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USB Bluetooth for ICS on beagle board

I tried to enable usb bluetooth for ICS on beagleboard, just followed the <TI-Android-ICS-PortingGuide> (http://processors.wiki.ti.com/index.php/TI-Android-ICS-PortingGuide#Bluetooth).

The bluetooth could not be turned on in settings ui and

uim:BT/FM/GPS would be unavailable on system

always reported.

I noticed that the "/sys/devices/platform/kim" does not exist. The st_drv inited but kim_probe was never invoked. Is there any extra steps for porting bluetooth?