Now I have solved the problem.
In emulation in the core I change from mame2015 to mame2000 and now is detecting the controller (2nd player)
Posts made by zrcz
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    RE: Xin Mo problem in Mame Pinball Action Gameposted in GamePad/GPIO/USB encoder
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    Xin Mo problem in Mame Pinball Action Gameposted in GamePad/GPIO/USB encoderHello I have configured dual player in xin-mo dual controller 
 In other games all the buttons work (P1, P2, etc.)
 In Pinball Action game only is recognized the controller for player 1. when i tried configure buttons in mame the controller 2 is not recognized.
 Any help?
 Thanks in advanced