snd_ac97_update_bits (9) Linux Manual Page
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.
Return
1 if the bits are changed, 0 if no change, or a negative code on failure.