DT_COLS
gspca_dev->cam.bulk_size = DT_COLS*512;
if (len != DT_COLS*512) {
data + 16*DT_COLS,
len - 32*DT_COLS); /* skip first & last 16 lines */
{DT_COLS, 480, V4L2_PIX_FMT_GREY, V4L2_FIELD_NONE,
.bytesperline = DT_COLS,
.sizeimage = DT_COLS*480,
{DT_COLS, 480, V4L2_PIX_FMT_SRGGB8, V4L2_FIELD_NONE,
.bytesperline = DT_COLS,
.sizeimage = DT_COLS*480,