set_bit(USBCAN_DATA_TX,&mess->dev->flags);
clear_bit(USBCAN_MESSAGE_URB_PENDING,&mess->flags);
if (test_bit(USBCAN_THREAD_RUNNING,&mess->dev->flags))
set_bit(USBCAN_DATA_TX,&mess->dev->flags);
clear_bit(USBCAN_MESSAGE_URB_PENDING,&mess->flags);
if (test_bit(USBCAN_THREAD_RUNNING,&mess->dev->flags))