diff options
| author | Shuah Khan | 2016-09-16 17:40:40 -0600 |
|---|---|---|
| committer | Shuah Khan | 2016-09-23 11:52:14 -0600 |
| commit | 071bf69a0220253a44acb8b2a27f7a262b9a46bf (patch) | |
| tree | 866502794134b58f493a6257d8ff49cd41353237 /samples/watchdog | |
| parent | 155fe001c6cd840c1cef3a8c42a8f14296a47c57 (diff) | |
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/.gitignore | 1 | ||||
| -rw-r--r-- | samples/watchdog/Makefile | 8 | ||||
| -rw-r--r-- | samples/watchdog/watchdog-simple.c | 24 |
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; +} |