snd_hda_get_num_conns
num_conns = snd_hda_get_num_conns(codec, dig_out);
num_conns = snd_hda_get_num_conns(codec, 0x0b) + 1;
int nums = snd_hda_get_num_conns(codec, nid);
if (snd_hda_get_num_conns(codec, nid) != 1)
num_dacs = snd_hda_get_num_conns(codec, 0x0a) - 1;
num_cons = snd_hda_get_num_conns(codec, cfg->dig_out_pins[0]);