How to disable PTP to force a digital camera into mass storage mode?

[HyperBear]

I have a digital camera which supports both mass storage and PTP access to its internal storage, but there is no manual setting for it, so it must somehow be recognizing it automatically. Some years ago, I somehow managed to get mass storage access from Windows, but on Linux it only recognizes it as PTP.

The digital camera has both on-board internal storage and an SD card slot. Obviously, mass storage access to the SD card is straightforward by reading it externally, but it once let me access its internal storage as mass storage too.

Is there any way to pretend not to support PTP so the camera is forced to switch to mass storage?

What I already tried (didn't work):

Code: Select all

gsettings set org.gnome.desktop.media-handling automount "false"
gsettings set org.gnome.desktop.media-handling automount-open "false"

[HyperBear]

I did some testing and both Windows 7 and Windows 10 recognize the camera as mass storage device (like a USB stick), yet Linux Mint only recognizes it as PTP.

I think that if PTP could be deactivated somehow, it would force recognizing the camera as mass storage.