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authorBartosz Golaszewski <bartosz.golaszewski@linaro.org>2024-04-16 23:21:40 +0200
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2024-04-22 14:04:19 +0200
commit76ecc337c519d65c16e331343c9402f176eead5a (patch)
treeda0a509a670f192d80b828a9c6add5e9b5de1bda
parent6c3d0b644c5622dbe732df27b1babb758a17acbe (diff)
downloadlibgpiod-76ecc337c519d65c16e331343c9402f176eead5a.tar.gz
licensing: relicense C++ bindings under LGPL-2.1-or-later
Commit ea84f882d5d3 ("licensing: relicense C++ library code under LGPL-3.0-or-later") changed the license of C++ bindings in order to solve potential issues with code generated from templates[1], default implementations, etc. However this change makes the bindings less attractive to projects that have strict licensing restrictions and avoid GPL-3.0 code[2]. After talking to Grant Likely I decided that the best approach is to make the bindings available under LGPL-v2.1-or-later and simply let the end user decide which version's text to apply. While at it: tweak the README to also mention that examples are provided under GPL-2.0-or-later. Link: [1] https://www.spinics.net/lists/linux-gpio/msg46605.html Link: [2] https://github.com/brgl/libgpiod/issues/72 Suggested-by: Walter Lozano <walter.lozano@collabora.com> Suggested-by: Grant Likely <grant.likely@linaro.org> Acked-by: Kent Gibson <warthog618@gmail.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Acked-by: Grant Likely <grant.likely@linaro.org> Link: https://lore.kernel.org/r/20240416212141.6683-2-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
-rw-r--r--COPYING11
-rw-r--r--LICENSES/LGPL-3.0-or-later.txt165
-rw-r--r--bindings/cxx/chip-info.cpp2
-rw-r--r--bindings/cxx/chip.cpp2
-rw-r--r--bindings/cxx/edge-event-buffer.cpp2
-rw-r--r--bindings/cxx/edge-event.cpp2
-rw-r--r--bindings/cxx/exception.cpp2
-rw-r--r--bindings/cxx/gpiod.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/chip-info.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/chip.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/edge-event-buffer.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/edge-event.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/exception.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/info-event.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/line-config.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/line-info.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/line-request.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/line-settings.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/line.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/misc.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/request-builder.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/request-config.hpp2
-rw-r--r--bindings/cxx/gpiodcxx/timestamp.hpp2
-rw-r--r--bindings/cxx/info-event.cpp2
-rw-r--r--bindings/cxx/internal.cpp2
-rw-r--r--bindings/cxx/internal.hpp2
-rw-r--r--bindings/cxx/line-config.cpp2
-rw-r--r--bindings/cxx/line-info.cpp2
-rw-r--r--bindings/cxx/line-request.cpp2
-rw-r--r--bindings/cxx/line-settings.cpp2
-rw-r--r--bindings/cxx/line.cpp2
-rw-r--r--bindings/cxx/misc.cpp2
-rw-r--r--bindings/cxx/request-builder.cpp2
-rw-r--r--bindings/cxx/request-config.cpp2
-rw-r--r--bindings/cxx/tests/gpiosim.cpp2
-rw-r--r--bindings/cxx/tests/gpiosim.hpp2
-rw-r--r--bindings/cxx/tests/helpers.cpp2
-rw-r--r--bindings/cxx/tests/helpers.hpp2
38 files changed, 37 insertions, 211 deletions
diff --git a/COPYING b/COPYING
index 87a9de53..84b4fc6d 100644
--- a/COPYING
+++ b/COPYING
@@ -7,7 +7,7 @@ or any later version according with:
LICENSES/LGPL-2.1-or-later.txt
-gpio-tools and test suites are provided under:
+gpio-tools, test suites and examples are provided under:
SPDX-License-Identifier: GPL-2.0-or-later
@@ -16,15 +16,6 @@ later version according with:
LICENSES/GPL-2.0-or-later.txt
-C++ bindings to libgpiod are provided under:
-
- SPDX-License-Identifier: LGPL-3.0-or-later
-
-Being under the terms of the GNU Lesser General Public License version 3.0
-or any later version according with:
-
- LICENSES/LGPL-3.0-or-later.txt
-
The Linux Kernel uAPI headers are provided under:
SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note
diff --git a/LICENSES/LGPL-3.0-or-later.txt b/LICENSES/LGPL-3.0-or-later.txt
deleted file mode 100644
index 0a041280..00000000
--- a/LICENSES/LGPL-3.0-or-later.txt
+++ /dev/null
@@ -1,165 +0,0 @@
- GNU LESSER GENERAL PUBLIC LICENSE
- Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-
- This version of the GNU Lesser General Public License incorporates
-the terms and conditions of version 3 of the GNU General Public
-License, supplemented by the additional permissions listed below.
