update vendor open()

src/class/vendor/vendor_device.c

@@ -166,9 +166,9 @@ void vendord_reset(uint8_t rhport)
   }
 }
 
-bool vendord_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_len)
+uint16_t vendord_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len)
 {
-  TU_VERIFY(TUSB_CLASS_VENDOR_SPECIFIC == itf_desc->bInterfaceClass);
+  TU_VERIFY(TUSB_CLASS_VENDOR_SPECIFIC == itf_desc->bInterfaceClass, 0);
 
   // Find available interface
   vendord_interface_t* p_vendor = NULL;
@@ -180,18 +180,18 @@ bool vendord_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16
       break;
     }
   }
-  TU_VERIFY(p_vendor);
+  TU_VERIFY(p_vendor, 0);
 
   // Open endpoint pair with usbd helper
-  TU_ASSERT(usbd_open_edpt_pair(rhport, tu_desc_next(itf_desc), 2, TUSB_XFER_BULK, &p_vendor->ep_out, &p_vendor->ep_in));
+  TU_ASSERT(usbd_open_edpt_pair(rhport, tu_desc_next(itf_desc), 2, TUSB_XFER_BULK, &p_vendor->ep_out, &p_vendor->ep_in), 0);
 
   p_vendor->itf_num = itf_desc->bInterfaceNumber;
-  (*p_len) = sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
+  uint16_t const drv_len = sizeof(tusb_desc_interface_t) + itf_desc->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
 
   // Prepare for incoming data
-  TU_ASSERT(usbd_edpt_xfer(rhport, p_vendor->ep_out, p_vendor->epout_buf, sizeof(p_vendor->epout_buf)));
+  TU_ASSERT(usbd_edpt_xfer(rhport, p_vendor->ep_out, p_vendor->epout_buf, sizeof(p_vendor->epout_buf)), drv_len);
 
-  return true;
+  return drv_len;
 }
 
 bool vendord_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes)

src/class/vendor/vendor_device.h

@@ -118,10 +118,10 @@ static inline uint32_t tud_vendor_write_available (void)
 //--------------------------------------------------------------------+
 // Internal Class Driver API
 //--------------------------------------------------------------------+
-void vendord_init(void);
-void vendord_reset(uint8_t rhport);
-bool vendord_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t *p_length);
-bool vendord_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
+void     vendord_init(void);
+void     vendord_reset(uint8_t rhport);
+uint16_t vendord_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
+bool     vendord_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
 
 #ifdef __cplusplus
  }