Hi all,

Can anyone give me an example/practical situation where IrDA protocol is being used in Ubuntu Linux ?

Afraid I don't know of any offhand. But some sports heartrate monitors can use irda to transfer data (in the evil empire win-Doh system which is unfortunately ahead of us in this respect). Polar hrm's for instance of which there are a couple in our household, use irda in some models along with other methods. The problem I found, even in the evil empire case is that depending on your motherboard, you may or may not be able to use irda for your particular application, irrespective of which OS you're using. I have 3 computers in the house plus a laptop and unfortunately only the laptop can use my irda for my Polar hrm due to the Asus mobo's in the other 3 computers. One of the few shortcomings I've found with Asus mobo's. As I seem to recall it was a problem of the brand of usb controller used in the mobo. I spent some time emailing back and forth with Polar tech support in Europe, where they have different irda adapters, and they went out of their way (for which I'm really grateful) to unexpectedly send me an irda unit used in Britain for free as a goodwill gesture and although both Polar and I thought it was going to solve my problem, the mobo components jumped in to spoil the day. Don't know what you're planning on coming up with for irda, but this one problem might be something to consider. Cheers.