Re: [PATCH v2] Input: evdev - Add EVIOC mechanism to extract the MTslot state

From: Henrik Rydberg
Date: Fri Jan 06 2012 - 14:48:18 EST


> > Ok, maybe not to so easy after all, which probably answers my own
> > question. Looks like a EVIOCGMTSLOT, taking both slot and event code
> > as argument, would be the cleaner route to take. Another ioctl, how do we
> > feel about that?
>
> What's the problem with userspace locking?

The idea was to get by without it.

Regarding ioctls, it does not seem realizable due to ioctl number
exhaustion. A sysfs interface for all EV_ABS and per-slot MT values
could be a more future-proof alternative.

Henrik
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/