This page attempts to explain the basic information you need to know to work with the QMK project. It assumes that you are familiar with navigating a Unix shell, but does not assume you are familiar with C or with compiling using make.
-## Basic QMK structure
+## Basic QMK Structure
QMK is a fork of [Jun Wako](https://github.com/tmk)'s [tmk_keyboard](https://github.com/tmk/tmk_keyboard) project. The original TMK code, with modifications, can be found in the `tmk` folder. The QMK additions to the project may be found in the `quantum` folder. Keyboard projects may be found in the `handwired` and `keyboard` folders.
-### Keyboard project structure
+### Userspace Structure
-Within the folder `keyboards` and its subfolder `handwired` is a directory for each keyboard project, for example `qmk_firmware/keyboards/clueboard`. Within it you'll find the following structure:
+Within the folder `users` is a directory for each user. This is a place for users to put code that they might use between keyboards. See the docs for [Userspace feature](feature_userspace.md) for more information.
+
+### Keyboard Project Structure
+
+Within the folder `keyboards`, its subfolder `handwired` and its vendor and manufacture subdirectories e.g. `clueboard` is a directory for each keyboard project, for example `qmk_firmware/keyboards/clueboard/2x1800`. Within it, you'll find the following structure:
* `keymaps/`: Different keymaps that can be built
-* `rules.mk`: The file that sets the default "make" options. Do not edit this file directly, instead use a keymap specific `Makefile`
+* `rules.mk`: The file that sets the default "make" options. Do not edit this file directly, instead use a keymap specific `rules.mk`.
* `config.h`: The file that sets the default compile time options. Do not edit this file directly, instead use a keymap specific `config.h`.
+* `info.json`: The file used for setting layout for QMK Configurator. See [Configurator Support](reference_configurator_support.md) for more information.
+* `readme.md`: A brief overview of the keyboard.
+* `<keyboardName>.h`: This file is where the keyboard layout is defined against the keyboard's switch matrix.
+* `<keyboardName>.c`: This file is where you can find custom code for the keyboard.
-### Keymap structure
+For more information on project structure, see [QMK Keyboard Guidelines](hardware_keyboard_guidelines.md).
+
+### Keymap Structure
In every keymap folder, the following files may be found. Only `keymap.c` is required, and if the rest of the files are not found the default options will be chosen.
* `rules.mk`: the features of QMK that are enabled
* `readme.md`: a description of your keymap, how others might use it, and explanations of features. Please upload images to a service like imgur.
-# The `config.h` file
+# The `config.h` File
-There are 2 `config.h` locations:
+There are 3 possible `config.h` locations:
* keyboard (`/keyboards/<keyboard>/config.h`)
+* userspace (`/users/<user>/config.h`)
* keymap (`/keyboards/<keyboard>/keymaps/<keymap>/config.h`)
-If the keymap `config.h` exists, that file is included by the build system and the keyboard `config.h` is not included. If you wish to override settings in your keymap's `config.h` you will need to include some glue code:
+The build system automatically picks up the config files in the above order. If you wish to override any setting set by a previous `config.h` you will need to first include some boilerplate code for the settings you wish to change.
```
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include "config_common.h"
+#pragma once
```
-If you want to override a setting from the parent `config.h` file, you need to `#undef` and then `#define` the setting again, like this:
+Then to override a setting from the previous `config.h` file you must `#undef` and then `#define` the setting again.
+
+The boilerplate code and setting look like this together:
+
+```
+#pragma once
-```c
+// overrides go here!
#undef MY_SETTING
#define MY_SETTING 4
```
projects / qmk_firmware.git / blobdiff