On Wed, Dec 9, 2009 at 6:49 AM, Sridhar Ayengar <ploopster at gmail.com> wrote:
Cameron Kaiser wrote:
Does such a thing exist? ?I know, I'm a masochist.
I would wonder if the bus could handle the bandwidth needed.
I know for a fact that there once was made a USB interface for non-Cardbus
PCMCIA, because I have one. ?I would assume this card would Just Work(tm) in
an ISA->PCMCIA adapter.
Peace... ?Sridhar
Standard UHCI, OHCI, or EHCI host controllers can not be placed
directly on an ISA or PCMCIA bus as by definition they are PCI
busmaster devices. Several years ago I talked to one company that was
going to try to put an OHCI host controller in a PCMCIA card by
attaching it to some interface glue logic and local RAM to operate
with for it's busmaster activity. From a software point of view the
result would be different enough from the standard PCI based OHCI
interface that the standard Windows OHCI driver could never support it
and I don't think they ever produced a real product. Such a product
would require non-standard device specific drivers, which you have
have to find for whatever OS you were trying to use with the
controller.
It would be easier to interface an embedded device type of USB host
controller such as the ISP1161 to an ISA or PCMCIA bus, but then you
would still have to find device specific drivers for whatever OS you
were trying to use with the controller. That link for the EB1161ISA
ISP1161 ISA board says "This is a legacy product that has not been
manufactured for an extended period of time."