diff --git a/tools/include/atrf.h b/tools/include/atrf.h
index d5e4e11..c83ee50 100644
--- a/tools/include/atrf.h
+++ b/tools/include/atrf.h
@@ -56,5 +56,6 @@ void atrf_sram_write(struct atrf_dsc *dsc, uint8_t addr, uint8_t value);
 uint8_t atrf_sram_read(struct atrf_dsc *dsc, uint8_t addr);
 
 int atrf_interrupt(struct atrf_dsc *dsc);
+int atrf_interrupt_wait(struct atrf_dsc *dsc, int timeout_ms);
 
 #endif /* !ATRF_H */
diff --git a/tools/lib/atrf.c b/tools/lib/atrf.c
index f88ec88..aaf1c15 100644
--- a/tools/lib/atrf.c
+++ b/tools/lib/atrf.c
@@ -323,3 +323,10 @@ int atrf_interrupt(struct atrf_dsc *dsc)
 	return
 	    dsc->driver->interrupt ? dsc->driver->interrupt(dsc->handle) : 1;
 }
+
+
+int atrf_interrupt_wait(struct atrf_dsc *dsc, int timeout_ms)
+{
+	return dsc->driver->interrupt_wait ?
+	    dsc->driver->interrupt_wait(dsc->handle, timeout_ms) : -1;
+}
diff --git a/tools/lib/driver.h b/tools/lib/driver.h
index cf05a9f..727f138 100644
--- a/tools/lib/driver.h
+++ b/tools/lib/driver.h
@@ -36,6 +36,7 @@ struct atrf_driver {
 	void (*sram_write)(void *dsc, uint8_t addr, uint8_t value);
 	uint8_t (*sram_read)(void *dsc, uint8_t addr);
 	int (*interrupt)(void *dsc);
+	int (*interrupt_wait)(void *dsc, int timeout_ms);
 };