Also, under About this Mac/system report/usb it shows the device but unconfigured like this;
Vendor-Specific Device:
Product ID: 0x1010
Vendor ID: 0x0763 (M-Audio)
Version: 0.01
Speed: Up to 12 Mb/sec
Location ID: 0x14210000 / 25
Current Available (mA): 500
Current Required (mA): Unknown (Device has not been configured)
As a matter of fact i also have an m-audio oxygen 8 controller connected that stopped working and it also has an entry as above. Both m-audio devices.