Rafig Posted September 19, 2022 Share Posted September 19, 2022 Hi, I am using Rock Pi 4B and want to be able to turn the system on after sleep (suspend/hibernate or any other state that would allow it). Previously, I have used MRAA library to set an interrupt, and called system("shutdown now") inside interrupt code. I did it according to the following post and according to the MRAA examples. I wrote a shell script, which executes the MRAA program. Shell script, in its turn, is called by a service on a start-up. So, with this method I was able to shutdown the system, but I cannot get out of this state via button press. I researched few posts, such as: 1, 2, and 3. It looks like either I have to modify the DTS file and generate new OS image, or perhaps there is a method to set the pin as a wake-up source inside the OS. While on Debian, when I go into directory: cd /sys/kernel/irq/<PIN #>/ There is a field called wakeup When doing cat wakeup it shows disabled Though I didn't find this folder in Armbian, but I suppose they may share similar settings for the pins. Can anyone please help me to achieve my goal? I came across another similar post, but unfortunately there was no solution there. 0 Quote Link to comment Share on other sites More sharing options...
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