I'd like to do something quite simple ... in my mind.
I've got an "old" photo frame with an usb port and SD card slot (but without networking) that I would like to keep in sync with my NAS "Photo folder"
Since I'm looking forward to buy a PI, I'd like to know how I could achieve this ... in a cheap way ($ and computing power).
My main guess would be to connect both on USB.
Looking at other answers I found Serve up PC hard drive as USB mass storage and USB WiFi dongle device that can emulate a virtual mass storage device for a home video player and on the PI board itself Emulate USB mass storage device
The problem is that both device are Windows only and neither seem to allow to select a specific folder to share.
Getting back to my goal, does any of you have an idea on how to to connect both on USB ?
Bonus question : is there a way to do this multiple times on the same "server" to connect different folders to differents clients (other frames/radios/...) ?
Thanks for the time spent reading my (long) question !