path: root/License-Clarification.md

# Overview

As raised in #1038 and other issues, the licensing status of QMK is not clear. In an effort to remove ambiguity and to clarify the licensing status of the quantum code we are identifying the providence of our source code files and clarifying what license applies to each one.

# Signoff

This section documents the people who need to sign off on applying the GPL to one or more of their contributions. 

Username | # Lines | Files | Sign Off Date |
---------|---------|-------|---------------|
@Vifon | 231 | quantum/dynamic_macro.h | |
@wez | 37 | quantum/dynamic_macro.h | |
@DidierLoiseau | 563 | quantum/keymap_extras/keymap_canadian_multilingual.h<br>quantum/keymap_extras/keymap_bepo.h | |
@h-youhei | 62 | quantum/keymap_extras/keymap_jp.h | |
@kuel | 240 | quantum/keymap_extras/keymap_unicode_cyrillic.h<br>quantum/keymap_extras/keymap_russian.h | |
@eltang | 155 |  quantum/config_common.h<br>quantum/matrix.c<br>quantum/quantum.c<br>quantum/quantum.h<br>quantum/rgblight.c<br>quantum/rgblight.h<br>quantum/template/config.h | |
@fredizzimo | 112 | quantum/config_common.h<br>quantum/keycode_config.h<br>quantum/keymap.h<br>quantum/keymap_common.c<br>quantum/keymap_common.c<br>quantum/matrix.c<br>quantum/quantum.h<br>quantum/rgblight.c<br>quantum/rgblight.h<br>quantum/api/api_sysex.c | |
@jackhumbert | 2841 | quantum/config_common.h<br>quantum/keycode_config.h<br>quantum/keymap.h<br>quantum/keymap_common.c<br>quantum/light_ws2812.c<br>quantum/light_ws2812.h<br>quantum/matrix.c<br>quantum/quantum.c<br>quantum/quantum.h<br>quantum/quantum_keycodes.h<br>quantum/rgblight.c<br>quantum/rgblight.h<br>quantum/api/api_sysex.c<br>quantum/audio/audio.c<br>quantum/audio/audio.h<br>quantum/audio/audio_pwm.c<br>quantum/audio/audio_pwm.c<br>quantum/audio/voices.c<br>quantum/audio/voices.h<br>quantum/keymap_extras/keymap_colemak.h<br>quantum/keymap_extras/keymap_dvorak.h<br>quantum/keymap_extras/keymap_fr_ch.h<br>quantum/keymap_extras/keymap_french.h<br>quantum/keymap_extras/keymap_french_osx.h<br>quantum/keymap_extras/keymap_german.h<br>quantum/keymap_extras/keymap_german_ch.h<br>quantum/keymap_extras/keymap_german_osx.h<br>quantum/keymap_extras/keymap_neo2.h<br>quantum/keymap_extras/keymap_nordic.h<br>quantum/keymap_extras/keymap_plover.h<br>quantum/keymap_extras/keymap_spanish.h<br>quantum/keymap_extras/keymap_uk.h<br>quantum/process_keycode/process_midi.c<br>quantum/process_keycode/process_music.c<br>quantum/process_keycode/process_tap_dance.c<br>quantum/process_keycode/process_tap_dance.h<br>quantum/process_keycode/process_unicode.c<br>quantum/process_keycode/process_unicode.h<br>quantum/template/config.h<br>quantum/template/template.c<br>quantum/template/template.h | |
@ofples | 1 | quantum/config_common.h | |
@IBnobody | 1491 | quantum/keycode_config.h<br>quantum/matrix.c<br>quantum/quantum.c<br>quantum/audio/audio.c<br>quantum/audio/audio.h<br>quantum/audio/audio_pwm.c<br>quantum/audio/audio_pwm.c<br>quantum/audio/voices.c<br>quantum/audio/voices.h<br>quantum/template/config.h<br>quantum/template/template.c | |
@Wilba6582 | 330 | quantum/keymap.h<br>quantum/keymap_common.c<br>quantum/quantum_keycodes.h | |
