added optional dcd_control_status_complete()

2 files changed, 5 insertions, 0 deletions

diff --git a/src/device/dcd.h b/src/device/dcd.h
index 9fa98c669..c88465cbb 100644
--- a/src/device/dcd.h
+++ b/src/device/dcd.h
@@ -119,6 +119,10 @@ void dcd_edpt_stall       (uint8_t rhport, uint8_t ep_addr);
 // clear stall, data toggle is also reset to DATA0

 void dcd_edpt_clear_stall (uint8_t rhport, uint8_t ep_addr);

 

+// Invoked when a control transfer's status stage is complete.

+// May help DCD to prepare for next control transfer, this API is optional.

+void dcd_control_status_complete(uint8_t rhport) TU_ATTR_WEAK;

+

 //--------------------------------------------------------------------+

 // Event API

 //--------------------------------------------------------------------+

diff --git a/src/device/usbd_control.c b/src/device/usbd_control.c
index f41614ef1..d37e9ec2a 100644
--- a/src/device/usbd_control.c
+++ b/src/device/usbd_control.c
@@ -129,6 +129,7 @@ bool usbd_control_xfer_cb (uint8_t rhport, uint8_t ep_addr, xfer_result_t result
   if ( tu_edpt_dir(ep_addr) != _ctrl_xfer.request.bmRequestType_bit.direction )

   {

     TU_ASSERT(0 == xferred_bytes);

+    if (dcd_control_status_complete) dcd_control_status_complete(rhport);

     return true;

   }