DVBT_PIP_ON
{DVBT_PIP_ON, 0x0},
[DVBT_PIP_ON] = {0x021, 3, 3},
ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x1);
ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x0);