Tofee / key-state

Simple key testing utility

key-state is a basic program that will query the kernel about current key state for a given input device.

Usage is:

key-state <input-device> [key]

where:

• <input-device> is the path to an input device, like /dev/input/event2
• key is an optional numerical argument specifying which keycode to test. For a list of key codes, please see the Linux UAPI .

Return value is 0 if the given key is pressed, or key is absent and any key is pressed. Otherwise, return value is 1.

Example:

• test if VOLUME_UP is pressed on event2:

key-state /dev/input/event2 115

• test if any key is pressed on event1:

key-state /dev/input/event1