Write data to USB HID using JavaScript, HTML5, or any cross platform language (supports Android)

Question

I\'ve written an UI in HTML5 and JavaScript. I chose this implementation so that I could share the same code between both Android Chrome and Windows 8 RT.

Now, my next ob

Answer 1

I've actually thought about how to do things similar to this...

Here's is one way sure way to do it if you have control over the computer which has the USB device attached:

Have the computer with the USB device run a web server such as Apache and PHP. Have it only listen to localhost.

Then in the HTML page being viewed, execute an Ajax post to localhost/somescript.php (or CGI or cfm or whatever).

In the PHP/CGI script, communicate to the USB device and then return a JSON string to the browser saying something happened.

Another approach is to use custom URL protocols. You create an executable and "install" it on the client computer along with your custom URL protocol.

Then you can invoke the executable from the browser using your custom URL protocol.