diff options
Diffstat (limited to 'LUFA')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Device/CDC.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Device/CDC.c b/LUFA/Drivers/USB/Class/Device/CDC.c index 003a6b31a..31fd8f1b0 100644 --- a/LUFA/Drivers/USB/Class/Device/CDC.c +++ b/LUFA/Drivers/USB/Class/Device/CDC.c @@ -174,6 +174,9 @@ uint8_t CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) uint16_t CDC_Device_BytesReceived(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) || !(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS))
+ return 0;
+
Endpoint_SelectEndpoint(CDCInterfaceInfo->Config.DataOUTEndpointNumber);
if (Endpoint_IsOUTReceived() && !(Endpoint_BytesInEndpoint()))
|