add host class run and stop callback

class/msc/usbh_msc.c

@@ -371,6 +371,7 @@ static int usbh_msc_connect(struct usbh_hubport *hport, uint8_t intf)
 
     USB_LOG_INFO("Register MSC Class:%s\r\n", hport->config.intf[intf].devname);
 
+    usbh_msc_run(msc_class);
     return ret;
 }
 
@@ -391,6 +392,7 @@ static int usbh_msc_disconnect(struct usbh_hubport *hport, uint8_t intf)
             usbh_pipe_free(msc_class->bulkout);
         }
 
+        usbh_msc_stop(msc_class);
         memset(msc_class, 0, sizeof(struct usbh_msc));
         usb_free(msc_class);
 
@@ -401,6 +403,16 @@ static int usbh_msc_disconnect(struct usbh_hubport *hport, uint8_t intf)
     return ret;
 }
 
+__WEAK void usbh_msc_run(struct usbh_msc *msc_class)
+{
+
+}
+
+__WEAK void usbh_msc_stop(struct usbh_msc *msc_class)
+{
+
+}
+
 const struct usbh_class_driver msc_class_driver = {
     .driver_name = "msc",
     .connect = usbh_msc_connect,

class/msc/usbh_msc.h

@@ -25,6 +25,9 @@ struct usbh_msc {
 int usbh_msc_scsi_write10(struct usbh_msc *msc_class, uint32_t start_sector, const uint8_t *buffer, uint32_t nsectors);
 int usbh_msc_scsi_read10(struct usbh_msc *msc_class, uint32_t start_sector, const uint8_t *buffer, uint32_t nsectors);
 
+void usbh_msc_run(struct usbh_msc *msc_class);
+void usbh_msc_stop(struct usbh_msc *msc_class);
+
 #ifdef __cplusplus
 extern "C" {
 #endif