Bluetooth capture setup
Bluetooth capture support is supported on Linux in Wireshark with libpcap 0.9.6 and later, if the kernel includes the BlueZ Bluetooth stack; starting with the 2.4.6 kernel, the BlueZ stack was incorporated into the mainline kernel. If it's supported, and if you have sufficient privileges to capture, there will be interfaces named bluetoothN for various values of N starting with 0.