BTMTK_ISOPKT_RUNNING
if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags)) {
clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags))
set_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);