If you have a TP-Link router, then first you should log in to your router by entering 192.168.1.1 in your browser.
You will be asked for your registered email and password to enter settings.
Then go to USB Sharing and select the device you want to share:
Accessing the share might be a different issue and might not be supported.
I've noticed if I have Windows 7 64-Bit professional loaded I can access my computer content on the Smart TV, and Windows 7 can access the Humax PVR box to view recordings via Media Player - no such joy on GNU/Linux!