2 files changed, 20 insertions, 16 deletions
diff --git a/src/host/usbh.c b/src/host/usbh.c
index e60e680c2..e332f35cc 100644
--- a/src/host/usbh.c
+++ b/src/host/usbh.c
@@ -753,29 +753,33 @@ bool tuh_edpt_abort_xfer(uint8_t daddr, uint8_t ep_addr) {
 // USBH API For Class Driver
 //--------------------------------------------------------------------+
 
-uint8_t usbh_get_rhport(uint8_t dev_addr)
-{
-  usbh_device_t* dev = get_device(dev_addr);
+uint8_t usbh_get_rhport(uint8_t dev_addr) {
+  usbh_device_t *dev = get_device(dev_addr);
   return dev ? dev->rhport : _dev0.rhport;
 }
 
-uint8_t* usbh_get_enum_buf(void)
-{
+uint8_t *usbh_get_enum_buf(void) {
   return _usbh_ctrl_buf;
 }
 
-void usbh_int_set(bool enabled)
-{
+void usbh_int_set(bool enabled) {
   // TODO all host controller if multiple are used since they shared the same event queue
-  if (enabled)
-  {
+  if (enabled) {
     hcd_int_enable(_usbh_controller);
-  }else
-  {
+  } else {
     hcd_int_disable(_usbh_controller);
   }
 }
 
+void usbh_defer_func(osal_task_func_t func, void *param, bool in_isr) {
+  hcd_event_t event = { 0 };
+  event.event_id = USBH_EVENT_FUNC_CALL;
+  event.func_call.func = func;
+  event.func_call.param = param;
+
+  osal_queue_send(_usbh_q, &event, in_isr);
+}
+
 //--------------------------------------------------------------------+
 // Endpoint API
 //--------------------------------------------------------------------+
diff --git a/src/host/usbh_pvt.h b/src/host/usbh_pvt.h
index 0b58a91bc..2b61a77db 100644
--- a/src/host/usbh_pvt.h
+++ b/src/host/usbh_pvt.h
@@ -24,8 +24,8 @@
  * This file is part of the TinyUSB stack.
  */
 
-#ifndef _TUSB_USBH_CLASSDRIVER_H_
-#define _TUSB_USBH_CLASSDRIVER_H_
+#ifndef _TUSB_USBH_PVT_H_
+#define _TUSB_USBH_PVT_H_
 
 #include "osal/osal.h"
 #include "common/tusb_fifo.h"
@@ -76,6 +76,8 @@ uint8_t* usbh_get_enum_buf(void);
 
 void usbh_int_set(bool enabled);
 
+void usbh_defer_func(osal_task_func_t func, void *param, bool in_isr);
+
 //--------------------------------------------------------------------+
 // USBH Endpoint API
 //--------------------------------------------------------------------+
@@ -85,12 +87,10 @@ bool usbh_edpt_xfer_with_callback(uint8_t dev_addr, uint8_t ep_addr, uint8_t * b
                                   tuh_xfer_cb_t complete_cb, uintptr_t user_data);
 
 TU_ATTR_ALWAYS_INLINE
-static inline bool usbh_edpt_xfer(uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes)
-{
+static inline bool usbh_edpt_xfer(uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes) {
   return usbh_edpt_xfer_with_callback(dev_addr, ep_addr, buffer, total_bytes, NULL, 0);
 }
 
-
 // Claim an endpoint before submitting a transfer.
 // If caller does not make any transfer, it must release endpoint for others.
 bool usbh_edpt_claim(uint8_t dev_addr, uint8_t ep_addr);