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