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SND_CTL_REPLACE(9) Sound Devices SND_CTL_REPLACE(9)

NAME

snd_ctl_replace - replace the control instance of the card

SYNOPSIS

int snd_ctl_replace(struct snd_card * card, struct snd_kcontrol * kcontrol, bool add_on_replace);

ARGUMENTS

card
the card instance
kcontrol
the control instance to replace
add_on_replace
add the control if not already added

DESCRIPTION

Replaces the given control. If the given control does not exist and the add_on_replace flag is set, the control is added. If the control exists, it is destroyed first.
Returns zero if successful, or a negative error code on failure.
It frees automatically the control which cannot be added or replaced.

COPYRIGHT

March 2016 Kernel Hackers Manual 3.2.