Commit 5021bb93 authored by Ricardo Ribalda Delgado's avatar Ricardo Ribalda Delgado Committed by Jonathan Corbet

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: default avatarRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 7a9011db
...@@ -45,9 +45,8 @@ ...@@ -45,9 +45,8 @@
#include <linux/serial.h> #include <linux/serial.h>
/* RS485 ioctls: */ /* Include definition for RS485 ioctls: TIOCGRS485 and TIOCSRS485 */
#define TIOCGRS485 0x542E #include <sys/ioctl.h>
#define TIOCSRS485 0x542F
/* Open your specific device (e.g., /dev/mydevice): */ /* Open your specific device (e.g., /dev/mydevice): */
int fd = open ("/dev/mydevice", O_RDWR); int fd = open ("/dev/mydevice", O_RDWR);
......
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