Every time I unplug my Android phone and reconnect it, its URL changes. E.g. when it is mounted as mtp://[usb:002,002]/ and I unplug and recoonect it, it gets a new URL, e.g. mtp://[usb:002,003]/.
This behavior breaks all use cases which depend on a stable path (e.g. shell scripts, synching via Unison etc.).
Is there any way to implement a behavior similar to removable drives? They get a consistent mounting path, which is /media/<user>/<name>, where <name> is either the volume label (if present) or the volume ID.
In GVFS this would require uniquely identifying MTP devices. If there is something as a volume ID, GUID or any other element that can uniquely identify a MTP device, this would be the way to go. If MTP doesn't provide this kind of ID (don't know if it does), then maybe "fingerprinting" the device (based on characteristics as the USB vendor & device IDs) may be a valid workaround.
Doing some research, I found the MTP spec at:
https:/
Chapter 5.1.1 DeviceInfo Dataset specifies a Serial Number (5.1.1.14), which is "required to be unique among all devices sharing identical Model and Device Version fields". Thus every MTP device should be uniquely identifiable by the following fields from its DeviceInfo:
- Manufacturer
- Model
- Device Version
- Serial Number