add optional event hook callback tud_event_hook_cb() and tuh_event_hook_cb()

1 files changed, 4 insertions, 1 deletions

diff --git a/src/host/usbh.h b/src/host/usbh.h
index 770d70dfe..7591c7672 100644
--- a/src/host/usbh.h
+++ b/src/host/usbh.h
@@ -90,9 +90,12 @@ TU_ATTR_WEAK void tuh_mount_cb (uint8_t daddr);
 // Invoked when a device failed to mount during enumeration process
 // TU_ATTR_WEAK void tuh_mount_failed_cb (uint8_t daddr);
 
-/// Invoked when a device is unmounted (detached)
+// Invoked when a device is unmounted (detached)
 TU_ATTR_WEAK void tuh_umount_cb(uint8_t daddr);
 
+// Invoked when there is a new usb event, which need to be processed by tuh_task()/tuh_task_ext()
+TU_ATTR_WEAK void tuh_event_hook_cb(uint8_t rhport, uint32_t eventid, bool in_isr);
+
 //--------------------------------------------------------------------+
 // APPLICATION API
 //--------------------------------------------------------------------+