snd_card_disconnect(9) centos man page | unix.com

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

NAME
       snd_card_disconnect - disconnect all APIs from the file-operations (user space)

SYNOPSIS
       int snd_card_disconnect(struct snd_card * card);

ARGUMENTS
       card
	   soundcard structure

DESCRIPTION
       Disconnects all APIs from the file-operations (user space).

RETURN
       Zero, otherwise a negative error code.

NOTE
       The current implementation replaces all active file->f_op with special dummy file operations (they do nothing except release).

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						    SND_CARD_DISCONNECT(9)