usb_host: Fix spelling errors

components/usb/hcd_dwc.c

@@ -229,7 +229,7 @@ typedef struct {
  * @brief Object representing a pipe in the HCD layer
  */
 struct pipe_obj {
-    //URB queueing related
+    //URB queuing related
     TAILQ_HEAD(tailhead_urb_pending, urb_s) pending_urb_tailq;
     TAILQ_HEAD(tailhead_urb_done, urb_s) done_urb_tailq;
     int num_urb_pending;
@@ -264,7 +264,7 @@ struct pipe_obj {
         struct {
             uint32_t waiting_halt: 1;
             uint32_t pipe_cmd_processing: 1;
-            uint32_t has_urb: 1;            //Indicates there is at least one URB either pending, inflight, or done
+            uint32_t has_urb: 1;            //Indicates there is at least one URB either pending, in-flight, or done
             uint32_t persist: 1;            //indicates that this pipe should persist through a run-time port reset
             uint32_t reset_lock: 1;         //Indicates that this pipe is undergoing a run-time reset
             uint32_t reserved27: 27;

components/usb/private_include/usbh.h

@@ -319,7 +319,7 @@ esp_err_t usbh_dev_submit_ctrl_urb(usb_device_handle_t dev_hdl, urb_t *urb);
  * - A client should call this function to allocate all endpoints in an interface that the client has claimed.
  * - A client must allocate an endpoint using this function before attempting to communicate with it
  * - Once the client allocates an endpoint, the client is now owns/manages the endpoint. No other client should use or
- * deallocte the endpoint.
+ * deallocate the endpoint.
  *
  * @note This function can block
  * @note Default endpoints (EP0) are owned by the USBH. For control transfers, use usbh_dev_submit_ctrl_urb() instead
@@ -489,7 +489,7 @@ esp_err_t usbh_hub_enum_fill_config_desc(usb_device_handle_t dev_hdl, const usb_
  * @note Must call in sequence
  * @param dev_hdl Device handle
  * @param str_desc Pointer to string descriptor
- * @param select Select which string descriptor. 0/1/2 for Manufacturer/Product/Serial Number string descriptors respecitvely
+ * @param select Select which string descriptor. 0/1/2 for Manufacturer/Product/Serial Number string descriptors respectively
  * @return esp_err_t
  */
 esp_err_t usbh_hub_enum_fill_str_desc(usb_device_handle_t dev_hdl, const usb_str_desc_t *str_desc, int select);

components/usb/usb_host.c

@@ -619,7 +619,7 @@ static void _handle_pending_ep(client_t *client_obj)
                 urb_t *urb;
                 usbh_ep_dequeue_urb(ep_wrap->constant.ep_hdl, &urb);
                 while (urb != NULL) {
-                    //Clear the transfer's inflight flag to indicate the transfer is no longer inflight
+                    //Clear the transfer's in-flight flag to indicate the transfer is no longer in-flight
                     urb->usb_host_inflight = false;
                     urb->transfer.callback(&urb->transfer);
                     num_urb_dequeued++;
@@ -633,7 +633,7 @@ static void _handle_pending_ep(client_t *client_obj)
         }
         HOST_ENTER_CRITICAL();
 
-        //Update the endpoint's number of URB's inflight
+        //Update the endpoint's number of URB's in-flight
         assert(num_urb_dequeued <= ep_wrap->dynamic.num_urb_inflight);
         ep_wrap->dynamic.num_urb_inflight -= num_urb_dequeued;
     }
@@ -778,7 +778,7 @@ esp_err_t usb_host_client_handle_events(usb_host_client_handle_t client_hdl, Tic
             TAILQ_REMOVE(&client_obj->dynamic.done_ctrl_xfer_tailq, urb, tailq_entry);
             client_obj->dynamic.num_done_ctrl_xfer--;
             HOST_EXIT_CRITICAL();
-            //Clear the transfer's inflight flag to indicate the transfer is no longer inflight
+            //Clear the transfer's in-flight flag to indicate the transfer is no longer in-flight
             urb->usb_host_inflight = false;
             //Call the transfer's callback
             urb->transfer.callback(&urb->transfer);
@@ -1095,7 +1095,7 @@ static esp_err_t interface_release(client_t *client_obj, usb_device_handle_t dev
     bool can_free = true;
     for (int i = 0; i < intf_obj->constant.intf_desc->bNumEndpoints; i++) {
         ep_wrapper_t *ep_wrap = intf_obj->constant.endpoints[i];
-        //Endpoint must not be on the pending list and must not have inflight URBs
+        //Endpoint must not be on the pending list and must not have in-flight URBs
         if (ep_wrap->dynamic.num_urb_inflight != 0 || ep_wrap->dynamic.flags.pending) {
             can_free = false;
             break;
@@ -1281,7 +1281,7 @@ esp_err_t usb_host_transfer_submit(usb_transfer_t *transfer)
     }
     ep_wrap = usbh_ep_get_context(ep_hdl);
     assert(ep_wrap != NULL);
-    //Check that we are not submitting a transfer already inflight
+    //Check that we are not submitting a transfer already in-flight
     HOST_CHECK(!urb_obj->usb_host_inflight, ESP_ERR_NOT_FINISHED);
     urb_obj->usb_host_inflight = true;
     HOST_ENTER_CRITICAL();
@@ -1313,7 +1313,7 @@ esp_err_t usb_host_transfer_submit_control(usb_host_client_handle_t client_hdl,
 
     usb_device_handle_t dev_hdl = transfer->device_handle;
     urb_t *urb_obj = __containerof(transfer, urb_t, transfer);
-    //Check that we are not submitting a transfer already inflight
+    //Check that we are not submitting a transfer already in-flight
     HOST_CHECK(!urb_obj->usb_host_inflight, ESP_ERR_NOT_FINISHED);
     urb_obj->usb_host_inflight = true;
     //Save client handle into URB

components/usb/usbh.c

@@ -786,7 +786,7 @@ esp_err_t usbh_dev_close(usb_device_handle_t dev_hdl)
     bool call_proc_req_cb = false;
     if (dev_obj->dynamic.ref_count == 0) {
         //Sanity check.
-        assert(dev_obj->dynamic.num_ctrl_xfers_inflight == 0);  //There cannot be any control transfer inflight
+        assert(dev_obj->dynamic.num_ctrl_xfers_inflight == 0);  //There cannot be any control transfer in-flight
         assert(!dev_obj->dynamic.flags.waiting_free);   //This can only be set when ref count reaches 0
         if (dev_obj->dynamic.flags.is_gone) {
             //Device is already gone so it's port is already disabled. Trigger the USBH process to free the device