diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..36ddc68
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+remotegamepad
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
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+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+
+ Copyright (C)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see .
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ Copyright (C)
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..bd2abe9
--- /dev/null
+++ b/README.md
@@ -0,0 +1,121 @@
+# remotegamepad
+
+Remote Gamepad allows you or your friends to use any browser-supported gamepad
+to mimic a Nintendo Switch Pro Controller by using a Raspberry Pi as a relay.
+
+
+
+## How It Works
+
+* Web browsers have a [Gamepad API](https://caniuse.com/gamepad). You can check if your gamepad/controller is supported at [Gamepad Tester](https://gamepad-tester.com/).
+* Inexpensive devices such as the Raspberry Pi Zero W are capable of imitating a Nintendo Switch Pro Controller when placed in OTG/USB gadget mode.
+* Remote Gamepad provides some glue between the two by setting up button mapping and sending a stream of controller data to the Raspberry Pi which in turn will relay it to the Switch via USB.
+
+If you have a capture card and a low latency way to share the video stream, you
+can game with friends who don't have a Switch over the Internet. Map/redirect a
+port on your router/gateway to port 8085 on your Raspberry Pi and have your
+friend connect to it with their browser.
+
+## Requirements
+
+* Nintendo Switch
+* Nintendo Switch Dock
+* Raspberry Pi Zero W, Raspberry Pi 4 Model B, or other board cable of OTG mode+network
+* Browser support for your controller/gamepad
+
+## Pi Setup
+
+Enable dwc2 USB controller driver
+
+ echo "dtoverlay=dwc2" | sudo tee -a /boot/config.txt
+
+Enable needed kernel modules
+
+ echo "dwc2" | sudo tee -a /etc/modules.d/dwc2.conf
+ echo "libcomposite" | sudo tee -a /etc/modules.d/libcomposite.conf
+
+Reboot for changes to take effect
+
+ sudo reboot
+
+Download [add_procon_gadget.sh](https://gist.github.com/mzyy94/60ae253a45e2759451789a117c59acf9#file-add_procon_gadget-sh)
+and run it with root privileges. By default the resulting device, `/dev/hidg0` can only be used by root. You should chown/chmod like so:
+
+ sudo chown root:dialout /dev/hidg0
+ sudo chmod 660 /dev/hidg0
+
+If you're going to be using the setup long-term, a udev rule should be used instead.
+
+## Launch
+
+[Download the release](https://github.com/jolan/remotegamepad/releases), extract it,
+`cd` into the directory and run `./remotegamepad`
+
+Or get the source:
+
+ go get -u -v github.com/jolan/remotepamepad
+
+And then build and run it:
+
+ cd ~/go/src/github.com/jolan/remotegamepad && go build && ./remotegamepad
+
+Or cross-compile it and then copy everything to the Raspberry Pi:
+
+ env GOOS=linux GOARCH=arm GOARM=6 go build
+
+The binary expects to find `webroot` in the same directory that is run from.
+
+Finally, enter the URL to your Raspberry Pi (e.g. http://192.0.2.53:8085) into your browser.
+
+## Adding A Profile For A Controller
+
+1. Go to https://gamepad-tester.com/.
+2. Copy/paste the full controller name and annotate the button layout for your controller in gamepadStateSend().
+3. Add shortname to gamepadShortName().
+
+## Limitations
+
+* Non-Switch controllers cannot be used to wake the system from sleep.
+* Starting a session requires the Switch to be out of sleep mode.
+* At the moment, the supported controller list is hardcoded and tiny.
+* Can only use a single gamepad per computer (seems to be a browser limitation).
+* Every remote gamepad requires their own Raspberry Pi/relay device.
+
+## Roadmap
+
+* Add profiles for common controllers like Wii U, DualShock, Xbox 360, etc.
+* Add button mapping dialog for controllers using the default profile.
+* Improve binary release with systemd service, config/logging options, udev rule, etc.
+* Code cleanup.
+* Add mouse/keyboard support.
+* Test on non-Chrome browsers to check for bugs/quirks.
+* Determine if multiple controllers-on-a-single is possible.
+* Add audio/video streaming support.
+* Maybe support consoles other than the Switch one day.
+
+## Acknowledgements
+
+@mzyy94 - remotegamepad borrows much of the functionality from his work.
