mobile

i'd like to be able to read/write/copy files to/from /sdcard while my phone is connected through USB to my Linux workstation running Ubuntu 12.04, but am experiencing some weird issues. i have USB debugging enabled and have authorized the computer to access the phone when i connected it the first time. when the phone connects as a Camera (PTP), i can see a SAMSUNG_Android partition show up on my workstation, but when i try to open it nothing happens... kind of just hangs there trying to load the files. if i connect the phone as a Media Device (MTP) then i again see a SAMSUNG_Android partition show up. when i open it, it will load the directory /sdcard but all of the subdirectories are empty, e.g. DCIM shows 0 items, Pictures shows 0 items, etc... all of the subfolders are empty and so i can't read anything from /sdcard except the root directory structure itself. i can copy a file from my workstation to the phone e.g. to /sdcard/Documents and it will show up in the dir listing on the workstation as well as the phone, but as soon as i reconnect the phone, the Documents directory is empty again showing 0 items, but the file i just copied to the phone is still on the phone. if i turn on private mode and reconnect the phone, then i can see the private files listed on my workstation on a second SAMSUNG_Android partition and i can read/write to that partition fine (note that i have Wanam Xposed installed and have disabled secure storage).

so basically i can't read from /sdcard through USB connection... if i want to get files off the device i have to use "adb pull" for each one

i have the /etc/udev/rules.d/51-android.rules file created with the following content: