ppp_idle 573 net/if_ppp.c ((struct ppp_idle *)data)->xmit_idle = t - sc->sc_last_sent; ppp_idle 574 net/if_ppp.c ((struct ppp_idle *)data)->recv_idle = t - sc->sc_last_recv; ppp_idle 137 net/if_ppp.h #define PPPIOCGIDLE _IOR('t', 74, struct ppp_idle) /* get idle time */ ppp_idle 165 net/ppp_defs.h struct ppp_idle {