Does the Samsung tablet 3 SM-T211 have USB host mode OTG support? If not, is there a way to enable / support it?
At least one of the USB devices would need support for host-mode USB - which is a hardware feature and therefore can't be upgraded via software - and the other needs to report as mass storage USB device.
Since your tablet has OTG (=host-mode USB) support it may be a simply compatibility issue. Bluetooth may be an option, but it's slow.