us428_p4out 89 sound/usb/usx2y/usbus428ctldefs.h struct us428_p4out p4out[N_us428_p4out_BUFS]; us428_p4out 229 sound/usb/usx2y/usbusx2y.c struct us428_p4out *p4out = us428ctls->p4out + send; // FIXME if more than 1 p4out is new, 1 gets lost.