Hey guys, I am having an issue with trying to get my power button (i.MX6) to shutdown the OS.
My kernel has no configuration options for acpi, and acpid gives me the following error: ------- root@seco-uq7-dl-256mbx4:~# /usr/sbin/acpid RTNETLINK1 answers: No such file or directory acpid: error talking to the kernel via netlink ------- So, my guess is that I have to use udev. If I use udevadm monitor, no events get raised when I press the power switch. After digging through the kernel source code (Linux seco-uq7-dl-256mbx4 3.0.101 #1 SMP PREEMPT Thu Jun 2 10:49:45 PDT 2016 armv7l GNU/Linux) and the imx6 drivers, I finally found something that may help me. 1. I found the power button driver in the OS at /sys/bus/platform/drivers/imx_seco_pwrb. 2. Some more info that may be helpful. root@seco-uq7-dl-256mbx4:~# cat /proc/ectrl/events/power_button/enable disable root@seco-uq7-dl-256mbx4:~# cat /proc/ectrl/events/power_button/en_flash disable root@seco-uq7-dl-256mbx4:~# ls /sys/bus/platform/drivers/imx_seco_pwrb/ bind uevent unbind 3. I found /proc/ectrl/events/event_state/power_button which stores the current state of the power button. root@seco-uq7-dl-256mbx4:~# cat /proc/ectrl/events/event_state/power_button active root@seco-uq7-dl-256mbx4:~# cat /proc/ectrl/events/event_state/power_button active root@seco-uq7-dl-256mbx4:~# cat /proc/ectrl/events/event_state/power_button active root@seco-uq7-dl-256mbx4:~# cat /proc/ectrl/events/event_state/power_button inactive root@seco-uq7-dl-256mbx4:~# cat /proc/ectrl/events/event_state/power_button inactive root@seco-uq7-dl-256mbx4:~# cat /proc/ectrl/events/event_state/power_button inactive My embedded operating system is using sysvinit, if that helps. I effectively need the power button to perform a shutdown -h now. Any ideas why it isn't currently? Thanks, Paul Knopf Software Engineer Med X Change, Inc pkn...@medxchange.com
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