Hi Amadeusz
Thank you for comment
Many drivers are using below code to know the direction.
if (direction == SNDRV_PCM_STREAM_PLAYBACK)
Add snd_stream_is_playback/capture() macro to handle it. It also adds snd_substream_is_playback/capture() to handle snd_pcm_substream.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com
(snip)
Perhaps you could use generics here, so you could have one caller for both cases?
Something like: #define snd_pcm_is_playback(x) _Generic((x), \ int : (x == SNDRV_PCM_STREAM_PLAYBACK), \ struct snd_pcm_substream *substream * : (x->stream == SNDRV_PCM_STREAM_PLAYBACK))(x) or just call the above functions in it?
Actually, I have tried _Generic() first, but changed to current style, because many drivers are using own direction variable, and they are using own variable types. But I think more again.
Thank you for your help !!
Best regards --- Kuninori Morimoto