1 files changed, 122 insertions, 0 deletions
diff --git a/nuttx/lib/termios/lib_tcsetattr.c b/nuttx/lib/termios/lib_tcsetattr.c
new file mode 100644
index 000000000..791b519c8
--- /dev/null
+++ b/nuttx/lib/termios/lib_tcsetattr.c
@@ -0,0 +1,122 @@
+/****************************************************************************
+ * lib/termios/lib_tcsetattr.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/ioctl.h>
+
+#include <termios.h>
+#include <errno.h>
+
+#include <nuttx/serial/tioctl.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: tcsetattr
+ *
+ * Descripton:
+ *   The tcsetattr() function sets the parameters associated with the
+ *   terminal referred to by the open file descriptor 'fd' from the termios
+ *   structure referenced by 'termiop' as follows:
+ *
+ *   If 'options' is TCSANOW, the change will occur immediately.
+ *
+ *   If 'options' is TCSADRAIN, the change will occur after all output
+ *   written to 'fd' is transmitted. This function should be used when changing
+ *   parameters that affect output.
+ *
+ *   If 'options' is TCSAFLUSH, the change will occur after all
+ *   output written to 'fd' is transmitted, and all input so far received but
+ *   not read will be discarded before the change is made.
+ *
+ *   The tcsetattr() function will return successfully if it was able to
+ *   perform any of the requested actions, even if some of the requested
+ *   actions could not be performed. It will set all the attributes that
+ *   implementation supports as requested and leave all the attributes not
+ *   supported by the implementation unchanged. If no part of the request
+ *   can be honoured, it will return -1 and set errno to EINVAL.
+ *
+ *   The effect of tcsetattr() is undefined if the value of the termios
+ *   structure pointed to by 'termiop' was not derived from the result of
+ *   a call to tcgetattr() on 'fd'; an application should modify only fields
+ *   and flags defined by this specification between the call to tcgetattr()
+ *   and tcsetattr(), leaving all other fields and flags unmodified.
+ *
+ * Returned Value:
+ *
+ *   Upon successful completion, 0 is returned. Otherwise, -1 is returned
+ *   and errno is set to indicate the error.  The following errors may be
+ *   reported:
+ *
+ *   - EBADF: The 'fd' argument is not a valid file descriptor. 
+ *   - EINTR:  A signal interrupted tcsetattr(). 
+ *   - EINVAL: The 'options' argument is not a supported value, or
+ *     an attempt was made to change an attribute represented in the
+ *     termios structure to an unsupported value. 
+ *   - ENOTTY: The file associated with 'fd' is not a terminal. 
+ *
+ ****************************************************************************/
+
+int tcsetattr(int fd, int options, FAR const struct termios *termiosp)
+{
+  if (options == TCSANOW)
+    {
+      return ioctl(fd, TCSETS, (unsigned long)termiosp);
+    }
+  return -ENOSYS;
+}