PN533_STD_FRAME_SOF
frame->start_frame = cpu_to_be16(PN533_STD_FRAME_SOF);
if (stdf->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF))
if (frame->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF))
if (std->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF))