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 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html