UAUDIO_NAMEMAX
strlcpy(u->name, d->name, UAUDIO_NAMEMAX);
strlcpy(u->name, s->name, UAUDIO_NAMEMAX);
char name[UAUDIO_NAMEMAX];
snprintf(name, UAUDIO_NAMEMAX, "%s_%s", d->name, s->name);
char name[UAUDIO_NAMEMAX];
snprintf(res, UAUDIO_NAMEMAX, "%s", templ);
snprintf(res, UAUDIO_NAMEMAX, "%s%s%u", templ, sep, n->unit);