snd_es1688_pcm
int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip, int device);
error = snd_es1688_pcm(card, chip, 0);
EXPORT_SYMBOL(snd_es1688_pcm);
error = snd_es1688_pcm(card, es1688, 0);