Re: [RFC 00/xx] ALSA: ALSA: add snd_stream_is_playback/capture()

Hi Sakamoto-san

It is better to rename these inline functions introduced in this patchset so that they belong to PCM category, since in Linux sound subsystem there is another type of substream in rawmidi category.

The concept of 'substream' corresponds to 'subdevice' in some operations to PCM/RawMidi cdev, thus should be handled with enough care as much as possible, in my opinion.

Ah, indeed. Thank you for pointing it. So something like

snd_stream_is_playback() -> snd_pcm_stream_is_playback() snd_substream_is_playback() -> snd_pcm_substream_is_playback()

Thank you for your help !!

Best regards --- Kuninori Morimoto