dma address for the 2nd video decoder on DM8000

  • Does anyone know how to find dma address for the 2nd video decoder on DM8000 for screen-grabbing PiP?
    I found this address 0x10c02000 for the first decoder in AiO stb screengrabber.
    I tried 0x10c01000 ,0x10c03000, 0x10c04000 but without success. Is it dangerous just to test nearest addresses?
    Is there datasheet for BRCM7400 chipset or source codes for its driver?


    Thank you