diff --git a/monitor/a2dp.c b/monitor/a2dp.c
index 4a1d0e1c4..ac2e1a228 100644
--- a/monitor/a2dp.c
+++ b/monitor/a2dp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2018  Pali Rohár <pali.rohar@gmail.com>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/a2dp.h b/monitor/a2dp.h
index 72a8f1f45..814c8ed90 100644
--- a/monitor/a2dp.h
+++ b/monitor/a2dp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -5,20 +6,6 @@
  *  Copyright (C) 2015  Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 bool a2dp_codec_cap(uint8_t codec, uint8_t losc, struct l2cap_frame *frame);
diff --git a/monitor/analyze.c b/monitor/analyze.c
index 4dc2891a1..784f9a0a4 100644
--- a/monitor/analyze.c
+++ b/monitor/analyze.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/analyze.h b/monitor/analyze.h
index c643d3502..774ac9db5 100644
--- a/monitor/analyze.h
+++ b/monitor/analyze.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 void analyze_trace(const char *path);
diff --git a/monitor/avctp.c b/monitor/avctp.c
index 6c2c2cac0..dc03195a8 100644
--- a/monitor/avctp.c
+++ b/monitor/avctp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/avctp.h b/monitor/avctp.h
index 2613f14f3..1cca5a756 100644
--- a/monitor/avctp.h
+++ b/monitor/avctp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 void avctp_packet(const struct l2cap_frame *frame);
diff --git a/monitor/avdtp.c b/monitor/avdtp.c
index 6a342a282..9fe72d240 100644
--- a/monitor/avdtp.c
+++ b/monitor/avdtp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -5,20 +6,6 @@
  *  Copyright (C) 2015  Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/avdtp.h b/monitor/avdtp.h
index f77d82ee2..1bc4dd03d 100644
--- a/monitor/avdtp.h
+++ b/monitor/avdtp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -5,20 +6,6 @@
  *  Copyright (C) 2015  Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 void avdtp_packet(const struct l2cap_frame *frame);
diff --git a/monitor/bnep.c b/monitor/bnep.c
index 6af54e0c5..3b8b284a9 100644
--- a/monitor/bnep.c
+++ b/monitor/bnep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/bnep.h b/monitor/bnep.h
index 38340d6c1..3ccc1b766 100644
--- a/monitor/bnep.h
+++ b/monitor/bnep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 void bnep_packet(const struct l2cap_frame *frame);
diff --git a/monitor/broadcom.c b/monitor/broadcom.c
index 787ff2950..4f8455583 100644
--- a/monitor/broadcom.c
+++ b/monitor/broadcom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/broadcom.h b/monitor/broadcom.h
index ceda0e18b..5cb51d81d 100644
--- a/monitor/broadcom.h
+++ b/monitor/broadcom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/bt.h b/monitor/bt.h
index 37e81e8a3..aca847d7c 100644
--- a/monitor/bt.h
+++ b/monitor/bt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/control.c b/monitor/control.c
index 273075888..962da4980 100644
--- a/monitor/control.c
+++ b/monitor/control.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/control.h b/monitor/control.h
index ddf485f1f..29616c4f1 100644
--- a/monitor/control.h
+++ b/monitor/control.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/crc.c b/monitor/crc.c
index 912b37ebc..8d0e31db9 100644
--- a/monitor/crc.c
+++ b/monitor/crc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/crc.h b/monitor/crc.h
index 772388b80..c59775100 100644
--- a/monitor/crc.h
+++ b/monitor/crc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/display.c b/monitor/display.c
index 990395425..b11b71d5d 100644
--- a/monitor/display.c
+++ b/monitor/display.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/display.h b/monitor/display.h
index 98073b99e..f3a614b81 100644
--- a/monitor/display.h
+++ b/monitor/display.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdbool.h>
diff --git a/monitor/ellisys.c b/monitor/ellisys.c
index e533eeceb..61ac24c23 100644
--- a/monitor/ellisys.c
+++ b/monitor/ellisys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/ellisys.h b/monitor/ellisys.h
index 8be888dfe..c0c4ff192 100644
--- a/monitor/ellisys.h
+++ b/monitor/ellisys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/hcidump.c b/monitor/hcidump.c
index 8b6f846d3..690b9b913 100644
--- a/monitor/hcidump.c
+++ b/monitor/hcidump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/hcidump.h b/monitor/hcidump.h
index c90865068..d32b33c81 100644
--- a/monitor/hcidump.h
+++ b/monitor/hcidump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 int hcidump_tracing(void);
diff --git a/monitor/hwdb.c b/monitor/hwdb.c