@yangliu | 465 | quantum/light_ws2812.c<br>quantum/light_ws2812.h<br>quantum/rgblight.c<br>quantum/rgblight.h | |
@ezuk | 118 | quantum/matrix.c<br>quantum/quantum.c<br>quantum/quantum.h<br>quantum/quantum_keycodes.h<br>quantum/rgblight.c<br>quantum/rgblight.h<br>quantum/keymap_extras/keymap_colemak.h<br>quantum/keymap_extras/keymap_nordic.h |
@yoyoerx | 6 | quantum/matrix.c<br>quantum/template/template.c | |
Gergely Nagy | 380 | quantum/quantum.c<br>quantum/quantum.h<br>quantum/process_keycode/process_tap_dance.c<br>quantum/process_keycode/process_tap_dance.h<br>quantum/process_keycode/process_unicode.c<br>quantum/process_keycode/process_unicode.h | |
Ofer Plesser | 2 | quantum/quantum.c | |
Pavlos Vinieratos | 33 | quantum/quantum.c<br>quantum/quantum.h<br>quantum/process_keycode/process_tap_dance.c<br>quantum/process_keycode/process_tap_dance.h | |
Priyadi Iman Nurcahyo | 96 | quantum/quantum.c<br>quantum/process_keycode/process_unicode.c<br>quantum/process_keycode/process_unicode.h | |
Smilliam | 12 | quantum/quantum.c | |
TerryMathews | 52 | quantum/quantum.c | |
Wojciech Siewierski | 12 | quantum/quantum.c | |
Jordi Orlando | 311 | quantum/rgblight.c | |
Scott Wilson | 3 | quantum/rgblight.c<br>quantum/rgblight.h | |
@skullydazed | 2 | quantum/rgblight.c | |
JeeBak Kim | 8 | quantum/audio/audio_pwm.c | |
Vivien Alger | 2 | quantum/keymap_extras/keymap_bepo.h | |
Jonathan A. Kollasch | 24 | quantum/keymap_extras/keymap_dvorak.h<br>quantum/keymap_extras/keymap_fr_ch.h<br>quantum/keymap_extras/keymap_french.h<br>quantum/keymap_extras/keymap_german.h<br>quantum/keymap_extras/keymap_german_ch.h<br>quantum/keymap_extras/keymap_nordic.h<br>quantum/keymap_extras/keymap_spanish.h<br>quantum/keymap_extras/keymap_uk.h | |
Keller-Laminar | 1 | quantum/keymap_extras/keymap_dvorak.h | |
Vincent Pochet | 96 | quantum/keymap_extras/keymap_fr_ch.h | |
Kévin Letord | 1 | quantum/keymap_extras/keymap_french.h | |
Sébastien Pérochon | 76 | quantum/keymap_extras/keymap_french_osx.h | |
Matthias Schmitt | 100 | quantum/keymap_extras/keymap_german.h<br>quantum/keymap_extras/keymap_neo2.h | |
plgruener | 58 | quantum/keymap_extras/keymap_german.h<br>quantum/keymap_extras/keymap_neo2.h | |
heartsekai | 100 | quantum/keymap_extras/keymap_german_ch.h | |
Stephan Bösebeck | 96 | quantum/keymap_extras/keymap_german_osx.h | |
Andreas Lindé | 2 | quantum/keymap_extras/keymap_nordic.h<br>quantum/keymap_extras/keymap_norwegian.h | |
Fernando Mendonca | 3 | quantum/keymap_extras/keymap_nordic.h | |
joar | 40 | quantum/keymap_extras/keymap_norwegian.h | |
James 'Twey' Kay | 31 | quantum/keymap_extras/keymap_plover.h | |
Rubén Díaz-Jorge | 2 | quantum/keymap_extras/keymap_spanish.h | |
Adam Gausmann | 3 | quantum/process_keycode/process_midi.c | |
Robert Dale | 6 | quantum/process_keycode/process_music.c | |
coderkun | 5 | quantum/process_keycode/process_unicode.c | |
Damien Pollet | 11 | quantum/template/template.c<br>quantum/template/template.h | |
@NoahAndrews | 1 | quantum/template/template.h | |

# Single Author Files

These are the single author files that still need to have their license clarified.

