/etc/bluetooth/bt_stack.conf
# Enable BtSnoop logging function
# valid value : true, false
BtSnoopLogOutput=true
# BtSnoop log output file
BtSnoopFileName=/sdcard/btsnoop_hci.log
# Preserve existing BtSnoop log before overwriting
BtSnoopSaveLog=true
# Enable trace level reconfiguration function
# Must be present before any TRC_ trace level settings
TraceConf=true
# Trace level configuration
# BT_TRACE_LEVEL_NONE 0 ( No trace messages to be generated )
# BT_TRACE_LEVEL_ERROR 1 ( Error condition trace messages )
# BT_TRACE_LEVEL_WARNING 2 ( Warning condition trace messages )
# BT_TRACE_LEVEL_API 3 ( API traces )
# BT_TRACE_LEVEL_EVENT 4 ( Debug messages for events )
# BT_TRACE_LEVEL_DEBUG 5 ( Full debug messages )
# BT_TRACE_LEVEL_VERBOSE 6 ( Verbose messages ) - Currently supported for TRC_BTAPP only.
TRC_BTM=6
TRC_HCI=6
TRC_L2CAP=6
TRC_RFCOMM=6
TRC_OBEX=6
TRC_AVCT=6
TRC_AVDT=6
TRC_AVRC=6
TRC_AVDT_SCB=6
TRC_AVDT_CCB=6
TRC_A2D=6
TRC_SDP=6
TRC_GATT=6
TRC_SMP=6
TRC_BTAPP=6
TRC_BTIF=6