udev rules

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usblcom.rules 文件内容

SUBSYSTEMS=="usb",KERNELS=="1-1.2", ATTRS{idProduct}=="6001", ATTRS{idVendor}=="0403", MODE:="0777",  SYMLINK+="usbl_china"

$sudo cp usblcom.rules /etc/udev/rules.d
$lsusb

pi@raspberrypi:~ $ ls -l /sys/class/tty/ttyU*
lrwxrwxrwx 1 root root 0 Aug 18 19:16 /sys/class/tty/ttyUSB0 -> ../../devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/ttyUSB0/tty/ttyUSB0
lrwxrwxrwx 1 root root 0 Aug 18 19:16 /sys/class/tty/ttyUSB1 -> ../../devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4/1-1.4:1.0/ttyUSB1/tty/ttyUSB1

$ udevadm info -q path -a /dev/ttyUSB1