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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1220 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2008-11-13 14:46:10 +00:00
parent eebd2150ef
commit e9b004b360
1 changed files with 9 additions and 1 deletions
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10
drivers/serialirq.c
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@ -84,13 +84,21 @@ void uart_xmitchars(FAR uart_dev_t *dev)
while (dev->xmit.head != dev->xmit.tail && uart_txready(dev))
{
/* Send the next byte */
uart_send(dev, dev->xmit.buffer[dev->xmit.tail]);
/* Increment the tail index */
if (++(dev->xmit.tail) >= dev->xmit.size)
{
dev->xmit.tail = 0;
}
/* A byte was removed from the buffer. Inform any waiters
* there there is space available.
*/
if (dev->xmitwaiting)
{
dev->xmitwaiting = FALSE;
@ -139,7 +147,7 @@ void uart_recvchars(FAR uart_dev_t *dev)
dev->recv.buffer[dev->recv.head] = uart_receive(dev, &status);
/* Increment the index */
/* Increment the head index */
dev->recv.head = nexthead;
if (++nexthead >= dev->recv.size)