问题描述
我有几个连接到USB集线器的设备,我需要根据它们连接到的端口创建一个符号链接。 我的输出:
对于我在/ dev / ttyACM *中; udevadm info --name = $ i --attribute-walk | grep'devpath';完成
是:
Udevadm info starts with the device specified by the devpath and then
ATTRS{devpath}=="4.2.1"
ATTRS{devpath}=="4.2"
ATTRS{devpath}=="4"
ATTRS{devpath}=="0"
Udevadm info starts with the device specified by the devpath and then
ATTRS{devpath}=="4.2.4"
ATTRS{devpath}=="4.2"
ATTRS{devpath}=="4"
ATTRS{devpath}=="0"
Udevadm info starts with the device specified by the devpath and then
ATTRS{devpath}=="4.1.2"
ATTRS{devpath}=="4.1"
ATTRS{devpath}=="4"
ATTRS{devpath}=="0"
Udevadm info starts with the device specified by the devpath and then
ATTRS{devpath}=="4.3.1"
ATTRS{devpath}=="4.3"
ATTRS{devpath}=="4"
ATTRS{devpath}=="0"
Udevadm info starts with the device specified by the devpath and then
ATTRS{devpath}=="4.3.3"
ATTRS{devpath}=="4.3"
ATTRS{devpath}=="4"
ATTRS{devpath}=="0"
我的udev规则文件是:
KERNEL=="ttyACM*",SUBSYstemS=="usb",DRIVERS=="usb",ENV{my_path} = "$attr{devpath}",ENV{my_dev} = "yes"
ENV{my_dev} == "yes",ATTRS{idvendor}=="14cd",ATTRS{idProduct}=="8601",SYMLINK+="Dev_$env{my_path}"
哪个为我的设备提供了这些符号链接:
/dev/Dev_4.1.2 -> ttyACM2
/dev/Dev_4.2.1 -> ttyACM0
/dev/Dev_4.2.4 -> ttyACM1
/dev/Dev_4.3.1 -> ttyACM3
/dev/Dev_4.3.3 -> ttyACM4
我需要它们看起来像这样:
/dev/Dev_1.2 -> ttyACM2
/dev/Dev_2.1 -> ttyACM0
/dev/Dev_2.4 -> ttyACM1
/dev/Dev_3.1 -> ttyACM3
/dev/Dev_3.3 -> ttyACM4
或者还有另一种有效的方式来创建不使用udev规则的符号链接?
解决方法
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