單個USB設備固定設備
查看usb設備id
插入usb設備
執行命令: lsusb
結果:
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爲例:其ID是:10c4:ea60
編輯配置文件
執行命令: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"
重啓服務
執行命令:sudo /etc/init.d/udev restart
多個USB設備固定端口
查看usb端口號
插入usb設備
執行命令: ls -l /sys/class/tty
結果:
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
如果你只有一個usb設備,交換usb位置重複四次獲得四個usb口的命名
usb命名爲:
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
編輯配置文件
執行命令: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"
重啓服務
執行命令:sudo /etc/init.d/udev restart