artu Yildirim