On Dec 2, 2011, at 12:50 AM, Matt Emson wrote:

> 
> 
> Sent from my iPhone 4
> 
> On 2 Dec 2011, at 02:28, Clark Martin <[email protected]> wrote:
> 
>> On Dec 1, 2011, at 4:21 PM, Lists <[email protected]> wrote:
>> 
>> The Pismo does NOT have external ADB. It does have S-Video which uses the 
>> same MiniDIN-4 connector. 
> 
> Fair enough. I don't own a Pismo, so I don't know any better - simply making 
> assumption on the info posted here so far. I do know that ADB (or a flavour 
> of it) continued to exist and be used (for various tasks) in PowerBooks, 
> right up till the MacBook. Models right up to the later G4 PowerBooks used 
> the ADB protocol for connecting their internal Keyboard and trackpad, plus 
> they all (afaik) continued to use it for the PMU and some other device I 
> forget. How it was implemented, no idea.  Might be as it was in legacy Macs, 
> might be over USB, might be some internal specific bus protocol layer. But, 
> no matter the technicalities, required ADB drivers to make those peripherals 
> function. Make of that what you will :-)

System Profiler in my PB G4 AL book (the last 1.67GHz model) does not list ADB 
at all. The keyboard and trackpad are listed on a separate USB bus from the 
external ports.

-- 
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs


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