On 28 April 2017 at 11:24, Menion <[email protected]> wrote: > 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?
Because it's a bug. Just send a patch - there is SubmittingPatches somewhere under Documentation directory in Linux kernel tree in case you wonder how to do it. Thanks Michal > > > 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) >>> > -- > You received this message because you are subscribed to the Google Groups > "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
