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| author | Dean Camera <dean@fourwalledcubicle.com> | 2010-12-12 16:50:45 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-12-12 16:50:45 +0000 |
| commit | 46677b45896a955b8c62a46d624750213a00b1dd (patch) | |
| tree | 785e49178112a425ef3acf3848e481783694dbe3 /Projects/XPLAINBridge | |
| parent | b67f9f366902ae62d55195f4a4be88d209fb64fe (diff) | |
| download | lufa-46677b45896a955b8c62a46d624750213a00b1dd.tar.gz lufa-46677b45896a955b8c62a46d624750213a00b1dd.tar.bz2 lufa-46677b45896a955b8c62a46d624750213a00b1dd.zip | |
Fixed possible lost data in the XPLAINBridge, USBtoSerial and Benito projects when the host exceeds the packet timeout period on received packets as set by USB_STREAM_TIMEOUT_MS (thanks to Justin Rajewski).
Diffstat (limited to 'Projects/XPLAINBridge')
| -rw-r--r-- | Projects/XPLAINBridge/XPLAINBridge.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/Projects/XPLAINBridge/XPLAINBridge.c b/Projects/XPLAINBridge/XPLAINBridge.c index 7c824ec93..912e68367 100644 --- a/Projects/XPLAINBridge/XPLAINBridge.c +++ b/Projects/XPLAINBridge/XPLAINBridge.c @@ -136,9 +136,19 @@ void UARTBridge_Task(void) /* Clear flush timer expiry flag */ TIFR0 |= (1 << TOV0); - /* Read bytes from the UART receive buffer into the USB IN endpoint */ + /* Read bytes from the USART receive buffer into the USB IN endpoint */ while (BufferCount--) - CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_Remove(&UARTtoUSB_Buffer)); + { + /* Try to send the next byte of data to the host, abort if there is an error without dequeuing */ + if (CDC_Device_SendByte(&VirtualSerial_CDC_Interface, + RingBuffer_Peek(&UARTtoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError) + { + break; + } + + /* Dequeue the already sent byte from the buffer now we have confirmed that no transmission error occurred */ + RingBuffer_Remove(&UARTtoUSB_Buffer); + } } CDC_Device_USBTask(&VirtualSerial_CDC_Interface); |