centos man page for snd_card_register

SND_CARD_REGISTER(9)					  Management of Cards and Device				      SND_CARD_REGISTER(9)

NAME
       snd_card_register - register the soundcard

SYNOPSIS
       int snd_card_register(struct snd_card * card);

ARGUMENTS
       card
	   soundcard structure

DESCRIPTION
       This function registers all the devices assigned to the soundcard. Until calling this, the ALSA control interface is blocked from the
       external accesses. Thus, you should call this function at the end of the initialization of the card.

RETURN
       Zero otherwise a negative error code if the registration failed.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      SND_CARD_REGISTER(9)