On Wed, 2002-06-05 at 18:05, Werner Almesberger wrote:

> Oh, I got plenty of devices to work without any useful support, so,
> while annoying, this isn't necessarily a show-stopper for me.

True, when you only need to support one - your - device. But things fall
apart quickly when you suddenly have to support 37 modifications,
versions and clones of the device that you once rev-engineered.

> An intentionally obscured protocol, or a transport that is hard to
> reverse-engineer would be, though. (I haven't worked with USB yet,
> so I don't know how hard things are there in general.)

USB traffic monitoring is not that difficult. Since your device appears
to use relatively low traffic (compared to audio and video devices), it
should not be a big problem.

> > talks about IrDA device, not USB - is this the device, or what? If it is
> > IrDA, what driver would you expect to have?
> 
> It talks USB and IrDA. I only care about USB for now.

Well, I haven't heard of anyone using (or having, to that matter) this
quite a specialty device. Nobody on this list seemed to recognize it
either. Then, if you have it, you should plug it into a Linux box and
look at descriptors. If it is a class-compliant device (of some class,
don't know which one) then the driver already exists. If it is a vendor
device then break out your USB sniffer ;-)

Dmitri

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