SND_AC97_UPDATE(9)                      Control/Mixer API                      SND_AC97_UPDATE(9)



NAME
       snd_ac97_update - update the value on the given register

SYNOPSIS
       int snd_ac97_update(struct snd_ac97 * ac97, unsigned short reg, unsigned short value);

ARGUMENTS
       ac97
           the ac97 instance

       reg
           the register to change

       value
           the value to set

DESCRIPTION
       Compares the value with the register cache and updates the value only when the value is
       changed.

RETURN
       1 if the value is changed, 0 if no change, or a negative code on failure.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        SND_AC97_UPDATE(9)