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| author | Gregory Nutt <gnutt@nuttx.org> | 2015-03-13 07:22:43 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2015-03-13 07:22:43 -0600 |
| commit | 70cb75adaf3243478276cebf367c5f47c4725715 (patch) | |
| tree | bede0223b58af2d684eee9ebe2235a0820c0df9c /nuttx/drivers | |
| parent | 8f1f3579e61e3fdbdc7fadfdbedf264c89dc4dca (diff) | |
| download | px4-nuttx-70cb75adaf3243478276cebf367c5f47c4725715.tar.gz px4-nuttx-70cb75adaf3243478276cebf367c5f47c4725715.tar.bz2 px4-nuttx-70cb75adaf3243478276cebf367c5f47c4725715.zip | |
drivers/serial: Report correct number of bytes free in serial buffer with FIONWRITE. From Jussi Kivilinna.
Diffstat (limited to 'nuttx/drivers')
| -rw-r--r-- | nuttx/drivers/serial/serial.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/nuttx/drivers/serial/serial.c b/nuttx/drivers/serial/serial.c index b2719e62a..d9f161b18 100644 --- a/nuttx/drivers/serial/serial.c +++ b/nuttx/drivers/serial/serial.c @@ -877,7 +877,7 @@ static int uart_ioctl(FAR struct file *filep, int cmd, unsigned long arg) } else { - count = dev->xmit.size - (dev->xmit.head - dev->xmit.tail) - 1; + count = dev->xmit.size - (dev->xmit.head - dev->xmit.tail); } irqrestore(state); |