At 09:41 PM -0500 11/17/2005, Lists wrote:
Ok, so here's what I know (or think I know) about USB2.
USB2 is backwards compatible to USB1, so if you plug in a USB1
device into USB2, it will work, BUT it will make all the devices on
that USB bus go at USB1 speed.
So, here is my question: there are two USB ports on my 15"/1.5Ghz Powerbook.
Is there one USB bus or two?
hum. I thought they were USB 1.1 ports. But apparently, mine dates
from after Sept 2003 - so they're USB 2. :)
http://www.everymac.com/systems/apple/powerbook_g4/stats/powerbook_g4_1.5_15.html
http://docs.info.apple.com/article.html?artnum=86283#pbg45
Can't seem to find how many separate ifaces they be. Panther's
Profiler shows we have four USBs... One has our bluetooth mouse
listed under it. Not sure which is what on the other three... but we
have only two physical USB ports. What's the 3rd?
confused,
- Dan.
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