modprobe, USB, and other modules
Sun Dec 28 19:08:01 2003
Thanks for the info. Yes, I am sure you are correct; this is a UHCI
card, now that I know what all of these things mean. No one ever seems
to take stuff out of a Mac and sell it separately. It is obvious then,
that I can't use this on the Mac OS side of things.
But there is every indication that YDL can recognize and drive a UHCI
card and maybe an EHCI (UHCI) card, as well. I have only got Mac OS9
loaded so I can boot to YDL, so I am in no way concerned about using the
Mac side of things.
I would definitely be convinced that I am SOL, IF I got some sort of
error message stating that the device couldn't be read, was
incompatible, or just spewed out the usual string of error codes. All I
get is "modprobe: Can't locate module usb-uhci". I hope this means I
still have a chance.
Stefan Jeglinski wrote:
>> likewise for usb-uhci
>> You do remember correctly. The 8500 has no built-in USB ports. This
>> is a $10 special, no-name board, which the hardware browser says the
>> manufacturer is VIA technologies and that it is to use the usb-uhci
>> Driver, although it does appear from the dmesg command, it hasn't found.
> FWIW, the 8500 (yes, PCI) should have no problems with an -OHCI- USB
> card; I have one in my 9500 and it is no problem for YDL.
> You may want to refer to the thread:
> "[OT] USB card was Cannot boot OS X anymore"
> circa Dec 11. I quote Tim Seufert:
>> USB 1.x controllers came in two basic flavors, OHCI and UHCI. UHCI
>> was an early standard developed by Intel, OHCI was a later one
>> developed by industry which is supposedly better, but since Intel has
>> a lot of NIH (Not Invented Here) they kept using UHCI, and many
>> silicon vendors therefore also produced UHCI controllers. Apple used
>> OHCI exclusively, so no version of MacOS (or MacOS X) has drivers for
>> UHCI USB.
>> USB 2.0 controllers are all EHCI, but the way that USB 2.0 deals with
>> 1.x devices is to require the EHCI controller to contain a complete
>> OHCI or UHCI controller core to deal with USB 1.x mode. As you might
>> guess, Apple only uses EHCI/OHCI USB 2.0 controllers, never EHCI/UHCI.
>> From this picture:
>> your card appears to have the Via USB 2.0 chip. Unfortunately, Via
>> chose to implement EHCI/UHCI. You need an EHCI/OHCI USB 2.0 controller.
> The way I read this, you are SOL. YMMV.
> Stefan Jeglinski
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