Tracking down USB errors on MacOS 10.6.8

I have been buried in logs.:/
How do you supposed that one figures out what this actually means?

[5] AppleUSBOHCI[0x554c000]::ControlPacketHandler(FN: 0, EP:0): Error: 0xe00002ed, 
    stage: 0x15, todo: 0x40
[3] AppleUSBOHCI[0x554c000]:ControlPacketHandler error 0xe00002ed
    occured on endpoint (0). todo = 0x0 (Clearing stall)
[5] +AppleUSBOHCI[0x554c000]: clearing endpoint 0:0 stall

Well, I found the error codes in IOReturn.h.

#define kIOReturnNotResponding  iokit_common_err(0x2ed) // device not responding

Oh no...