mt9v011_read
height = mt9v011_read(sd, R03_MT9V011_HEIGHT);
width = mt9v011_read(sd, R04_MT9V011_WIDTH);
hblank = mt9v011_read(sd, R05_MT9V011_HBLANK);
vblank = mt9v011_read(sd, R06_MT9V011_VBLANK);
speed = mt9v011_read(sd, R0A_MT9V011_CLK_SPEED);
height = mt9v011_read(sd, R03_MT9V011_HEIGHT);
width = mt9v011_read(sd, R04_MT9V011_WIDTH);
hblank = mt9v011_read(sd, R05_MT9V011_HBLANK);
vblank = mt9v011_read(sd, R06_MT9V011_VBLANK);
reg->val = mt9v011_read(sd, reg->reg & 0xff);
version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION);