/* sort -k2,2 */
L2CAP_PSM_SDP 0x0001
L2CAP_PSM_RFCOMM 0x0003
L2CAP_PSM_3DSP 0x0021
L2CAP_PSM_IPSP 0x0023
L2CAP_PSM_LE_DYN_START 0x0080
L2CAP_PSM_LE_DYN_END 0x00ff
L2CAP_PSM_DYN_START 0x1001
L2CAP_PSM_AUTO_END 0x10ff
L2CAP_PSM_DYN_END 0xffff