diff options
| author | Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> | 2016-08-18 10:54:19 +0200 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2016-08-18 11:08:33 -0600 |
| commit | 5021bb933ae299ed494da7350303700077de20fc (patch) | |
| tree | 57b4c388156e11399e30e1e85c3419f9fbbf36f2 /Documentation/serial/serial-rs485.txt | |
| parent | 7a9011db32b5a24f29e725220d0ba9e970412f47 (diff) | |
Documentation: rs485: Do not define manually the ioctl
It is not a very good practice to define the IOCTL manually instead of
using the header file.
Fix it on the documentation example.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/serial/serial-rs485.txt')
| -rw-r--r-- | Documentation/serial/serial-rs485.txt | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Documentation/serial/serial-rs485.txt b/Documentation/serial/serial-rs485.txt index 2253b8b45a74..389fcd4759e9 100644 --- a/Documentation/serial/serial-rs485.txt +++ b/Documentation/serial/serial-rs485.txt @@ -45,9 +45,8 @@ #include <linux/serial.h> - /* RS485 ioctls: */ - #define TIOCGRS485 0x542E - #define TIOCSRS485 0x542F + /* Include definition for RS485 ioctls: TIOCGRS485 and TIOCSRS485 */ + #include <sys/ioctl.h> /* Open your specific device (e.g., /dev/mydevice): */ int fd = open ("/dev/mydevice", O_RDWR); |