return -ENXIO;
alts = &iface->altsetting[1];
altsd = get_iface_desc(alts);
- if (alts->extralen != 11 || alts->extra[1] != CS_AUDIO_INTERFACE ||
+ if (alts->extralen != 11 || alts->extra[1] != USB_DT_CS_INTERFACE ||
altsd->bNumEndpoints != 1)
return -ENXIO;