diff options
| -rw-r--r-- | core/usbd_core.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/core/usbd_core.c b/core/usbd_core.c index 48723df9..9fc05ec2 100644 --- a/core/usbd_core.c +++ b/core/usbd_core.c @@ -950,8 +950,15 @@ static void usbd_class_event_notify_handler(uint8_t event, void *arg) { struct usbd_interface *intf = usb_slist_entry(i, struct usbd_interface, list); - if (intf->notify_handler) { - intf->notify_handler(event, arg); + if (arg) { + struct usb_interface_descriptor *desc = (struct usb_interface_descriptor *)arg; + if (intf->notify_handler && (desc->bInterfaceNumber == (intf->intf_num))) { + intf->notify_handler(event, arg); + } + } else { + if (intf->notify_handler) { + intf->notify_handler(event, arg); + } } } } |