* quantum/dynamic_macro.h: @Vifon
* quantum/pincontrol.h: @wez
* quantum/keymap_extras/keymap_canadian_multilingual.h: @DidierLoiseau
* quantum/keymap_extras/keymap_jp.h: @h-youhei
* quantum/keymap_extras/keymap_unicode_cyrillic.h: @kuel
* quantum/keymap_extras/keymap_russian.h: @kuel

# Multi Author Files

Each file listed below has more than one author and needs to have copyright resolved. The number of lines contributed by each author is shown as determined by:

```git blame <file> | cut -f 2 -d '(' | cut -f 1 -d '2' | sort | uniq -c | sed 's/^ */* /'```

## quantum/config_common.h 

* 24 Eric Tang
* 2 Fred Sundvik
* 58 Jack Humbert
* 1 ofples

## quantum/keycode_config.h 

* 5 IBNobody
* 20 Jack Humbert
* 1 fredizzimo

## quantum/keymap.h 

* 39 Jack Humbert
* 6 Wilba6582
* 8 fredizzimo

## quantum/keymap_common.c 

* 1 Fred Sundvik
* 162 Jack Humbert
* 11 Wilba6582
* 3 fredizzimo

## quantum/light_ws2812.c 

* 163 Jack Humbert
* 168 Yang Liu

## quantum/light_ws2812.h 

* 11 Jack Humbert
* 70 Yang Liu

## quantum/matrix.c 

* 3 Erez Zukerman
* 15 Eric Tang
* 239 IBNobody
* 152 Jack Humbert
* 2 fredizzimo
* 2 yoyoerx

## quantum/quantum.c 

* 38 Erez Zukerman
* 96 Eric Tang
* 49 Gergely Nagy
* 68 IBNobody
* 4 Jack & Erez
* 561 Jack Humbert
* 2 Ofer Plesser
* 14 Pavlos Vinieratos
* 2 Priyadi Iman Nurcahyo
* 12 Smilliam
* 52 TerryMathews
* 12 Wojciech Siewierski

## quantum/quantum.h 

* 23 Erez Zukerman
* 4 Eric Tang
* 1 Fred Sundvik
* 3 Gergely Nagy
* 86 Jack Humbert
* 2 Pavlos Vinieratos
* 5 fredizzimo

## quantum/quantum_keycodes.h 

* 2 Erez Zukerman
* 2 Jack Humbert
* 313 Wilba6582

## quantum/rgblight.c 

* 13 Erez Zukerman
* 5 Eric Tang
* 39 Fred Sundvik
* 101 Jack Humbert
* 311 Jordi Orlando
* 1 Scott Wilson
* 147 Yang Liu
* 2 skullY

## quantum/rgblight.h 

* 3 Erez Zukerman
* 2 Eric Tang
* 6 Fred Sundvik
* 12 Jack Humbert
* 2 Scott Wilson
* 80 Yang Liu

## quantum/api/api_sysex.c 

* 44 Fred Sundvik
* 13 Jack Humbert

## quantum/audio/audio.c 

* 318 IBNobody
* 164 Jack Humbert

## quantum/audio/audio.h 

* 15 IBNobody
* 76 Jack Humbert

## quantum/audio/audio_pwm.c 

* 642 IBNobody
* 1 Jack Humbert

## quantum/audio/song_list.h 

* 101 IBNobody
* 16 Jack Humbert
* 8 JeeBak Kim

## quantum/audio/voices.c 

* 24 IBNobody
* 256 Jack Humbert

## quantum/audio/voices.h 

* 3 IBNobody
* 32 Jack Humbert

## quantum/keymap_extras/keymap_bepo.h 

* 308 Didier Loiseau
