modprobe, USB, and other modules

[Olaf Olson]

Stefan,

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.

Olaf

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:
>>
>> http://www.startech.com/ststore/showlarge.cfm?ProductID=PCI220USB&topbar=topbario.htm 
>>
>>
>> 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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