hdmi_audio_infoframe_pack
ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
EXPORT_SYMBOL(hdmi_audio_infoframe_pack);
length = hdmi_audio_infoframe_pack(&frame->audio, buffer, size);
err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));