Sys-con

Connect any USB controller to your Nintendo Switch !

Support any controller: PC controllers, Wheels, Dualshock 3, Dualshock 4, Dualsense (PS5), XBOX, XBOX360, XBOXONE, ...

Description

Sys-con is a Nintendo Switch module that adds support for all HID and XID joysticks and gamepads to the Nintendo Switch. Only USB connection is supported (For Bluetooth connection prefer to use ndeadly's MissionControl)

Installation

Download the latest zip from the releases page. Extract it to your SD card root folder and boot/reboot your switch.

Configuration

sys-con comes with a configuration folder located in /config/sys-con/. It contains configuration for controllers (Button mappings, sticks configuration, triggers configuration, deadzones...).

The configuration is loaded in the following way:

The [global] section is only loaded once, when the switch boots, so if you want to apply a setting, you have to reboot the switch.
Other sections are for controller configuration, they are loaded each time you plug a controller, so if you want to apply a setting you will have to unplug and then replug your controller to apply it.

When a new controller is plugged, the configuration is loaded in below order

First it load the [default] section
Then it will load the [VID-PID] section
If [VID-PID] contains a [profile], it will load the [profile] then load [VID-PID].

In other words, the loading order is: [Default] [Profile] [VID-PID]. If you want to override a setting for only 1 controller, it's adviced to change the configuration in [VID-PID] in order to not impact others controllers

Logs

In case of issue, you can look at the logs in /config/sys-con/log.log (On your SDCard). The logs are automatically created with a log level equal to Info. For more verbose logs, edit /config/sys-con/config.ini and set:

[global]
log_level=0

Reboot the Nintendo Switch.

Important note: If you enable the trace(log_level=0) or debug(log_level=1) log level, sys-con will automatically increase the polling frequency to 100ms (for debug) and 500ms (for trace). This will add a lot of latency to your controller (this isn't a problem and is expected). So, if you want to press a button, you have to hold it down for 1 second. These log levels (trace and debug) cannot be used to play a game, they are for debugging purposes only.

Features

HID joystick/gamepad/wheels supported (PC Controller compatible)
PS and XBOXs controllers supported
Custom key mapping using VID/PID and profile.
Automatically add new controllers (Try to determine the best driver)
Configurable deadzone
Configurable polling frequency
Configurable controller color using #RGBA
Rumble

Supported controller

All PC Controllers
All Playstation Controllers
All Xbox Controllers
Wheels

A complete list of tested controller is available here

Configure a controller

When a new controller is connected, sys-con tries to determine the best profile for this new controller. In most cases the dpad and joystick will work fine, the buttons may not be mapped correctly by default (and in rare cases the right stick may be reversed or not working). If this is the case, you will need to map the buttons yourself using the procedure below:

Method 1 (Directly from the switch)

Connect your controller to the switch
On the switch, go to Settings -> Controllers & Sensors > Test Input Devices
Press the button and try to understand the correct mapping.
On your SDCard, edit /config/sys-con/config.ini and find your controller's [vid-pid] section (most likely at the end of the file). Note: A new section is automatically created if the controller is not known to sys-con. This means that your controller will most likely be the last one (at the end).

Typical configuration will look like

[0810-0001]
B=1
A=2
Y=3
X=4
L=5
R=6
ZL=7
ZR=8
minus=9
plus=10
home=11
capture=12
rstick_left=-Rz
rstick_right=+Rz
rstick_up=+Z
rstick_down=-Z

Where ButtonName (A, B, Y, X ...) need to be assign to a ButtonID (1,2,3,4,5 ...) Now, according to what you found in step 2, you need to match ButtonName with ButtonID. For example, if you found that 'B' is reversed with 'A', just swap the ButtonID:

B=2
A=1

Method 2 (From a windows PC)

Connect your controller to your PC
Go to 'Control Panel' > 'Device Manager' and find your USB device under 'Human Interface Devices'.
Double click on the device or right click and select Properties.
Go to the 'Details' tab and select 'Hardware IDs' to view its PID and VID. The PID/VID should look like "HID\VID_0810&PID_0001&...", which becomes: [0810-0001].
Open "joy.cpl" (either from Win+R or directly from the Start menu).
Select your controller and click on "Properties"
Here you should see a panel with ButtonID (1, 2, 3 ...), press the button and make a note of them (which button is assigned to which ID).
Now edit /config/sys-con/config.ini on your switch sdcard and edit your controller's vid-pid section:

[0810-0001]
B=3
A=2
Y=4
X=1
L=7
R=8
ZL=5
ZR=6
minus=9
plus=10
home=11
capture=12
rstick_left=-Z
rstick_right=+Z
rstick_up=+Rz
rstick_down=-Rz

Where ButtonID (1,2,3,4, ...) is the key ID noted in step 7. Note: Depending to the controller, this windows procedure might not works. If the mapping is incorrect, switch to Method 1

