diff --git a/include/types/fd.h b/include/types/fd.h
index 7f63093548..2bd7c07f2a 100644
--- a/include/types/fd.h
+++ b/include/types/fd.h
@@ -120,7 +120,11 @@ struct fdinfo {
  *    the term() function.
  *  - clo() should be used to do indicate the poller that fd will be closed.
  *  - poll() calls the poller, expiring at <exp>
+ *  - flags indicate what the poller supports (HAP_POLL_F_*)
  */
+
+#define HAP_POLL_F_RDHUP 0x00000001                          /* the poller notifies of HUP with reads */
+
 struct poller {
 	void   *private;                                     /* any private data for the poller */
 	void REGPRM1   (*clo)(const int fd);                 /* mark <fd> as closed */
@@ -130,6 +134,7 @@ struct poller {
 	int  REGPRM1   (*test)(struct poller *p);            /* pre-init check of the poller */
 	int  REGPRM1   (*fork)(struct poller *p);            /* post-fork re-opening */
 	const char   *name;                                  /* poller name */
+	unsigned int flags;                                  /* HAP_POLL_F_* */
 	int    pref;                                         /* try pollers with higher preference first */
 };
 
diff --git a/src/ev_epoll.c b/src/ev_epoll.c
index ccb7c33772..eb2bceb038 100644
--- a/src/ev_epoll.c
+++ b/src/ev_epoll.c
@@ -154,8 +154,10 @@ REGPRM2 static void _do_poll(struct poller *p, int exp)
 		}
 
 		/* always remap RDHUP to HUP as they're used similarly */
-		if (e & EPOLLRDHUP)
+		if (e & EPOLLRDHUP) {
+			cur_poller.flags |= HAP_POLL_F_RDHUP;
 			n |= FD_POLL_HUP;
+		}
 
 		fdtab[fd].ev |= n;
 		if (n & (FD_POLL_IN | FD_POLL_HUP | FD_POLL_ERR))
@@ -263,6 +265,7 @@ static void _do_register(void)
 
 	p->name = "epoll";
 	p->pref = 300;
+	p->flags = 0;
 	p->private = NULL;
 
 	p->clo  = __fd_clo;
diff --git a/src/ev_kqueue.c b/src/ev_kqueue.c
index 081e78aa77..de7da655b2 100644
--- a/src/ev_kqueue.c
+++ b/src/ev_kqueue.c
@@ -234,6 +234,7 @@ static void _do_register(void)
 
 	p->name = "kqueue";
 	p->pref = 300;
+	p->flags = 0;
 	p->private = NULL;
 
 	p->clo  = NULL;
diff --git a/src/ev_poll.c b/src/ev_poll.c
index 80d88eb91e..9a6faa9bf7 100644
--- a/src/ev_poll.c
+++ b/src/ev_poll.c
@@ -235,6 +235,7 @@ static void _do_register(void)
 
 	p->name = "poll";
 	p->pref = 200;
+	p->flags = 0;
 	p->private = NULL;
 
 	p->clo  = __fd_clo;
diff --git a/src/ev_select.c b/src/ev_select.c
index 35d3c77db7..1b40ea1028 100644
--- a/src/ev_select.c
+++ b/src/ev_select.c
@@ -235,6 +235,7 @@ static void _do_register(void)
 
 	p->name = "select";
 	p->pref = 150;
+	p->flags = 0;
 	p->private = NULL;
 
 	p->clo  = __fd_clo;