Re: USB [Was: Re: [LIB] slow]

[john]

Date: Fri, 14 Jan 2005 13:33:03 -0600 (GMT+6)
From: john <[EMAIL PROTECTED]>
Subject: Re: USB [Was: Re: [LIB] slow]

On Wed, 12 Jan 2005, Philip Nienhuis wrote:
Date: Wed, 12 Jan 2005 14:29:20 +0100
From: Philip Nienhuis <[EMAIL PROTECTED]>
Subject: USB [Was: Re: [LIB] slow]
john wrote:
On Sun, 9 Jan 2005, Philip Nienhuis wrote:
john wrote:
..<snip>
On Sat, 8 Jan 2005, Philip Nienhuis wrote:
john wrote:
On Thu, 6 Jan 2005, Philip Nienhuis wrote:
<snip>
:
I got no USB on my Lib (no EPR, no USB card either).
On both the 100 and 110 1.1 usb is native. you just need to plug in a
connector to the docking port plug.
I got no docking station, just the port replicator :-(
you don't need the dock. if you check the 100 maintence manual it shows
the pinout for the usb. you just need to connect to those four pins and
you have it.
Found it, pins 91-94 (Table C-2), i.e. USBVC1 (2X), USBDP1, USBDN.
Right but.....
just need a plug really and to turn the controller on.

Sure, but how? in practice?
Wasn't there supposed to be an extra chip in the dock to add the full
USB capacity? And isn't there any buffering needed on the EPR/dock
connector? I remember some discussion on this in the list a year or so
ago.
The usb support is in the I/O ? GA. It isn't supported under Windows from
what I've seen neither 2000 or XP sees it. The linux alternative driver
does uhbc I think its called. There isn't the buffering drivers--for a
hotswappable setup you would need to install those (being able to plug and
unplug the cable with poweron) but its there.
Any suggestion for adding these drivers in? It would be interesting to
add a USB port to the small port replicator ("I/O Adapter") if at all
possible....
they are just buffering chips. they keep the voltage stableon the 
controller and allow you to disconnect the cable. connect the d i/o to it 
and the the socket for the cable on the other side.

I wonder if there is some sort of HW handshaking needed to initialize
USB; if so, the chips in the EPR might take care of this and w/o an EPR
USB simply won't work.
raymond was right -- without the dock the usb is turned off. easy to turn 
back on though if you think about it.

john

Philip