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<div><span><span style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif;">>Unfortunately, John's cook book rule doesn't "just work" for me, I'm </span><span style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif;">guessing 'cause Linux has gotten more strict.</span></span><br></div><div><span><span style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif;"><br></span></span></div><div><span><span style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif;">I will provide some context to the solution I wrote. I wrote it about 5-6 years ago and it was on TinyCore Linux and I was probably doing all processes as root. So it may also just be that I never bothered with the security/permission side of the equation and therefore did not run into the same problems you are encountering. I do not actually use this solution anymore, but I do have a couple OrangePi Zero that are still using USB serial ports, maybe it's a good time to try the UDEV again. I haven't because I have these sensors slated to be replaced with direct UART.</span></span></div><div><span><span style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif;"><br></span></span></div><div><br></div></div><div id="ydp9f7d57a4yahoo_quoted_1938436737" class="ydp9f7d57a4yahoo_quoted"><div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;"><div><div dir="ltr"><div class="ydp9f7d57a4yqt5674782663" id="ydp9f7d57a4yqtfd49401"><br clear="none"></div></div></div>
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