/* 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