mod_play_vchans
static int mod_play_vchans(struct snd_dev *, void *);
{ "play.vchans", F(play.vchans), NUM, mod_play_vchans },
rc = mod_play_vchans(dp, __DECONST(char *, zero)) ||
rc = mod_play_vchans(dp, __DECONST(char *, one)) ||