* 1 Jack Humbert   
* 2 Vivien Alger

## quantum/keymap_extras/keymap_colemak.h 

* 31 Erez Zukerman
* 44 Jack Humbert

## quantum/keymap_extras/keymap_dvorak.h 

* 69 Jack Humbert
* 15 Jonathan A. Kollasch
* 1 Keller-Laminar

## quantum/keymap_extras/keymap_fr_ch.h 

* 1 Jack Humbert
* 1 Jonathan A. Kollasch
* 96 Vincent Pochet

## quantum/keymap_extras/keymap_french.h 

* 80 Jack Humbert
* 2 Jonathan A. Kollasch
* 1 Kévin Letord

## quantum/keymap_extras/keymap_french_osx.h 

* 1 Jack Humbert
* 76 Sébastien Pérochon

## quantum/keymap_extras/keymap_german.h 

* 1 Jack Humbert
* 1 Jonathan A. Kollasch
* 58 Matthias Schmitt
* 39 plgruener

## quantum/keymap_extras/keymap_german_ch.h 

* 1 Jack Humbert
* 1 Jonathan A. Kollasch
* 100 heartsekai

## quantum/keymap_extras/keymap_german_osx.h 

* 1 Jack Humbert
* 96 Stephan Bösebeck

## quantum/keymap_extras/keymap_neo2.h 

* 2 Jack Humbert
* 42 Matthias Schmitt
* 19 plgruener

## quantum/keymap_extras/keymap_nordic.h 

* 1 Andreas Lindhé
* 1 Erez Zukerman
* 3 Fernando Mendonca
* 53 Jack Humbert
* 1 Jonathan A. Kollasch

## quantum/keymap_extras/keymap_norwegian.h 

* 1 Andreas Lindhé
* 40 joar

## quantum/keymap_extras/keymap_plover.h 

* 1 Jack Humbert
* 31 James ‘Twey’ Kay

## quantum/keymap_extras/keymap_spanish.h 

* 59 Jack Humbert
* 1 Jonathan A. Kollasch
* 2 Rubén Díaz-Jorge

## quantum/keymap_extras/keymap_uk.h 

* 34 Jack Humbert
* 2 Jonathan A. Kollasch

## quantum/process_keycode/process_midi.c 

* 3 Adam Gausmann
* 65 Jack Humbert

## quantum/process_keycode/process_music.c 

* 180 Jack Humbert
* 6 Robert Dale

## quantum/process_keycode/process_tap_dance.c 

* 90 Gergely Nagy
* 38 Jack Humbert
* 8 Pavlos Vinieratos

## quantum/process_keycode/process_tap_dance.h 

* 22 Gergely Nagy
* 41 Jack Humbert
* 9 Pavlos Vinieratos

## quantum/process_keycode/process_unicode.c 

* 176 Gergely Nagy
* 24 Jack Humbert
* 84 Priyadi Iman Nurcahyo
* 5 coderkun

## quantum/process_keycode/process_unicode.h 

* 40 Gergely Nagy
* 117 Jack Humbert
* 10 Priyadi Iman Nurcahyo

## quantum/template/config.h 

* 9 Eric Tang
* 78 IBNobody
* 75 Jack Humbert

## quantum/template/template.c 

* 9 Damien Pollet
* 7 IBNobody
* 8 Jack Humbert
* 4 yoyoerx

## quantum/template/template.h 

* 2 Damien Pollet
* 16 Jack Humbert
* 1 Noah Andrews

# All Single Author Files

These files have only a single author and so clarifying licensing should be pretty straightforward.

