1 files changed, 110 insertions, 0 deletions
diff --git a/apps/examples/pashello/device.c b/apps/examples/pashello/device.c
new file mode 100644
index 000000000..5f0038ad7
--- /dev/null
+++ b/apps/examples/pashello/device.c
@@ -0,0 +1,110 @@
+/****************************************************************************
+ * examples/pashello/device.c
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Compilation Switches
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <string.h>
+#include <errno.h>
+#include <nuttx/fs.h>
+
+#include "hello.h"
+#include "pashello.h"
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+static ssize_t hello_read(struct file *, char *, size_t);
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const struct file_operations hello_fops =
+{
+  0,             /* open */
+  0,             /* close */
+  hello_read,    /* read */
+  0,             /* write */
+  0,             /* seek */
+  0,             /* ioctl */
+#ifndef CONFIG_DISABLE_POLL
+  0              /* poll */
+#endif
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static ssize_t hello_read(struct file *filep, char *buffer, size_t len)
+{
+  off_t offset  = filep->f_pos;  /* Start read position */
+  ssize_t nread = 0;             /* Bytes read -- assume EOF */
+
+  /* Make sure that the offset is within the .pex file */
+
+  if (offset < hello_pex_len)
+    {
+      /* Make sure the read does not extend beyond the .pex file */
+
+      nread = len;
+      if (nread + offset > hello_pex_len)
+        {
+          nread = hello_pex_len - offset;
+        }
+      memcpy(buffer, &hello_pex[offset], nread);
+      filep->f_pos += nread;
+    }
+  return nread;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+void hello_register(void)
+{
+  (void)register_driver("/dev/hello", &hello_fops, 0444, NULL);
+}