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AD1986A=======  6stack        6-jack, separate surrounds (default)  3stack        3-stack, shared surrounds  laptop        2-channel only (FSC V2060, Samsung M50)  laptop-eapd   2-channel with EAPD (ASUS A6J)  laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100)  ultra         2-channel with EAPD (Samsung Ultra tablet PC)  samsung       2-channel with EAPD (Samsung R65)  samsung-p50   2-channel with HP-automute (Samsung P50)