sync_slave 69 sound/usb/card.h struct snd_usb_endpoint *sync_slave; sync_slave 166 sound/usb/endpoint.c if (ep->sync_slave) sync_slave 167 sound/usb/endpoint.c snd_usb_handle_sync_urb(ep->sync_slave, ep, urb); sync_slave 529 sound/usb/endpoint.c ep->sync_slave = NULL; sync_slave 252 sound/usb/pcm.c ep->sync_slave = subs->data_endpoint;