3 files changed, 45 insertions, 7 deletions
diff --git a/apps/examples/touchscreen/Kconfig b/apps/examples/touchscreen/Kconfig
index e8d8728d8..18ece4923 100644
--- a/apps/examples/touchscreen/Kconfig
+++ b/apps/examples/touchscreen/Kconfig
@@ -10,4 +10,39 @@ config EXAMPLES_TOUCHSCREEN
 		Enable the touchscreen example
 
 if EXAMPLES_TOUCHSCREEN
+
+config EXAMPLES_TOUCHSCREEN_BUILTIN
+	bool "NSH built-in application"
+	default y
+	depends on NSH_BUILTIN_APPS
+	---help---
+		Build the touchscreen test as an NSH built-in function.  Default:
+		Built as a standalone problem unless NSH_BUILTIN_APPS is defined.
+		Then the default is to build as an NSH built-in application.
+
+config EXAMPLES_TOUCHSCREEN_MINOR
+	int "Touchscreen minor device number"
+	default 0
+	---help---
+		The minor device number.  Minor=N corresponds to touchscreen device
+		/dev/input0.  Note this value must with EXAMPLES_TOUCHSCREEN_DEVPATH.
+		Default 0.
+
+config EXAMPLES_TOUCHSCREEN_DEVPATH
+	string "Touchscreen device path"
+	default "/dev/input0"
+	---help---
+		The path to the touchscreen device.  This must be consistent with
+		EXAMPLES_TOUCHSCREEN_MINOR. Default: "/dev/input0"
+
+config EXAMPLES_TOUCHSCREEN_NSAMPLES
+	int "Number of samples"
+	default 0
+	depends on !EXAMPLES_TOUCHSCREEN_BUILTIN
+	---help---
+		If EXAMPLES_TOUCHSCREEN_BUILTIN is defined, then the number of
+		samples is provided on the command line and this value is ignored.
+		Otherwise, this number of samples is collected and the program
+		terminates.  Default:  Zero (Samples are collected indefinitely).
+
 endif
diff --git a/apps/examples/touchscreen/tc.h b/apps/examples/touchscreen/tc.h
index dddff11c3..055353ddd 100644
--- a/apps/examples/touchscreen/tc.h
+++ b/apps/examples/touchscreen/tc.h
@@ -42,7 +42,6 @@
 
 #include <nuttx/config.h>
 
-
 /****************************************************************************
  * Definitions
  ****************************************************************************/
@@ -50,7 +49,7 @@
 /* CONFIG_EXAMPLES_TOUCHSCREEN_BUILTIN - Build the touchscreen test as
  *   an NSH built-in function.  Default: Built as a standalone problem
  * CONFIG_EXAMPLES_TOUCHSCREEN_MINOR - The minor device number.  Minor=N
- *   correspnds to touchscreen device /dev/input0.  Note this value must
+ *   corresponds to touchscreen device /dev/input0.  Note this value must
  *   with CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH.  Default 0.
  * CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH - The path to the touchscreen
  *   device.  This must be consistent with CONFIG_EXAMPLES_TOUCHSCREEN_MINOR.
@@ -58,8 +57,8 @@
  * CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES - If CONFIG_EXAMPLES_TOUCHSCREEN_BUILTIN
  *   is defined, then the number of samples is provided on the command line
  *   and this value is ignored.  Otherwise, this number of samples is
- *   collected and the program terminates.  Default:  Samples are collected
- *   indefinitely.
+ *   collected and the program terminates.  Default:  Zero (Samples are collected
+ *   indefinitely).
  */
 
 #ifndef CONFIG_INPUT
@@ -78,6 +77,10 @@
 #  define CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH "/dev/input0"
 #endif
 
+#ifndef CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES
+#  define CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES 0
+#endif
+
 /* Debug ********************************************************************/
 
 #ifdef CONFIG_CPP_HAVE_VARARGS
diff --git a/apps/examples/touchscreen/tc_main.c b/apps/examples/touchscreen/tc_main.c
index 79b6b65a3..d49902612 100644
--- a/apps/examples/touchscreen/tc_main.c
+++ b/apps/examples/touchscreen/tc_main.c
@@ -88,7 +88,7 @@ int tc_main(int argc, char *argv[])
 {
   struct touch_sample_s sample;
   ssize_t nbytes;
-#if defined(CONFIG_EXAMPLES_TOUCHSCREEN_BUILTIN) || defined(CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES)
+#if defined(CONFIG_EXAMPLES_TOUCHSCREEN_BUILTIN) || CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES > 0
   long nsamples;
 #endif
   int fd;
@@ -106,7 +106,7 @@ int tc_main(int argc, char *argv[])
       nsamples = strtol(argv[1], NULL, 10);
     }
   message("tc_main: nsamples: %d\n", nsamples);
-#elif defined(CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES)
+#elif CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES > 0
   message("tc_main: nsamples: %d\n", CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES);
 #endif
 
@@ -141,7 +141,7 @@ int tc_main(int argc, char *argv[])
 
 #if defined(CONFIG_EXAMPLES_TOUCHSCREEN_BUILTIN)
   for (; nsamples > 0; nsamples--)
-#elif defined(CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES)
+#elif CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES > 0
   for (nsamples = 0; nsamples < CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES; nsamples++)
 #else
   for (;;)