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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.

RETURN

1 if the bits are changed, 0 if no change, or a negative code on failure.

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16