Button mapping

List of possible mappable switch buttons:

lstick_left=
lstick_right=
lstick_up=
lstick_down=
rstick_left=
rstick_right=
rstick_up=
rstick_down=
B=
A=
Y=
X=
L=
R=
ZL=
ZR=
minus=
plus=
lstick_click=
rstick_click=
dpad_up=
dpad_down=
dpad_left=
dpad_right=
capture=
home=
simulate_home=
simulate_capture=

List of possible values:

1 to 31: Represent the Button ID of the controller
Z, -Z, Rz, -Rz, Rx, -Rx, Ry, -Ry, Slider, -Slider, Dial, -Dial: Repesent the analog part of the controller (Joystick, ...)
32 to 35: Represent the hat switch of the controller (Most of the time equivalent to dpad) - 32, 33, 34, 35 represent dpad_up, dpad_down, dpad_left, dpad_right

Deadzone & Factor

Additionnaly, you can configure deadzone and/or factor for every analog.

Deadzone increases the area around the neutral position of your analog stick where any movement is ignored. This helps prevent unintentional input, ensuring only deliberate movements are registered by the controller.
Factor adjusts the scaling of the analog stick's input. It can be increased or reduced to compensate if your controller isn't reaching its full range of motion (e.g., setting it to 110 means the controller will report 110% of its actual range).

deadzone_x=20
deadzone_y=20
deadzone_z=20
deadzone_rz=20
deadzone_rx=5
deadzone_ry=5
deadzone_slider=20
deadzone_dial=20

factor_x=100
factor_y=100
factor_z=100
factor_rz=100
factor_rx=100
factor_ry=100
factor_slider=100
factor_dial=100

All these values are in percentages Typical deadzone range: 0% to 30% Typical Factor range: 100% to 150%

Home & Capture Shortcuts

By default, the HOME and CAPTURE can be triggered by pressing Minus + DPAD_UP and Minus + DPAD_DOWN, respectively. Minus button is often mapped to the select button.

Troubleshooting

For common issues a troubleshooting guide is available: Troubleshooting

Contribution

All contributions are welcome, you can be a simple user or developer, if you did some mapping work in the config.ini or if you have any feedback, feel free to share it in Discussions or submit a Pull request

Building (For developers)

Don't download the project as ZIP as it will not copy submodules properly, prefer a git clone: git clone --recurse-submodules -j8 https://github.com/o0Zz/sys-con.git

Like all other switch projects, you will need devkitA64 set up on your system.

Setup your environment on windows:

Full procedure here: https://devkitpro.org/wiki/devkitPro_pacman

Add these variables to your environement system

DEVKITPRO=/opt/devkitpro
DEVKITARM=/opt/devkitpro/devkitARM
DEVKITPPC=/opt/devkitpro/devkitPPC

Download and install msys64: https://www.msys2.org/#installation
Open msys and type:

pacman-key --recv BC26F752D25B92CE272E0F44F7FD5492264BB9D0 --keyserver keyserver.ubuntu.com
pacman-key --lsign BC26F752D25B92CE272E0F44F7FD5492264BB9D0
wget https://pkg.devkitpro.org/devkitpro-keyring.pkg.tar.xz
pacman -U devkitpro-keyring.pkg.tar.xz
echo "[dkp-libs]" >> /etc/pacman.conf
echo "Server = https://pkg.devkitpro.org/packages" >> /etc/pacman.conf
echo "[dkp-windows]" >> /etc/pacman.conf
echo "Server = https://pkg.devkitpro.org/packages/windows/$arch/" >> /etc/pacman.conf
pacman -Syu
pacman -S switch-dev

Install extra dependencies for sys-con

Open MSYS2 console from devkitA64 and type below commands:

pacman -S make
pacman -S git
pacman -S switch-libjpeg-turbo
pacman -S zip
make -C lib/libnx install

Build the project with Visual Studio Code

You need to select msys as default terminal in VSCode:

CTRL+SHIFT+P
Select "Terminal: Select default profile"
Select "msys2"

Then build:

CTRL+SHIFT+P
Select "Tasks: Run tasks"
Select "Build Release"

Build the project directly from MSYS

Open MSYS console, move to the project root directory and use one of the following commands:

make -j8: Build the project
make clean: Cleans the project files (but not the dependencies).
make mrproper: Cleans the project files and the dependencies.
syscon.sh build: Build and package sys-con (Similar to github release packages)

Output folder will be there: out/ For an in-depth explanation of how sys-con works, see here.

Debug the application

In order to debug the applicaiton, you can directly refer to the logs available there: /config/sys-con/log.log.

Credits

Texita For his contribution in controllers testings and mappings

Support

If you want to support this work

o0Zz / sys-con