Boaz Harrosh wrote:
On Fri, Mar 21 2008 at 22:41 +0200, "H. Peter Anvin" <hpa@xxxxxxxxx> wrote:
Matthew Wilcox wrote:
VESA Local Bus. It was (in some sense) the predecessor of AGP. We
treat it like ISA inside the kernel. On x86, EISA depends on ISA, so
the dependency, while wrong, does not affect any x86 users who have an
EISA card.
Well, one can say VLB was to ISA (a souped-up ISA bus with some of the
worst limitations removed) what AGP is to PCI...
-hpa
Hmm interesting, so someone took the VGA thing and made a storage device
for it. Did that ever happen with AGP? Any AGP scsi cards. I guess I can
Google for it.
A lot less likely, IMO. Unlike AGP-PCI, VLB slots were compatible with
ISA cards, and the electricals were less complex, so several motherboard
manufacturers built boards with 3 or more VESA slots (I think I saw a
board with 6 at one point.)
AGP electricals pretty much require that it be point to point.
-hpa
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