cvs commit: src/share/man/man9 bus_alloc_resource.9
bus_set_resource.9
Nate Lawson
nate at root.org
Tue Jan 27 11:58:03 PST 2004
On Tue, 27 Jan 2004, M. Warner Losh wrote:
> In message: <200401270604.i0R64Fpc076025 at repoman.freebsd.org>
> Nate Lawson <njl at FreeBSD.org> writes:
> : njl 2004/01/26 22:04:15 PST
> :
> : FreeBSD src repository
> :
> : Modified files:
> : share/man/man9 bus_alloc_resource.9 bus_set_resource.9
> : Log:
> : Document my adventures in newbus land. Clarify some examples, especially
> : that count is in bytes, not bits. There are some drivers that I think make
> : this mistake. (I've seen counts of 16 in the tree).
>
> Counts of 16 in the tree are likely correct. Many devices have 8 or
> 16 or 32 io ports in ISA land. I've not seen any drivers make this
> mistake. Care to give an example?
Well, for one ichsmb(4). It allocates 16 IO ports but only uses 8
according to its .h. The netgraph bt3c driver allocates 8 but only uses
5. I'm curious if wi/owi really need 64 IO ports.
-Nate
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