diff options
| -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); |