* quantum/analog.c: Jack Humbert
* quantum/analog.h: Jack Humbert
* quantum/api.h: Jack Humbert
* quantum/keycode_config.c: Jack Humbert
* quantum/pincontrol.h: Wez Furlong
* quantum/api/api_sysex.h: Jack Humbert
* quantum/audio/luts.c: IBNobody
* quantum/audio/luts.h: IBNobody
* quantum/audio/musical_notes.h: Jack Humbert
* quantum/audio/wave.h: Jack Humbert
* quantum/keymap_extras/keymap_br_abnt2.h: Potiguar Faga
* quantum/keymap_extras/keymap_dvp.h: Artyom Mironov
* quantum/keymap_extras/keymap_jp.h: h-youhei
* quantum/keymap_extras/keymap_unicode_cyrillic.h: kuel
* quantum/process_keycode/process_chording.c: Jack Humbert
* quantum/process_keycode/process_chording.h: Jack Humbert
* quantum/process_keycode/process_leader.c: Jack Humbert
* quantum/process_keycode/process_leader.h: Jack Humbert
* quantum/process_keycode/process_midi.h: Jack Humbert
* quantum/process_keycode/process_music.h: Jack Humbert
* quantum/process_keycode/process_printer.c: Jack Humbert
* quantum/process_keycode/process_printer.h: Jack Humbert
* quantum/process_keycode/process_printer_bb.c: Jack Humbert
* quantum/serial_link/LICENSE: Fred Sundvik
* quantum/serial_link/protocol/frame_router.c: Fred Sundvik
* quantum/serial_link/protocol/frame_router.h: Fred Sundvik
* quantum/serial_link/protocol/frame_validator.c: Fred Sundvik
* quantum/serial_link/protocol/frame_validator.h: Fred Sundvik
* quantum/serial_link/protocol/physical.h: Fred Sundvik
* quantum/serial_link/protocol/triple_buffered_object.c: Fred Sundvik
* quantum/serial_link/protocol/triple_buffered_object.h: Fred Sundvik
* quantum/serial_link/system/serial_link.c: Fred Sundvik
* quantum/serial_link/system/serial_link.h: Fred Sundvik
* quantum/serial_link/tests/byte_stuffer_tests.cpp: Fred Sundvik
* quantum/serial_link/tests/frame_router_tests.cpp: Fred Sundvik
* quantum/serial_link/tests/frame_validator_tests.cpp: Fred Sundvik
* quantum/serial_link/tests/Makefile: Fred Sundvik
* quantum/serial_link/tests/transport_tests.cpp: Fred Sundvik
* quantum/serial_link/tests/triple_buffered_object_tests.cpp: Fred Sundvik
* quantum/template/rules.mk: Fred Sundvik
* quantum/template/keymaps/default/config.h: Jack Humbert
* quantum/template/keymaps/default/Makefile: Jack Humbert
* quantum/template/keymaps/default/readme.md: Jack Humbert
* quantum/tools/eeprom_reset.hex: Jack Humbert
* quantum/tools/readme.md: Jack Humbert
* quantum/visualizer/lcd_backlight.c: Fred Sundvik
* quantum/visualizer/lcd_backlight.h: Fred Sundvik
* quantum/visualizer/led_test.h: Fred Sundvik
* quantum/visualizer/LICENSE.md: Fred Sundvik
* quantum/visualizer/readme.md: Fred Sundvik
* quantum/visualizer/example_integration/callbacks.c: Fred Sundvik
* quantum/visualizer/example_integration/gfxconf.h: Fred Sundvik
* quantum/visualizer/example_integration/lcd_backlight_hal.c: Fred Sundvik
* quantum/visualizer/example_integration/visualizer_user.c: Fred Sundvik