+
+* https://github.com/mzyy94/nscon
+* https://github.com/mzyy94/ns-remote
+* https://mzyy94.com/blog/2020/03/20/nintendo-switch-pro-controller-usb-gadget/
+* https://mzyy94.com/blog/2020/04/17/nintendo-switch-audio-uac-gadget/
+* https://mzyy94.com/blog/2020/05/11/play-nintendo-switch-on-smartphone/
+* https://mzyy94.com/blog/2020/05/12/raspberry-pi-hdmi-edid-cec/
+
+Thanks to others for precursor/similar/inspiring work:
+
+* @dekuNekum - https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
+* @shinyquagsire23 - https://github.com/shinyquagsire23/HID-Joy-Con-Whispering
+* @Xfennec - https://gist.github.com/Xfennec/e1215febb15b40c21bf029b38a31640b
+* @mumumusuc - https://github.com/mumumusuc/pi-joystick
+* @omakoto - https://github.com/omakoto/raspberry-switch-control
+* @mart1nro - https://github.com/mart1nro/joycontrol
+* @javmarina - https://github.com/javmarina/Nintendo-Switch-Remote-Control
+* @ndeadly - https://github.com/ndeadly/MissionControl
+* Parsec - https://www.youtube.com/watch?v=uTlwVyWobRc
+
+## License
+
+[GPL v3](LICENSE)
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..6fca9de
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,9 @@
+module github.com/jolan/remotegamepad
+
+go 1.15
+
+require (
+ github.com/gorilla/mux v1.8.0
+ github.com/gorilla/websocket v1.4.2
+ github.com/mzyy94/nscon v0.1.0
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..e21c05c
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,6 @@
+github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
+github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
+github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/mzyy94/nscon v0.1.0 h1:K6DZWWvaVtIsUxtcaLVGq6AjAHLEHPZXaTI1/81TcO0=
+github.com/mzyy94/nscon v0.1.0/go.mod h1:5XyHX0uDmuhaKIDkJz+Xi4BK027IcrLswlzNjg6x7L0=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..dbb9bd1
--- /dev/null
+++ b/main.go
@@ -0,0 +1,19 @@
+package main
+
+import (
+ "flag"
+
+ "github.com/jolan/remotegamepad/webserver"
+ "github.com/mzyy94/nscon"
+)
+
+func main() {
+ var (
+ device = flag.String("device", "/dev/hidg0", "simulating hid gadget path")
+ )
+ flag.Parse()
+
+ controller := nscon.NewController(*device)
+
+ webserver.StartHTTPServer(controller)
+}
diff --git a/remotegamepad_screenshot.png b/remotegamepad_screenshot.png
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diff --git a/webroot/apple-touch-icon.png b/webroot/apple-touch-icon.png
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diff --git a/webroot/css/remotegamepad.css b/webroot/css/remotegamepad.css
new file mode 100644
index 0000000..3bcd99a
--- /dev/null
+++ b/webroot/css/remotegamepad.css
@@ -0,0 +1,7 @@
+body {
+ padding-top: 5rem;
+}
+.remotegamepad {
+ padding: 3rem 1.5rem;
+ text-align: center;
+}
diff --git a/webroot/favicon-16x16.png b/webroot/favicon-16x16.png
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diff --git a/webroot/index.html b/webroot/index.html
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--- /dev/null
+++ b/webroot/index.html
@@ -0,0 +1,141 @@
+
+
+
+
+
+
+
+ Remote Gamepad ยท Home
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Active Sessions
+
+
+
+
Gamepad
+
Raspberry Pi
+
Status
+
Buffer
+
Control
+
+
+
+
+
+
Start Session
+
+
+
+
Gamepad
+
Swap Buttons
+
+
+
Raspberry Pi
+
+
Control
+
+
+
+
+
+
+
+
+ Welcome! Here are some tips to get started:
+
+
+
Press a button or wiggle the joysticks to trigger detection of the gamepad.
+
Close any applications in the background that may interfere with input e.g. Steam.
+
Use Chrome/Chromium, leave the tab in the foreground, and don't refresh the page.
`.trim() +
+ " " + gamepadData["id"] + " " + `doesn't have a specialized profile for it yet.
+ Button mappings may be incorrect or some buttons may not function at all.
+ You can help us by following the Adding A Profile For A Controller instructions at
+ https://github.com/jolan/remotegamepad.