Just playing around with this to try and get udev rules straight. Maybe @pb66 can assist?
running lsusb I get:
Bus 001 Device 004: ID 0403:6015 Future Technology Devices International, Ltd Bridge(I2C/SPI/UART/FIFO)
So I built the following udev rule:
SUBSYSTEMS==“usb”, ATTRS{idProduct}==“6015”, ATTRS{idVendor}==“0403”, SYMLINK+=“emonTX-$attr{serial}”
But when udev runs is generates the following symbolic link:
lrwxrwxrwx 1 root root 9 Feb 14 18:33 /dev/emonTX-FT43UER9 → gpiochip2
Shouldn’t this be linking to a ttyUSBX device?