1 files changed, 1 insertions, 0 deletions
diff --git a/wcfxo.c b/wcfxo.c
index df0d702..6a54dd3 100644
--- a/wcfxo.c
+++ b/wcfxo.c
@@ -632,6 +632,7 @@ static int wcfxo_initialize(struct wcfxo *wc)
 	wc->span.chans = &wc->chan;
 	wc->span.channels = 1;
 	wc->span.hooksig = wcfxo_hooksig;
+	wc->span.irq = wc->dev->irq;
 	wc->span.open = wcfxo_open;
 	wc->span.close = wcfxo_close;
 	wc->span.flags = ZT_FLAG_RBS;