static int snd_pcm_lib_ioctl_fifo_size(struct snd_pcm_substream *substream,
				       void *arg)
{
	struct snd_pcm_hw_params *params = arg;
	snd_pcm_format_t format;
	int channels;
	ssize_t frame_size;

	params->fifo_size = substream->runtime->hw.fifo_size;
	if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_FIFO_IN_FRAMES)) {
		format = params_format(params);
		channels = params_channels(params);
		frame_size = snd_pcm_format_size(format, channels);
		if (frame_size > 0)
			params->fifo_size /= (unsigned)frame_size;
	}
	return 0;
}
static int snd_pcm_lib_ioctl_fifo_size(struct snd_pcm_substream *substream,
				       void *arg)
{
	struct snd_pcm_hw_params *params = arg;
	snd_pcm_format_t format;
	int channels;
	ssize_t frame_size;

	params->fifo_size = substream->runtime->hw.fifo_size;
	if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_FIFO_IN_FRAMES)) {
		format = params_format(params);
		channels = params_channels(params);
		frame_size = snd_pcm_format_size(format, channels);
		if (frame_size > 0)
			params->fifo_size /= (unsigned)frame_size;
	}
	return 0;
}