-
- 0. Additional Definitions.
-
- As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the GNU
-General Public License.
-
- "The Library" refers to a covered work governed by this License,
-other than an Application or a Combined Work as defined below.
-
- An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
-Defining a subclass of a class defined by the Library is deemed a mode
-of using an interface provided by the Library.
-
- A "Combined Work" is a work produced by combining or linking an
-Application with the Library. The particular version of the Library
-with which the Combined Work was made is also called the "Linked
-Version".
-
- The "Minimal Corresponding Source" for a Combined Work means the
-Corresponding Source for the Combined Work, excluding any source code
-for portions of the Combined Work that, considered in isolation, are
-based on the Application, and not on the Linked Version.
-
- The "Corresponding Application Code" for a Combined Work means the
-object code and/or source code for the Application, including any data
-and utility programs needed for reproducing the Combined Work from the
-Application, but excluding the System Libraries of the Combined Work.
-
- 1. Exception to Section 3 of the GNU GPL.
-
- You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
-
- 2. Conveying Modified Versions.
-
- If you modify a copy of the Library, and, in your modifications, a
-facility refers to a function or data to be supplied by an Application
-that uses the facility (other than as an argument passed when the
-facility is invoked), then you may convey a copy of the modified
-version:
-
- a) under this License, provided that you make a good faith effort to
- ensure that, in the event an Application does not supply the
- function or data, the facility still operates, and performs
- whatever part of its purpose remains meaningful, or
-
- b) under the GNU GPL, with none of the additional permissions of
- this License applicable to that copy.
-
- 3. Object Code Incorporating Material from Library Header Files.
-
- The object code form of an Application may incorporate material from
-a header file that is part of the Library. You may convey such object
-code under terms of your choice, provided that, if the incorporated
-material is not limited to numerical parameters, data structure
-layouts and accessors, or small macros, inline functions and templates
-(ten or fewer lines in length), you do both of the following:
-
- a) Give prominent notice with each copy of the object code that the
- Library is used in it and that the Library and its use are
- covered by this License.
-
- b) Accompany the object code with a copy of the GNU GPL and this license
- document.
-
- 4. Combined Works.
-
- You may convey a Combined Work under terms of your choice that,
-taken together, effectively do not restrict modification of the
-portions of the Library contained in the Combined Work and reverse
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-the following:
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- a) Give prominent notice with each copy of the Combined Work that
- the Library is used in it and that the Library and its use are
- covered by this License.
-
- b) Accompany the Combined Work with a copy of the GNU GPL and this license
- document.
-
- c) For a Combined Work that displays copyright notices during
- execution, include the copyright notice for the Library among
- these notices, as well as a reference directing the user to the
- copies of the GNU GPL and this license document.
-
- d) Do one of the following:
-
- 0) Convey the Minimal Corresponding Source under the terms of this
- License, and the Corresponding Application Code in a form
- suitable for, and under terms that permit, the user to
- recombine or relink the Application with a modified version of
- the Linked Version to produce a modified Combined Work, in the
- manner specified by section 6 of the GNU GPL for conveying
- Corresponding Source.
