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authorShuah Khan <shuahkh@osg.samsung.com>2016-09-16 17:40:40 -0600
committerShuah Khan <shuahkh@osg.samsung.com>2016-09-23 11:52:14 -0600
commit071bf69a0220253a44acb8b2a27f7a262b9a46bf (patch)
tree866502794134b58f493a6257d8ff49cd41353237 /samples/watchdog
parent155fe001c6cd840c1cef3a8c42a8f14296a47c57 (diff)
downloadlinux-stericsson-071bf69a0220253a44acb8b2a27f7a262b9a46bf.tar.gz
samples: move watchdog example code from Documentation
Move watchdog examples to samples and remove it from Documentation Makefile. Create a new Makefile to build watchdog. It can be built from top level directory or from watchdog directory: Run make -C samples/watchdog or cd samples/watchdog; make Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Diffstat (limited to 'samples/watchdog')
-rw-r--r--samples/watchdog/.gitignore1
-rw-r--r--samples/watchdog/Makefile8
-rw-r--r--samples/watchdog/watchdog-simple.c24
3 files changed, 33 insertions, 0 deletions
diff --git a/samples/watchdog/.gitignore b/samples/watchdog/.gitignore
new file mode 100644
index 000000000000..ff0ebb540333
--- /dev/null
+++ b/samples/watchdog/.gitignore
@@ -0,0 +1 @@
+watchdog-simple
diff --git a/samples/watchdog/Makefile b/samples/watchdog/Makefile
new file mode 100644
index 000000000000..9b53d89b1ccf
--- /dev/null
+++ b/samples/watchdog/Makefile
@@ -0,0 +1,8 @@
+CC := $(CROSS_COMPILE)gcc
+PROGS := watchdog-simple
+
+all: $(PROGS)
+
+clean:
+ rm -fr $(PROGS)
+
diff --git a/samples/watchdog/watchdog-simple.c b/samples/watchdog/watchdog-simple.c
new file mode 100644
index 000000000000..ba45803a2216
--- /dev/null
+++ b/samples/watchdog/watchdog-simple.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+int main(void)
+{
+ int fd = open("/dev/watchdog", O_WRONLY);
+ int ret = 0;
+ if (fd == -1) {
+ perror("watchdog");
+ exit(EXIT_FAILURE);
+ }
+ while (1) {
+ ret = write(fd, "\0", 1);
+ if (ret != 1) {
+ ret = -1;
+ break;
+ }
+ sleep(10);
+ }
+ close(fd);
+ return ret;
+}