diff --git a/src/mux_h1.c b/src/mux_h1.c
index 4f3ba67..2c58d74 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -2498,6 +2498,19 @@
 }
 #endif
 
+static int h1_ctl(struct connection *conn, enum mux_ctl_type mux_ctl, void *output)
+{
+	int ret = 0;
+	switch (mux_ctl) {
+	case MUX_STATUS:
+		if (conn->flags & CO_FL_CONNECTED)
+			ret |= MUX_STATUS_READY;
+		return ret;
+	default:
+		return -1;
+	}
+}
+
 /* for debugging with CLI's "show fd" command */
 static void h1_show_fd(struct buffer *msg, struct connection *conn)
 {
@@ -2556,6 +2569,7 @@
 	.shutw       = h1_shutw,
 	.show_fd     = h1_show_fd,
 	.reset       = h1_reset,
+	.ctl         = h1_ctl,
 	.flags       = MX_FL_HTX,
 	.name        = "H1",
 };
diff --git a/src/mux_h2.c b/src/mux_h2.c
index ac34a72..8116df4 100644
--- a/src/mux_h2.c
+++ b/src/mux_h2.c
@@ -3217,6 +3217,24 @@
 	return NULL;
 }
 
+static int h2_ctl(struct connection *conn, enum mux_ctl_type mux_ctl, void *output)
+{
+	int ret = 0;
+	struct h2c *h2c = conn->ctx;
+
+	switch (mux_ctl) {
+	case MUX_STATUS:
+		/* Only consider the mux to be ready if we're done with
+		 * the preface and settings, and we had no error.
+		 */
+		if (h2c->st0 >= H2_CS_FRAME_H && h2c->st0 < H2_CS_ERROR)
+			ret |= MUX_STATUS_READY;
+		return ret;
+	default:
+		return -1;
+	}
+}
+
 /*
  * Destroy the mux and the associated connection, if it is no longer used
  */
@@ -5932,6 +5950,7 @@
 	.used_streams = h2_used_streams,
 	.shutr = h2_shutr,
 	.shutw = h2_shutw,
+	.ctl = h2_ctl,
 	.show_fd = h2_show_fd,
 	.flags = MX_FL_CLEAN_ABRT,
 	.name = "H2",
@@ -5960,6 +5979,7 @@
 	.used_streams = h2_used_streams,
 	.shutr = h2_shutr,
 	.shutw = h2_shutw,
+	.ctl = h2_ctl,
 	.show_fd = h2_show_fd,
 	.flags = MX_FL_CLEAN_ABRT|MX_FL_HTX,
 	.name = "H2",
diff --git a/src/mux_pt.c b/src/mux_pt.c
index 813c5fa..c66b746 100644
--- a/src/mux_pt.c
+++ b/src/mux_pt.c
@@ -333,6 +333,19 @@
 }
 #endif
 
+static int mux_pt_ctl(struct connection *conn, enum mux_ctl_type mux_ctl, void *output)
+{
+	int ret = 0;
+	switch (mux_ctl) {
+	case MUX_STATUS:
+		if (conn->flags & CO_FL_CONNECTED)
+			ret |= MUX_STATUS_READY;
+		return ret;
+	default:
+		return -1;
+	}
+}
+
 /* The mux operations */
 const struct mux_ops mux_pt_ops = {
 	.init = mux_pt_init,
@@ -351,6 +364,7 @@
 	.avail_streams = mux_pt_avail_streams,
 	.used_streams = mux_pt_used_streams,
 	.destroy = mux_pt_destroy_meth,
+	.ctl = mux_pt_ctl,
 	.shutr = mux_pt_shutr,
 	.shutw = mux_pt_shutw,
 	.flags = MX_FL_NONE,