-
- 1) Use a suitable shared library mechanism for linking with the
- Library. A suitable mechanism is one that (a) uses at run time
- a copy of the Library already present on the user's computer
- system, and (b) will operate properly with a modified version
- of the Library that is interface-compatible with the Linked
- Version.
-
- e) Provide Installation Information, but only if you would otherwise
- be required to provide such information under section 6 of the
- GNU GPL, and only to the extent that such information is
- necessary to install and execute a modified version of the
- Combined Work produced by recombining or relinking the
- Application with a modified version of the Linked Version. (If
- you use option 4d0, the Installation Information must accompany
- the Minimal Corresponding Source and Corresponding Application
- Code. If you use option 4d1, you must provide the Installation
- Information in the manner specified by section 6 of the GNU GPL
- for conveying Corresponding Source.)
-
- 5. Combined Libraries.
-
- You may place library facilities that are a work based on the
-Library side by side in a single library together with other library
-facilities that are not Applications and are not covered by this
-License, and convey such a combined library under terms of your
-choice, if you do both of the following:
-
- a) Accompany the combined library with a copy of the same work based
- on the Library, uncombined with any other library facilities,
- conveyed under the terms of this License.
-
- b) Give prominent notice with the combined library that part of it
- is a work based on the Library, and explaining where to find the
- accompanying uncombined form of the same work.
-
- 6. Revised Versions of the GNU Lesser General Public License.
-
- The Free Software Foundation may publish revised and/or new versions
-of the GNU Lesser General Public License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
-
- Each version is given a distinguishing version number. If the
-Library as you received it specifies that a certain numbered version
-of the GNU Lesser General Public License "or any later version"
-applies to it, you have the option of following the terms and
-conditions either of that published version or of any later version
-published by the Free Software Foundation. If the Library as you
-received it does not specify a version number of the GNU Lesser
-General Public License, you may choose any version of the GNU Lesser
-General Public License ever published by the Free Software Foundation.
-
- If the Library as you received it specifies that a proxy can decide
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-Library.
diff --git a/bindings/cxx/chip-info.cpp b/bindings/cxx/chip-info.cpp
index c4f0ab5e..93dd6f5d 100644
--- a/bindings/cxx/chip-info.cpp
+++ b/bindings/cxx/chip-info.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <ostream>
diff --git a/bindings/cxx/chip.cpp b/bindings/cxx/chip.cpp
index d6a3a439..8086839e 100644
--- a/bindings/cxx/chip.cpp
+++ b/bindings/cxx/chip.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <ostream>
diff --git a/bindings/cxx/edge-event-buffer.cpp b/bindings/cxx/edge-event-buffer.cpp
index c7347a22..0d5cb36a 100644
--- a/bindings/cxx/edge-event-buffer.cpp
+++ b/bindings/cxx/edge-event-buffer.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <iterator>
diff --git a/bindings/cxx/edge-event.cpp b/bindings/cxx/edge-event.cpp
index 5ff3af26..9ef311cd 100644
--- a/bindings/cxx/edge-event.cpp
+++ b/bindings/cxx/edge-event.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <map>
diff --git a/bindings/cxx/exception.cpp b/bindings/cxx/exception.cpp
index 6957e783..378b249a 100644
--- a/bindings/cxx/exception.cpp
