suse man page for snd_card_file_add

SND_CARD_FILE_ADD(9)						   Sound Devices					      SND_CARD_FILE_ADD(9)

NAME
       snd_card_file_add - add the file to the file list of the card

SYNOPSIS
       int snd_card_file_add(struct snd_card * card, struct file * file);

ARGUMENTS
       card
	   soundcard structure

       file
	   file pointer

DESCRIPTION
       This function adds the file to the file linked-list of the card. This linked-list is used to keep tracking the connection state, and to
       avoid the release of busy resources by hotplug.

       Returns zero or a negative error code.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						      SND_CARD_FILE_ADD(9)