Determine which USB port was used

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The question is: how to determine (programmatically) which USB port was used when the USB flash drive was plugged in?

Context:

I am developing an app for an Android TV Box that lets you view files from a Pendrive. My device has 3 USB ports. I would like to know which of the port was used (some kind of ID, port name, whatever that could help me identify it in the code).

What have I done:

  1. I read the android docs regarding USB as a host. None of the classes contains such information. The API is listing only devices which are plugged in but there is no information about the USB sockets. The deviceName is a string containing the path to a device file created in the android system but it is changing every time I plug in a USB flash drive (it looks like this /dev/bus/usb/007/008 the numbers, in the end, are different each time).
  2. Looked into android sys files by adb shell command but couldn't find anything that describes the USB ports and says which one is currently in use.

Maybe someone encountered a similar problem? I'd really appreciate any help. Thanks in advance!

usb android
1 Answers

The Android operating system does not expose the information you are looking for.

Only with root access to the underlying Linux system below, can that information be obtained.

Use lsusb to enumerate the usb devices, and dmesg and mount to correlate the drive's mount point.

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