USB port/direct TV receiver....can you plug camera in and look at pictures?

title says it all.

My parents’ direct TV receiver has a USB port, I assumed that I could plug my digital camera’s USB cord directly into the box and look at the pictures. Is that possible? How can I do that?

THANKS!!

http://www.directv.com/DTVAPP/global/contentPage.jsp?assetId=P4310202