Use serial port in web environment

Question

I need to use the serial port on the client side of a web application. what solution is suggested for using the serial port in a web browser. Can a Firefox addon use a serial port or call a dll function? what other solution?

Answer 1

You will need to write add-ons to make this work.

For Internet Explorer; you can write a browser helper object (BHO) .

For Firefox, Chrome and Safari; I think your only option is to write Netscape Plugin using NPAPI . FireBreath is a very useful foundation for creating such plugins, as it takes care of a lot of dirty work for you, allowing you to focus on the plugin itself. This will allow you to knock out these three stones with one stone - you can also write it as a cross platform (support many operating systems) if you want. Each of these browsers has its own extension models, which can be written in pure JavaScript; but they do not expose the serial port API due to lack of need and security concerns; making NPAPI the only viable solution.

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Answer 2

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