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Start page on Bluetooth resource manager
/dev/usb/btrm is the IOSU device node for the internal Bluetooth module. It provides an interface to communicate with the Wii Remote, Wii Balance Board, and Wii U Pro controller, which is exposed to Cafe OS by [[padscore.rpl]]. Internally, it uses [[:/dev/uhs|/dev/uhs/1]] to talk to the Bluetooth module, which is connected via internal USB.