REG_REPORT_READ
countval_lo = readl_relaxed(ad->base + REG_REPORT_READ(channo));
countval_hi = readl_relaxed(ad->base + REG_REPORT_READ(channo));
unk1 = readl_relaxed(ad->base + REG_REPORT_READ(channo));
flags = readl_relaxed(ad->base + REG_REPORT_READ(channo));