snd_ac97_update_bits

Langue: en

Version: October 2010 (fedora - 01/12/10)

Section: 9 (Appels noyau Linux)

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.