Re: [PATCH] Input: MT - Add support for balanced slot assignment

From: Dmitry Torokhov
Date: Thu Jan 22 2015 - 15:03:06 EST


On Thu, Jan 22, 2015 at 08:52:25PM +0100, Henrik Rydberg wrote:
> int input_mt_assign_slots(struct input_dev *dev, int *slots,
> - const struct input_mt_pos *pos, int num_pos)
> + const struct input_mt_pos *pos, int num_pos,
> + int dmax)

Should dmax be unsigned and do we really need to treat 0 specially or we
could use UNIT_MAX as "don't care" value?

> {
> struct input_mt *mt = dev->mt;
> + int mu = 2 * dmax * dmax;

For my education, what does "mu" stand for? Ideally, if someone could create a
write-up on the contact matching that would be most awesome.

Thanks.

--
Dmitry
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