<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Generator" content="Microsoft Word 14 (filtered medium)"> <style></style> </head> <body bgcolor="white" lang="EN-US" link="blue" vlink="purple"> <div class="WordSection1"> I have not looked into module options or temp files – I haven’t learned these yet.<o:p></o:p> <o:p> </o:p> My bash script does write to the /sys/class/… trigger to set or clear an LED.<o:p></o:p> I don’t understand how system-tmpfile helps with a periodic operation. But I will look into it.<o:p></o:p> <o:p> </o:p> Thanks<o:p></o:p> <o:p> </o:p> <div> Larry Harmon<o:p></o:p> <o:p></o:p> Larry Harmon | Sr. Embedded Engineer Turning Technologies | 255 West Federal Street | Youngstown, OH 44503 Direct: 330-531-7664 | Main: 330-746-3015 | Toll Free: 866-746-3015 | SKYPE larry.harmon54<o:p></o:p> <a href="mailto:lharmon@turningtechnologies.com">lharmon@turningtechnologies.com</a> | <a href="http://www.turningtechnologies.com/" target="_blank">www.TurningTechnologies.com</a><o:p></o:p> <o:p></o:p> <img border="0" width="185" height="46" id="Picture_x0020_3" src="cid:image001.png@01D02414.5E45C140" alt="cid:image001.png@01CE9E4C.2D88DB90"><o:p></o:p> <o:p></o:p> Stay Connected - <a href="https://twitter.com/turningtech" target="_blank">@TurningTech </a>· <a href="http://www.facebook.com/#!/pages/Turning-Technologies/104796086230111?ref=ts" target="_blank">Facebook</a><o:p></o:p> <o:p> </o:p> This e-mail message, including any attached files, is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient or you wish to discontinue receiving any future e-mails from the vendor featured in this message, please send an <a href="mailto:info@turningtechnologies.com?subject=unsubscribe">e-mail request</a>.<o:p></o:p> </div> <o:p> </o:p> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"> From: systemd-devel [mailto:systemd-devel-bounces@lists.freedesktop.org] On Behalf Of "Jóhann B. Guðmundsson" Sent: Monday, December 29, 2014 6:46 PM To: systemd-devel@lists.freedesktop.org Subject: Re: [systemd-devel] simple service shell script filling journal<o:p></o:p> </div> </div> <o:p> </o:p> <o:p> </o:p> <div> On 12/29/2014 08:16 PM, Larry Harmon wrote:<o:p></o:p> </div> <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"> I am using a simple shell script, started by system, to set LEDs on a Marvell Armada 370 plug.<o:p></o:p> The script uses a while loop with a "sleep 30" line<o:p></o:p> </blockquote> Hmm somehow using a script ( and a type service unit ) to accomplish this does not sound right to me and I'm pretty sure greg k-h has the correct way of achieving this but did you try fiddling with module options /etc/modprobe.d/<module>.conf options foo bar Or find the trigger cat /sys/class/leds/<foo>-led/trigger Create an tmpfile /etc/tmpfiles.d/<foo>-led.conf w /sys/class/leds/<foo>-led/trigger - - - - <the trigger to be used> systemd-tmpfiles --create <foo>-led.conf And try that instead of writing a script to accomplish this? ( This might be a bug in the kernel/driver if this is not working correctly or if you cant "tweak it" it with something like the above ) JBG<o:p></o:p> </div> </body> </html>