input_mt_get_slot_by_key9
Return slot matching key
Usage
int input_mt_get_slot_by_key(struct input_dev * dev, int key);
Arguments
dev
input device with allocated MT slots
key
the key of the sought slot
Overview
Returns the slot of the given key, if it exists, otherwise set the key on the first unused slot and return.
If no available slot can be found, -1 is returned.