sysevent_evc_xsubscribe
errno = sysevent_evc_xsubscribe(sysev_evc,
err = sysevent_evc_xsubscribe(cip->ci_binding, cip->ci_sid,
if ((serr = sysevent_evc_xsubscribe(ihdl->sh_binding, sip->si_sid,
extern int sysevent_evc_xsubscribe(evchan_t *, const char *, const char *,