单个USB设备固定设备
查看usb设备id
插入usb设备
执行命令: lsusb
结果:
Bus 001 Device 010: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP2102/CP2109 UART Bridge Controller [CP210x family]
Bus 001 Device 004: ID 0424:7800 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
以Device010为例:其ID是:10c4:ea60
编辑配置文件
执行命令:sudo nano /etc/udev/rules.d/99-com.rules
文件末尾增加:
KERNEL=="ttyUSB*",ATTRS{idVendor}=="10c4",ATTRS{idProduct}=="ea60", MODE:=“0777”, SYMLINK+="device1"
重启服务
执行命令:sudo /etc/init.d/udev restart
多个USB设备固定端口
查看usb端口号
插入usb设备
执行命令: ls -l /sys/class/tty
结果:
lrwxrwxrwx 1 root root 0 Sep 7 13:59 ttyUSB0 -> ../../devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/ttyUSB0/tty/ttyUSB0
如果你只有一个usb设备,交换usb位置重复四次获得四个usb口的命名
usb命名为:
lrwxrwxrwx 1 root root 0 Sep 7 13:59 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 Sep 7 14:06 ttyUSB0 -> ../../devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/1-1.3:1.0/ttyUSB0/tty/ttyUSB0
lrwxrwxrwx 1 root root 0 Sep 7 14:09 ttyUSB0 -> ../../devices/platform/soc/3f980000.usb/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0/ttyUSB0/tty/ttyUSB0
lrwxrwxrwx 1 root root 0 Sep 7 14:09 ttyUSB0 -> ../../devices/platform/soc/3f980000.usb/usb1/1-1/1-1.1/1-1.1.3/1-1.1.3:1.0/ttyUSB0/tty/ttyUSB0
编辑配置文件
执行命令:sudo nano /etc/udev/rules.d/99-com.rules
文件末尾增加:
KERNEL=="ttyUSB*",KERNELS=="1-1.1.2",MODE:="0777",SYMLINK+="device1"
KERNEL=="ttyUSB*",KERNELS=="1-1.1.3",MODE:="0777",SYMLINK+="device2"
KERNEL=="ttyUSB*",KERNELS=="1-1.2",MODE:="0777",SYMLINK+="device3"
KERNEL=="ttyUSB*",KERNELS=="1-1.3",MODE:="0777",SYMLINK+="device4"
重启服务
执行命令:sudo /etc/init.d/udev restart