USB norma to definuje odkedy je definovane OTG. Nechce sa mi teraz nahanat specifikaciu, ale staci napr. toto https://en.wikipedia.org/wiki/USB_On-The-Go#Specif ications
P.S. a tazatel jasne pise ze nejaky samsung kabel mu ide (nikto nevie kde mu ide co mu ide) a ze ziaden iny kabel "nezaregistruje" (nikto nevie kde mu co nezarigstruje ani kam to strcil). Asi ste vsetci jasnovidci, a ked sa opytam co presne strka kam presne, tak tu zrazu je tona pindov. Standardny USB kabel akykolvek ma fungovat so samsungom na pripojenie PC korektne. Ked mu nefunguje tak ma najskor problem s kontaktami alebo konektorom samotnym, alebo kupuje nejake sracky kable.A device with a micro-A plug inserted becomes an OTG A-device, and a device with a micro-B plug inserted becomes a B-device. The type of plug inserted is detected by the state of the pin ID.
Three additional ID pin states are defined[4] at the nominal resistance values of 124 kΩ, 68 kΩ, and 36.5 kΩ, with respect to the ground pin. These permit the device to work with USB Accessory Charger Adapters that allows the OTG device to be attached to both a charger and another device simultaneously.[6]