creating static USB ports on Orange Pi Zero

jwgorman

1. #!/bin/bash
   
2. 
   
3. # Split the first command line argument by '/'
   
4. IFS='/' read -r -a items <<< "$1"
   
5. 
   
6. # Iterate through the items
   
7. for ((i=0; i<${#items[@]}; i++)); do
   
8.     # Check if the current item matches the pattern 'usb' followed by one or more digits
   
9.     if [[ ${items[$i]} =~ ^usb[0-9]+$ ]]; then
   
10.         # Print the next item in the list and exit the loop
    
11.         echo "${items[$((i+1))]}"
    
12.         break
    
13.     fi
    
14. done

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I was able to get static USB ports on an Orange Zero Pi with adding a udev rule refencing the script above like: ACTION=="add", KERNEL=="ttyUSB[0-9]*", PROGRAM="/etc/udev/rules.d/usb-parse-devpath.sh %p", SYMLINK+="ttyUSB_%c"