+++ b/bindings/cxx/exception.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include "internal.hpp"
diff --git a/bindings/cxx/gpiod.hpp b/bindings/cxx/gpiod.hpp
index b090af46..91e41a53 100644
--- a/bindings/cxx/gpiod.hpp
+++ b/bindings/cxx/gpiod.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/chip-info.hpp b/bindings/cxx/gpiodcxx/chip-info.hpp
index b6bd0f82..e740e940 100644
--- a/bindings/cxx/gpiodcxx/chip-info.hpp
+++ b/bindings/cxx/gpiodcxx/chip-info.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/chip.hpp b/bindings/cxx/gpiodcxx/chip.hpp
index 297db3db..4d674762 100644
--- a/bindings/cxx/gpiodcxx/chip.hpp
+++ b/bindings/cxx/gpiodcxx/chip.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/edge-event-buffer.hpp b/bindings/cxx/gpiodcxx/edge-event-buffer.hpp
index 025517f2..2482e8a6 100644
--- a/bindings/cxx/gpiodcxx/edge-event-buffer.hpp
+++ b/bindings/cxx/gpiodcxx/edge-event-buffer.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/edge-event.hpp b/bindings/cxx/gpiodcxx/edge-event.hpp
index 4fde5615..47c256ad 100644
--- a/bindings/cxx/gpiodcxx/edge-event.hpp
+++ b/bindings/cxx/gpiodcxx/edge-event.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/exception.hpp b/bindings/cxx/gpiodcxx/exception.hpp
index e89b384d..34737d2f 100644
--- a/bindings/cxx/gpiodcxx/exception.hpp
+++ b/bindings/cxx/gpiodcxx/exception.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/info-event.hpp b/bindings/cxx/gpiodcxx/info-event.hpp
index e99cbc4d..69b88b69 100644
--- a/bindings/cxx/gpiodcxx/info-event.hpp
+++ b/bindings/cxx/gpiodcxx/info-event.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/line-config.hpp b/bindings/cxx/gpiodcxx/line-config.hpp
index 8a3335c9..58c9d87f 100644
--- a/bindings/cxx/gpiodcxx/line-config.hpp
+++ b/bindings/cxx/gpiodcxx/line-config.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/line-info.hpp b/bindings/cxx/gpiodcxx/line-info.hpp
index 26d25a9b..8b10dc44 100644
--- a/bindings/cxx/gpiodcxx/line-info.hpp
+++ b/bindings/cxx/gpiodcxx/line-info.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/line-request.hpp b/bindings/cxx/gpiodcxx/line-request.hpp
index dfe3e0f0..fcc4e0ee 100644
--- a/bindings/cxx/gpiodcxx/line-request.hpp
+++ b/bindings/cxx/gpiodcxx/line-request.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/line-settings.hpp b/bindings/cxx/gpiodcxx/line-settings.hpp
index bacf359e..1004ccdf 100644
--- a/bindings/cxx/gpiodcxx/line-settings.hpp
+++ b/bindings/cxx/gpiodcxx/line-settings.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/line.hpp b/bindings/cxx/gpiodcxx/line.hpp
index 5d0752a0..28105714 100644
--- a/bindings/cxx/gpiodcxx/line.hpp
+++ b/bindings/cxx/gpiodcxx/line.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/misc.hpp b/bindings/cxx/gpiodcxx/misc.hpp
index 1e41e9b0..eab8eba2 100644
--- a/bindings/cxx/gpiodcxx/misc.hpp
+++ b/bindings/cxx/gpiodcxx/misc.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/request-builder.hpp b/bindings/cxx/gpiodcxx/request-builder.hpp
index 90cc8f04..192bd91a 100644
--- a/bindings/cxx/gpiodcxx/request-builder.hpp
+++ b/bindings/cxx/gpiodcxx/request-builder.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/request-config.hpp b/bindings/cxx/gpiodcxx/request-config.hpp
index b099eb15..6ebbf996 100644
--- a/bindings/cxx/gpiodcxx/request-config.hpp
+++ b/bindings/cxx/gpiodcxx/request-config.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/gpiodcxx/timestamp.hpp b/bindings/cxx/gpiodcxx/timestamp.hpp
index 7143ab30..fcb4d8d6 100644
--- a/bindings/cxx/gpiodcxx/timestamp.hpp
+++ b/bindings/cxx/gpiodcxx/timestamp.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl> */
/**
diff --git a/bindings/cxx/info-event.cpp b/bindings/cxx/info-event.cpp
index 0b19ee9d..1f6d0d79 100644
