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USB Mass Storage device not recognized in OS X



Hi,

I have a USB Mass Storage device(external HDD enclosure) that is able
to be detected by Win XP and Linux, with the drive volume also being
detected and able to be accessed. However, OS X doesn't seem to detect
the volume. It does however detect the USB-IDE bridge chip, which
means the USB chip is enumerating correctly? I'm wondering why then
doesn't it detect the volume? Disk Utility also doesn't see the drive.
Could it be a USB descriptor error? The bridge chip in question is a
Cypress AT2LP chip, and I've verified that it's compatible with OS X
by trying out another off the shelf enclosure with the same chipset.
When I try Win XP on the Mac with boot camp, it detects the drive
properly, so it's just Mac OS X that's the problem.

Any ideas? Thanks!
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