[alsa-devel] Shutdown() vector in ALSA

[Nobin Mathew]

why no ALSA driver has shutdown() vector implemented?

Is this vector needed to ensure the proper shutdown of the system?

What all needs to be taken care if i want to implement shutdown(),
except hardware shutdown.


struct snd_shutdown_f_ops {
	struct file_operations f_ops;
	struct snd_shutdown_f_ops *next;
};

what this operations means? defined in sound/core/init.c

Is there any need to call these functions?
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
for (i = 0; i < chip->pcm_devs; i++)
	snd_pcm_suspend_all(chip->pcm[i]);