Can Ruby tell when a USB memory stick is plugged into a USB port on Linux?

I'm working on a utility that will scan USB ports and mount any Mass Storage devices it finds. I 开发者_如何学JAVAcan poll for changes ( with a patched version of Ruby-USB ) but would much rather get a notification, or subscribe to some event.

Is there a way for Ruby to be tickled when a USB stick is inserted?

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Check out ruby-dbus. There is also a tutorial for it as well.