--- a/bindings/cxx/info-event.cpp
+++ b/bindings/cxx/info-event.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <map>
diff --git a/bindings/cxx/internal.cpp b/bindings/cxx/internal.cpp
index 9f1f38f3..237d5d58 100644
--- a/bindings/cxx/internal.cpp
+++ b/bindings/cxx/internal.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <map>
diff --git a/bindings/cxx/internal.hpp b/bindings/cxx/internal.hpp
index db78af6e..b64daf19 100644
--- a/bindings/cxx/internal.hpp
+++ b/bindings/cxx/internal.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
#ifndef __LIBGPIOD_CXX_INTERNAL_HPP__
diff --git a/bindings/cxx/line-config.cpp b/bindings/cxx/line-config.cpp
index 1179e0a7..7e3dc8c2 100644
--- a/bindings/cxx/line-config.cpp
+++ b/bindings/cxx/line-config.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <cstdlib>
diff --git a/bindings/cxx/line-info.cpp b/bindings/cxx/line-info.cpp
index 9931ed0d..2117f68c 100644
--- a/bindings/cxx/line-info.cpp
+++ b/bindings/cxx/line-info.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <map>
diff --git a/bindings/cxx/line-request.cpp b/bindings/cxx/line-request.cpp
index e8e0b96b..f6b0a66f 100644
--- a/bindings/cxx/line-request.cpp
+++ b/bindings/cxx/line-request.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <iterator>
diff --git a/bindings/cxx/line-settings.cpp b/bindings/cxx/line-settings.cpp
index 30d78999..300858ab 100644
--- a/bindings/cxx/line-settings.cpp
+++ b/bindings/cxx/line-settings.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <map>
diff --git a/bindings/cxx/line.cpp b/bindings/cxx/line.cpp
index d99e8fa9..d6a92c1f 100644
--- a/bindings/cxx/line.cpp
+++ b/bindings/cxx/line.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <iterator>
diff --git a/bindings/cxx/misc.cpp b/bindings/cxx/misc.cpp
index dde48e0e..eba0b46f 100644
--- a/bindings/cxx/misc.cpp
+++ b/bindings/cxx/misc.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include "internal.hpp"
diff --git a/bindings/cxx/request-builder.cpp b/bindings/cxx/request-builder.cpp
index d11e47b3..87ee2fea 100644
--- a/bindings/cxx/request-builder.cpp
+++ b/bindings/cxx/request-builder.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <ostream>
diff --git a/bindings/cxx/request-config.cpp b/bindings/cxx/request-config.cpp
index e578b15c..b44b8b6f 100644
--- a/bindings/cxx/request-config.cpp
+++ b/bindings/cxx/request-config.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021 Bartosz Golaszewski <brgl@bgdev.pl>
#include <ostream>
diff --git a/bindings/cxx/tests/gpiosim.cpp b/bindings/cxx/tests/gpiosim.cpp
index 7267e6d5..4bda5a2d 100644
--- a/bindings/cxx/tests/gpiosim.cpp
+++ b/bindings/cxx/tests/gpiosim.cpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl> */
#include <map>
diff --git a/bindings/cxx/tests/gpiosim.hpp b/bindings/cxx/tests/gpiosim.hpp
index 320ae96a..8151af6c 100644
--- a/bindings/cxx/tests/gpiosim.hpp
+++ b/bindings/cxx/tests/gpiosim.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl> */
#ifndef __GPIOD_CXX_GPIOSIM_HPP__
diff --git a/bindings/cxx/tests/helpers.cpp b/bindings/cxx/tests/helpers.cpp
index 6534fdb8..eb2c3db2 100644
--- a/bindings/cxx/tests/helpers.cpp
+++ b/bindings/cxx/tests/helpers.cpp
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
+// SPDX-License-Identifier: LGPL-2.1-or-later
// SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include "helpers.hpp"
diff --git a/bindings/cxx/tests/helpers.hpp b/bindings/cxx/tests/helpers.hpp
index 157d2218..62d98270 100644
--- a/bindings/cxx/tests/helpers.hpp
+++ b/bindings/cxx/tests/helpers.hpp
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
/* SPDX-FileCopyrightText: 2021-2022 Bartosz Golaszewski <brgl@bgdev.pl> */
#ifndef __GPIOD_CXX_TEST_HELPERS_HPP__