Powerbook5,7 (G4 17") and USB 2.0 disk drive
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I have an external USB2 disk drive enclosure with a 40GB PATA IDE disk
drive in it. It has an odd cable, with USB "A" connectors on both ends
and two connectors on the "host" side. I don't know the reason for
this, but in my Intel Desktop Board DG965RY (Core 2 Duo EM64T) and my
Thinkpad R51 the drive works properly with one -or- two USB connectors
plugged in. On the Powerbook, due to the layout of the USB connectors,
connecting both plugs is not possible, and the drive does not work with
just one. The LED lights up, but the disk just clicks helplessly. The
kernel says "new high speed USB device using ehci_hcd" but that's it.
It does not identify the device (not visible in lsusb) and it certainly
does not allow me access to my data. I plugged this drive (using just
one connector) into my partner's computer and it spun up and operated
normally as near as I could tell from listening to it (his computer
runs Windows and the disk is ext3-formatted). I assume this is a power
issue, perhaps the Powerbook USB HCI is enforcing some limit that the
other controllers do not? Is there any way to work around this in
software, e.g. a kernel patch? Thanks in advance.
- --
Andrew J. Barr
X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.12; powerpc-unknown-linux-gnu)
Ronald Reagan: America's answer to Inspector Clouseau
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