I tried Dslrcontroller app in Istanbul Turkey, at Teknosa store with Samsung SM T-320 Galaxy Tab Pro 8 4 8" tablet with Canon Eos 60D Dslr camera having ML with SLX-425 micro to Usb female, Usb OTG Cable from S-Link ( 14 tl), and Usb A to Usb B male Usb mini connection cable (1,0 m. long, 8 tl), Digitus brand, two of which i bought at Bimeks store Istanbul, mecidiyekoy, works perfectly.
Than i tried a Galaxy Tab S SM T700 8"16 gb tablet running Android 4.4.2 from Teknosa Besiktas, works perfect with above cable and camera configuration, assume they will work with 5D too.
And i had a Asus Nexus 7 Android 4.2.1, tried the above and 5D mark 2 , no ML, works perfectly.