index f2431fad8..22de9edfb 100644
--- a/monitor/hwdb.c
+++ b/monitor/hwdb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/hwdb.h b/monitor/hwdb.h
index 79f505a2d..5789b6507 100644
--- a/monitor/hwdb.h
+++ b/monitor/hwdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/intel.c b/monitor/intel.c
index 41e70ba0c..18840f3e7 100644
--- a/monitor/intel.c
+++ b/monitor/intel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/intel.h b/monitor/intel.h
index 573b23f3f..bf00ad491 100644
--- a/monitor/intel.h
+++ b/monitor/intel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/jlink.c b/monitor/jlink.c
index afa9d9323..9aaa4ebd8 100644
--- a/monitor/jlink.c
+++ b/monitor/jlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -5,20 +6,6 @@
  *  Copyright (C) 2018  Codecoup
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/jlink.h b/monitor/jlink.h
index d7c76704c..e445e553c 100644
--- a/monitor/jlink.h
+++ b/monitor/jlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -5,20 +6,6 @@
  *  Copyright (C) 2018  Codecoup
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 int jlink_init(void);
diff --git a/monitor/keys.c b/monitor/keys.c
index e60aa9386..d2fa3b23f 100644
--- a/monitor/keys.c
+++ b/monitor/keys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/keys.h b/monitor/keys.h
index 61ec50a4c..e40c90fa9 100644
--- a/monitor/keys.h
+++ b/monitor/keys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/l2cap.c b/monitor/l2cap.c
index 41c766863..ca1997a0c 100644
--- a/monitor/l2cap.c
+++ b/monitor/l2cap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/l2cap.h b/monitor/l2cap.h
index 07864caee..e46042db4 100644
--- a/monitor/l2cap.h
+++ b/monitor/l2cap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/ll.c b/monitor/ll.c
index 4b3f567bd..cf93647e0 100644
--- a/monitor/ll.c
+++ b/monitor/ll.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/ll.h b/monitor/ll.h
index 98e0bf489..35d631363 100644
--- a/monitor/ll.h
+++ b/monitor/ll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/lmp.c b/monitor/lmp.c
index 3088c5ee2..0d17f5c98 100644
--- a/monitor/lmp.c
+++ b/monitor/lmp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/lmp.h b/monitor/lmp.h
index 9564c7779..d29ad8e46 100644
--- a/monitor/lmp.h
+++ b/monitor/lmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/main.c b/monitor/main.c
index 24ec3c567..e6a40703c 100644
--- a/monitor/main.c
+++ b/monitor/main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/packet.c b/monitor/packet.c
index bef134095..d83552f74 100644
--- a/monitor/packet.c
+++ b/monitor/packet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/packet.h b/monitor/packet.h
index 3a139ecb7..409bf0e54 100644
--- a/monitor/packet.h
+++ b/monitor/packet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/rfcomm.c b/monitor/rfcomm.c
index 94d28de31..9b88a3440 100644
--- a/monitor/rfcomm.c
+++ b/monitor/rfcomm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/rfcomm.h b/monitor/rfcomm.h
index c15735234..81ab55b21 100644
--- a/monitor/rfcomm.h
+++ b/monitor/rfcomm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #define RFCOMM_SABM	0x2f
diff --git a/monitor/sdp.c b/monitor/sdp.c
index 575eda536..10bc0a121 100644
--- a/monitor/sdp.c
+++ b/monitor/sdp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/sdp.h b/monitor/sdp.h
index c8a9bb0cd..4fffb30f9 100644
--- a/monitor/sdp.h
+++ b/monitor/sdp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 void sdp_packet(const struct l2cap_frame *frame);
diff --git a/monitor/tty.h b/monitor/tty.h
index f0ba0c5c0..87b3fd53c 100644
--- a/monitor/tty.h
+++ b/monitor/tty.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -5,20 +6,6 @@
  *  Copyright (C) 2016  Intel Corporation
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
diff --git a/monitor/vendor.c b/monitor/vendor.c
index 3dda2ae3b..ecbfcf2eb 100644
--- a/monitor/vendor.c
+++ b/monitor/vendor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/monitor/vendor.h b/monitor/vendor.h
index f5792b3c5..c70552b66 100644
--- a/monitor/vendor.h
+++ b/monitor/vendor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  *
  *  BlueZ - Bluetooth protocol stack for Linux
@@ -6,20 +7,6 @@
  *  Copyright (C) 2002-2010  Marcel Holtmann <marcel@holtmann.org>
  *
  *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License as published by the Free Software Foundation; either
- *  version 2.1 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <stdint.h>
