Hello.
We have Android 7.1.2 (Nougat) running on a device with imx6. When we press the Power key on the device, we see the following getevent output that shows shows both DOWN and UP events being sent. When the Power key is released, no event is seen:
[ 726.515409] /dev/input/event2: EV_KEY KEY_POWER DOWN
[ 726.515409] /dev/input/event2: EV_SYN SYN_REPORT 00000000
[ 726.530056] /dev/input/event2: EV_KEY KEY_POWER UP
[ 726.530056] /dev/input/event2: EV_SYN SYN_REPORT 00000000
With the same hardware running Android JellyBean, we see the expected behavior, where the DOWN event is seen on the key press, and the UP event is seen on the key release. Can you help us to produce the expected behavior on Nougat?
Here is the related device tree entry:
gpio_keys: gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpio_keys>;
volume-back {
label = "Volume Back";
interrupts-extended = <&gpio7 12 IRQ_TYPE_EDGE_FALLING>;
wakeup-source;
linux,code = <KEY_BACK>;
debounce-interval = <5>;
};
power {
label = "Power Button";
interrupts-extended = <&gpio1 5 IRQ_TYPE_EDGE_FALLING>;
wakeup-source;
linux,code = <KEY_POWER>;
debounce-interval = <5>;
};
};
Further details might be seen from the "getevent -li" output:
add device 1: /dev/input/event0
bus: 0019
vendor 0001
product 0001
version 0100
name: "gpio-keys-polled"
location: "gpio-keys-polled/input0"
id: ""
version: 1.0.1
events:
KEY (0001): KEY_WAKEUP
input props:
<none>
could not get driver version for /dev/input/mouse0, Not a typewriter
add device 2: /dev/input/event1
bus: 0018
vendor 0000
product 0000
version 0000
name: "EP0980M09"
location: ""
id: ""
version: 1.0.1
events:
KEY (0001): BTN_TOUCH
ABS (0003): ABS_X : value 298, min 0, max 479, fuzz 0, flat 0, resolution 0
ABS_Y : value 185, min 0, max 271, fuzz 0, flat 0, resolution 0
ABS_MT_SLOT : value 0, min 0, max 4, fuzz 0, flat 0, resolution 0
ABS_MT_POSITION_X : value 0, min 0, max 479, fuzz 0, flat 0, resolution 0
ABS_MT_POSITION_Y : value 0, min 0, max 271, fuzz 0, flat 0, resolution 0
ABS_MT_TRACKING_ID : value 0, min 0, max 65535, fuzz 0, flat 0, resolution 0
input props:
INPUT_PROP_DIRECT
add device 3: /dev/input/event2
bus: 0019
vendor 0001
product 0001
version 0100
name: "gpio-keys"
location: "gpio-keys/input0"
id: ""
version: 1.0.1
events:
KEY (0001): KEY_POWER KEY_BACK
input props:
<none>
could not get driver version for /dev/input/mice, Not a typewriter
