永久的USB端口名称? (Linux) [英] permanent USB port names? (Linux)

问题描述

我的程序现在使用了两个Arduino. 因为我在Linux上并且是Linux的新手，所以端口不是静态的，例如"com3"和"com6"，我认为第一个连接的是Arduino的"ttyUSB0"，第二个连接的是"ttyUSB1"，等等.在.但是，由于在操作系统启动时两者都已连接，因此我可以确定端口名称将保持不变吗?还是有其他方法可以通过名称访问端口?

I have two Arduinos now used by my program. SInce I'm on Linux and new to Linux, the port isn't static, like "com3" and "com6", I think it's "ttyUSB0" for the first Arduino which is connected, and "ttyUSB1" for the second and so on. But since both are connected when the OS boots, can I be certain that the port names will remain the same? Or is there some other way to access ports by name?

推荐答案

使用udev！

udevadm info -a -n /dev/ttyUSB1 | grep '{serial}' | head -n1

应该给您USB接口的序列号.

should give you the USB interfaces serial number.

然后您可以编写udev规则:

then you can write udev rules:

示例

SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", ATTRS{serial}=="A6008isP", SYMLINK+="arduino"
SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", ATTRS{serial}=="A7004IXj", SYMLINK+="buspirate"
SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", ATTRS{serial}=="FTDIF46B", SYMLINK+="cisco.serial"

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