在Linux系统中连接/分离USB设备并从USB读取文件后如何通知

Question

I need to be notified once new USB device is attached/detached in Linux system.

And once new device will be attached I need to read the config file("config/conf.xml") and notify to REST API.

I looked into libusb and udev-rules but not sure what is the best way to achieve this.

Please give your view/suggestion on this.

Answer 1

I'd add udev rule first with running your custom script. Something like:

ACTION=="add", KERNEL=="sd?1", SUBSYSTEMS=="usb", RUN+="/path/to/your/script %k"

%k is kernel parameter that is passed to your script.

From udev man:

$kernel, %k
    The kernel name for this device.

In the script I'd use curl . If you don't need some tricky logic. If so, I'd use python.

Anyway I think udev is perfect for this problem.