[PATCH evtest] Add evstate tool for evdev state querying

[Daniel Drake]

On 13 July 2011 00:12, Peter Hutterer <peter.hutterer at who-t.net> wrote:
> I think I'd prefer it merged into evdev, simply because we have all the
> lookup tables there already. Which allows a state query for "Key Comma"
> instead of the numbers, making it a nicer interface IMO.
>
> Ideally we could also make it parse KEY_FOO definitions, since those are the
> ones programmers see and are most familiar with (as opposed to the ones
> evtest currently uses).

Thanks, I will work on this.
What do you think about this design?

evtest /dev/input/event0
Works as before.

evtest --get-state sw --value 5
evtest --get-state sw --value SW_DOCK
evtest --get-state sw --name Dock
Get dock switch state. Return exit code 0 or 1 depending on state.

--get-state would also accept key, snd, led

--value parsing would choose between numerical value and constant name
mode through looking at the first character of the parameter. If its
numerical then it would use it as a numerical value. (there is no risk
of conflict here, because preprocessor constants cant start with a
number)

Thanks,
Daniel