[TriEmbed] best tool for automagic interaction with USB serial ports

[John Vaughters]

 Pete,
I got home and tried my how-to instructions and sure enough, it didn't work. I then found out why. Since I wrote this how-to they have disallowed renaming and only allow symlinks. So mystery solved. I will be updating the how-to to fix it. In general I am disappointed with this change, because with renaming, I could allocate the known serial devices with a name and leave the automatic names continue to work as normal starting with ttyUSB0 for example. Oh well, maybe it was causing issues that I am not aware. So we just roll with the punches..... as if we have a choice `,~)
Thanks for pointing out the issue.
John Vaughters
    On Friday, March 1, 2019, 12:51:54 PM EST, John Vaughters <jvaughters04 at yahoo.com> wrote:  
 
  Curiosity is the name of the game. Now you have me curious. I will check it out and report back, probably this weekend.
    On Friday, March 1, 2019, 12:45:47 PM EST, Pete Soper via TriEmbed <triembed at triembed.org> wrote:  
 
  
John,
 
   Please don't lift a finger on my account: you've been a great help and I've got what I need now. Most especially don't add new sources of USB pain on my account. :-) Good old UARTs! But if I've created an itch that you can't resist scratching we'll be eager to take advantage.
 
 
-Pete
 
 On 3/1/19 12:38 PM, John Vaughters via TriEmbed wrote:
  
 
 >Unfortunately, John's cook book rule doesn't "just work" for me, I'm guessing 'cause Linux has gotten more strict.
  
  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. 
  
       
      
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