usb game pad not working in mario , tennis , tetris

[manit123]

i am using retropie 2.3 on pi b+ .
Copied nes files to OS .
My usb game pad is http://www.enter-multimedia.com/gamepad_single_vibration.html
Configured a , b , pageup , pagedown , start , select to buttons of gamepad.
i can naviagate using up,down,left,right of d-pad in emulation station and a , b for start & back respectively .
Inside game , the gamepad buttons do not work . keyboard arrow keys , letter x and enter work .
What should I do ?

[manit123]

got my usb gamepads working by running

sudo /opt/retropie/emulators/RetroArch/installdir/bin/retroarch-joyconfig -a /opt/retropie/emulators/RetroArch/configs/gamepad.cfg

Also added following lines to cfg file for

input_enable_hotkey_btn = 4
input_exit_emulator_btn = 5
input_save_state_btn = 6
input_load_state_btn = 7

Thus in combination with left trigger , i can exit emulator &save ,load stateswith my gamepad .

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