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Embedded Board Shutdown Processing

I work with an embedded board (BeagleBoard) using a Linux distribution (Angstrom Linux). I would like to carefully stop the operating system when this button is pressed on the board. I plan to do the following:

  • In init, run the power-off daemon as the root user
  • "power-off" runs a magic code to check if this button is pressed.
  • If the button is pressed, “power off” causes “stop”

Before moving on to my text editor and code, is there any standard Linux daemon for this?

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2 answers

init ( 1) SIGWINCH kb ( " " ), . init - , ctrl-alt-del ; init .

, , "", SIGWINCH PID 1, kb shutdown -h /etc/inittab.

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.. "hal" .

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Source: https://habr.com/ru/post/1724058/

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