diff options
| author | Dean <Dean@d5102386-fcda-11dd-9fdb-3debd5008f28> | 2010-12-12 16:50:45 +0000 |
|---|---|---|
| committer | Dean <Dean@d5102386-fcda-11dd-9fdb-3debd5008f28> | 2010-12-12 16:50:45 +0000 |
| commit | 9e17a68245dda43b741dc193b1098729886c94c2 (patch) | |
| tree | 785e49178112a425ef3acf3848e481783694dbe3 /Projects/USBtoSerial/USBtoSerial.c | |
| parent | 8fa52c48863865cc59f1eb3fa4778f6e77a1eb2d (diff) | |
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).
git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@1603 d5102386-fcda-11dd-9fdb-3debd5008f28
Diffstat (limited to 'Projects/USBtoSerial/USBtoSerial.c')
| -rw-r--r-- | Projects/USBtoSerial/USBtoSerial.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Projects/USBtoSerial/USBtoSerial.c b/Projects/USBtoSerial/USBtoSerial.c index 1dfd7089..477dd44f 100644 --- a/Projects/USBtoSerial/USBtoSerial.c +++ b/Projects/USBtoSerial/USBtoSerial.c @@ -100,7 +100,17 @@ int main(void) /* Read bytes from the USART receive buffer into the USB IN endpoint */ while (BufferCount--) - CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_Remove(&USARTtoUSB_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(&USARTtoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError) + { + break; + } + + /* Dequeue the already sent byte from the buffer now we have confirmed that no transmission error occurred */ + RingBuffer_Remove(&USARTtoUSB_Buffer); + } } /* Load the next byte from the USART transmit buffer into the USART */ |