SND_AC97_UPDATE_BITS(9) Control/Mixer API SND_AC97_UPDATE_BITS(9)
NAME
snd_ac97_update_bits - update the bits on the given register
SYNOPSIS
int snd_ac97_update_bits(struct snd_ac97 * ac97, unsigned short reg, unsigned short mask, unsigned short value);
ARGUMENTS
ac97
the ac97 instance
reg
the register to change
mask
the bit-mask to change
value
the value to set
DESCRIPTION
Updates the masked-bits on the given register only when the value is changed.
Returns 1 if the bits are changed, 0 if no change, or a negative code on failure.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 SND_AC97_UPDATE_BITS(9)
