Create a new jack
int snd_jack_new(struct snd_card * card, const char * id, int type, struct snd_jack ** jjack);
card
the card instance
id
an identifying string for this jack
type
a bitmask of enum snd_jack_type values that can be detected by this jack
jjack
Used to provide the allocated jack object to the caller.
Creates a new jack object.
Zero if successful, or a negative error code on failure. On success jjack will be initialised.