rt1320_imageinfo
struct rt1320_imageinfo *ptr_img;
fw_offset = sizeof(struct rt1320_dspfwheader) + (sizeof(struct rt1320_imageinfo) * fwheader->num);
ptr_img = (struct rt1320_imageinfo *)&fw->data[sizeof(struct rt1320_dspfwheader) + (sizeof(struct rt1320_imageinfo) * i)];