int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
                          hda_nid_t *start_id)
{
        unsigned int parm;

        parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
        if (parm == -1)
                return 0;

/* this mean we need to fix the param when codec is vt1802  */


        *start_id = (parm >> 16) & 0x7fff;
        return (int)(parm & 0x7fff);
}

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https://bugs.launchpad.net/bugs/1313904

Title:
  [W230SS, VIA VT1802, Green Headphone Out, Front] No sound after
  suspend/resume

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