Em 26-01-2011 17:16, Gerd Hoffmann escreveu:

  Hi,

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The check should be against concrete version (0x10000 in this case).

Dmitry,

Ok, now I see what you're meaning. Yeah, an absolute version check like
what you've proposed is better than a relative version check.

Stepping back: what does the version mean?

0x10000 == 1.0 ?
0x10001 == 1.1 ?

Can I expect the interface stay backward compatible if only the minor revision changes, i.e. makes it sense to accept 1.x?

Will the major revision ever change?  Does it make sense to check the version at all?

Gerd,

Dmitry will likely have a better answer for me, but I think you should
just remove the test. By principle, the interface should always be 
backward compatible (if it isn't, then we have a regression to fix). 
You may expect newer features on newer versions, so I understand 
that the version check is there to just allow userspace to enable 
new code for newer evdev protocol revisions.

Thanks,
Mauro