Hello again
I have modified the sun50i-h5-orangepi-pc2.dts
r_gpio_keys {
compatible = "gpio-keys";
sw4 {
label = "sw4";
--- linux,code = <0x100>;
+++ linux,code = <0x74>;
gpios = <0x24 0x0 0x3 0x1>;
};
};
Now, 5sec long press of the power button generate a button/power ACPI event
that can be used with acpid to trigger a power off.
Does anyone know why this gpio, that on this specific HW, is used (or shall
be used) for power down, is bind to BTN_0?
Il giorno domenica 23 aprile 2017 10:29:40 UTC+2, Menion ha scritto:
>
> Hi
> I have tried to monitor the button via evtest, but nothing is detected
> Can you provide guidance on how modify dts for making this switch
> generating a key_power event?
> Bye
>
>
> Il giorno domenica 23 aprile 2017 06:56:01 UTC+2, Icenowy Zheng ha scritto:
>>
>>
>>
>> 于 2017年4月22日 GMT+08:00 下午8:34:36, Menion <[email protected]> 写到:
>> >That's wrong. I am currently running a Bananapi (A20) with power and
>> >reset buttons perfectly working and sending acpi events. Also H3 works
>> >(Orange pi pc 1)
>>
>> Banana Pi has PMIC, but Orange Pi PC2 doesn't.
>>
>> In the default mainline kernel, the power key on OPi PC2 is not mapped to
>> the KEY_POWER, but a BTN_x code.
>>
>> You may want to alter the device tree for this (The key is a
>> GPIO-connected one, and used the gpio-keys dt binding)
>>
>>
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