Re: Intermittent loss of ftdi-sio link

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Hi Alan,

On Sat, 20 Nov 2010 22:45:23 -0500 (EST) you wrote:
> > Now, I should probably say that the "Oxford Vacuum Science"
> > "PicoSphere" (the device with the FT4232) is plugged into a front panel
> > USB socket on a card reader,
> 
> This isn't clear.  Do you mean that you've got a USB port built into a
> card reader's front panel and the PicoSphere is plugged into that port?  

Yes, that's exactly what I mean.

> In that case, how is the card reader connected to the computer?
> 
It's on one of the internal USB headers - the 2x5 pin header things for front panel sockets. The card reader is a 3.5" drive bay device.

> >  which I suspect means there's a hub in
> > there. And the big blob of usb-storage stuff makes me wonder whether
> > it's actually the card reader that's flaky.
> 
> No, there's no hub.  The log shows that the high-speed USB host
> controller connected to both the PicoSphere and the storage device (the
> card reader?) stopped working.

The USB storage device is the card reader; it declares itself as "IN-WIN" and there's no other USB storage present.

> 
> This is not a failure of a peripheral USB device; it's a failure of a
> controller in the computer.  An "lspci" listing might be useful,
> together with an "lsusb -v" listing.

zechariah ~ # lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8235 PCI Bridge
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
01:00.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15)
zechariah ~ # lsusb -v
-su: lsusb: command not found

Ooops! I'd better install that. Now I wonder which Gentoo package it is...

Back shortly

Cheers,
Rob
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