# All Files

## quantum/analog.c 

* 46e7fb2d3ccd699c0a1b1fd9d02860b1f2a44141 Mon Oct 26 14:49:46 2015 -0400 Jack Humbert

## quantum/analog.h 

* 46e7fb2d3ccd699c0a1b1fd9d02860b1f2a44141 Mon Oct 26 14:49:46 2015 -0400 Jack Humbert

## quantum/api.c 

* 7edac212c8ed8442bf4207e70dc8194631b2bf27 Sat Nov 26 15:37:46 2016 -0500 Jack Humbert
* 06c64bbff3e228df542149acde64eadaf59b9b0f Mon Dec 19 11:18:18 2016 -0500 Jack Humbert

## quantum/api.h 

* 7edac212c8ed8442bf4207e70dc8194631b2bf27 Sat Nov 26 15:37:46 2016 -0500 Jack Humbert

## quantum/config_common.h 

* 35a81f5b8b081e1607a7c04489b01f551c3213cc Mon Oct 26 16:32:37 2015 -0400 Jack Humbert
* aaa758f1d3f97dda39879f2b055ad2da9680adfe Mon May 23 20:42:21 2016 -0700 Eric Tang
* 13bb6b4b7fdd2b3e419d0f89c93fb980b00eeb9b Thu Jun 23 22:18:20 2016 -0400 Jack Humbert
* 705c775a4a433249081321cea0c2def2627817dc Sun Aug 21 22:05:55 2016 -0500 IBNobody
* 936a26d04ffa12801031c058f27e221174e3fabd Thu Aug 25 00:15:41 2016 -0500 IBNobody
* 6390033e8688550826a4bd3004a2e76568600657 Mon Nov 21 20:14:16 2016 -0500 Jack Humbert
* 03d6e165bb0baf9d0093250d3c3c0771290df4d6 Fri Nov 25 09:17:40 2016 +0200 ofples
* 0c9d66eb59add717397ba83d508577073412ce86 Fri Nov 25 09:20:41 2016 +0200 ofples
* de1df639535817e17f1c01f07e7a629cec478526 Sat Nov 26 13:55:41 2016 +0700 Priyadi Iman Nurcahyo
* 17acde94ee2695ab69ea336742c904d649dce17c Sat Nov 26 14:02:38 2016 +0700 Priyadi Iman Nurcahyo
* d9d67e7b7686fdcbc7269a76d2a54c42325bdd03 Sat Nov 26 15:26:02 2016 +0700 Priyadi Iman Nurcahyo
* f2214ce1cb6cfe7a0efabe870a2c00fb8451ee80 Sat Nov 26 15:57:48 2016 +0700 Priyadi Iman Nurcahyo
* 6e0f994950435aa5867e7b7ce780186d881d74ac Mon Nov 28 23:51:07 2016 -0500 Jack Humbert
* dd685eceb2045371d38f24d454f1ab08ca7416f4 Thu Dec 29 12:13:30 2016 +0200 Fred Sundvik

## quantum/dynamic_macro.h 

* 39e8e61258b51a2c33a94dd877e983f0b1dae0c1 Thu Aug 18 01:37:13 2016 +0200 Wojciech Siewierski
* 70f32842e5d94f14d05c1f9adcb1b1144a25a132 Sun Oct 9 12:52:39 2016 +0200 Wojciech Siewierski

## quantum/keycode_config.c 

* db32864ce7029d758f57729cc2f75e051a28d0a2 Sat Jun 18 14:30:24 2016 -0400 Jack Humbert

## quantum/keycode_config.h 

* db32864ce7029d758f57729cc2f75e051a28d0a2 Sat Jun 18 14:30:24 2016 -0400 Jack Humbert
* 4d4f7684e684bec319f166121463a88cd4a62703 Fri Jul 1 17:04:53 2016 +0300 fredizzimo
* 558f3ec1eb325caf706efc15e2fab26121aba442 Tue Sep 6 23:19:01 2016 -0500 IBNobody

## quantum/keymap.h 

* db32864ce7029d758f57729cc2f75e051a28d0a2 Sat Jun 18 14:30:24 2016 -0400 Jack Humbert
* 76076db72545bbb649f11394a12721f61579527f Mon Jun 20 22:36:36 2016 -0400 Jack & Erez
* 1a0bac8bccf0e156d2f3c5f14a7214f9677b6370 Tue Jun 21 17:42:29 2016 -0400 Jack Humbert
* 13bb6b4b7fdd2b3e419d0f89c93fb980b00eeb9b Thu Jun 23 22:18:20 2016 -0400 Jack Humbert
* 65faab3b89245f81c50b029ca178aed175d5f330 Wed Jun 29 17:49:41 2016 -0400 Jack Humbert
* 4d4f7684e684bec319f166121463a88cd4a62703 Fri Jul 1 17:04:53 2016 +0300 fredizzimo
* 50c6