ov7670_read
ret = ov7670_read(sd, REG_CMATRIX_SIGN, &signbits);
ov7670_read(sd, REG_COM8, &com8);
ret = ov7670_read(sd, REG_MVFP, &v);
ret = ov7670_read(sd, REG_MVFP, &v);
ret = ov7670_read(sd, REG_GAIN, &gain);
ret = ov7670_read(sd, REG_COM8, &com8);
ret = ov7670_read(sd, REG_COM8, &com8);
ret = ov7670_read(sd, REG_COM1, &com1) +
ov7670_read(sd, REG_COM8, &com8) +
ov7670_read(sd, REG_AECHH, &aechh);
ret = ov7670_read(sd, REG_COM8, &com8);
ret = ov7670_read(sd, reg->reg & 0xff, &val);
ret = ov7670_read(sd, reg, &orig);
ret = ov7670_read(sd, REG_MIDH, &v);
ret = ov7670_read(sd, REG_MIDL, &v);
ret = ov7670_read(sd, REG_PID, &v);
ret = ov7670_read(sd, REG_VER, &v);
ret = ov7670_read(sd, REG_HREF, &v);
ret = ov7670_read(sd, REG_VREF, &v);