Is it possible to do sudo make install with --pcm activated?

[AnduriI]

Hey there,

I had some problems with LEDs working fine after boot, but flickering after some time. As supposed by @jorupp in #69 this can be solved by using --pcm option. I tested it and it works really well.
Is there a way to autostart the daemon with --pcm on every boot? At the moment I have it running with sudo make install and I do not need to care about. I know I could use crontab to start it manually @reboot, but I hope there is a more elegant way to do.

Regards,
Anduril

[jorupp]

Someone who knows a bit more about how this is configured on a Pi can probably help more, but I recall there being a pi-blaster.service file in /etc/systemd/system or somewhere like that that had a line ExecStart= that indicated the executable to run - you can just add additional parameters to that line, such as the --pcm.

Good luck.

[AnduriI]

Thanks for your hint, I found the pi-blaster.service in /etc/systemd/system/multi-user.target.wants/. As you thought it contains this line, but I don't know what $DAEMON_OPTSis and what it does. Should I add --pcm before or after that?

[Unit]
Description=Daemon for PWM control of the Raspberry Pi GPIO pins

[Service]
EnvironmentFile=-/etc/default/pi-blaster
User=root
ExecStart=/usr/sbin/pi-blaster $DAEMON_OPTS
ExecReload=/bin/kill -s HUP $MAINPID
Type=forking

[Install]
WantedBy=multi-user.target

[jorupp]

Oh yeah, forgot about DAEMON_OPTS - maybe /etc/default/pi-blaster or something like that defines that? I'm far from a systemd expert :(

[sarfata]

Yes that is the solution :)