Re: USB adapter help
OP I believe you are referring to an otg usb. If so, you probably have stock ROM 4.1.x. Samsung disabled otg support at least for p3113. I had to use a custom ROM like sungsonic hd. I lost IR blaster support but I use otg more often. I suggest you do same.
Sent from my HTC One VX using xda premium
Primary Phone: HTC One VX JmzTotemC2+Jmz Linaro Kernel.
Secondary Phone: LG Nitro HD miroslav_mm CM10.
Tablet: Samsung Galaxy Tab 2 7.0 P3113 with PA 2.52.
Motorola Stereo Bluetooth S305.
iPazzPort Bluetooth Keyboard.
Sony Ericsson LiveView.
Wiimote with Motion Plus and Classic Pro Controller.