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| INPUT_MT_GET_SLOT_BY(9) | Input Subsystem | INPUT_MT_GET_SLOT_BY(9) |
NAME¶
input_mt_get_slot_by_key - return slot matching key
SYNOPSIS¶
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
DESCRIPTION¶
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. Note that for this function to work properly, input_mt_sync_frame has to be called at each frame.
COPYRIGHT¶
| January 2017 | Kernel Hackers Manual 4.8. |