aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/spi
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/spi')
-rw-r--r--Documentation/spi/spidev_test.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c
index 218e862..cf0e3ce0 100644
--- a/Documentation/spi/spidev_test.c
+++ b/Documentation/spi/spidev_test.c
@@ -29,7 +29,7 @@ static void pabort(const char *s)
abort();
}
-static char *device = "/dev/spidev1.1";
+static const char *device = "/dev/spidev1.1";
static uint8_t mode;
static uint8_t bits = 8;
static uint32_t speed = 500000;
@@ -69,7 +69,7 @@ static void transfer(int fd)
puts("");
}
-void print_usage(char *prog)
+void print_usage(const char *prog)
{
printf("Usage: %s [-DsbdlHOLC3]\n", prog);
puts(" -D --device device to use (default /dev/spidev1.1)\n"
@@ -88,7 +88,7 @@ void print_usage(char *prog)
void parse_opts(int argc, char *argv[])
{
while (1) {
- static struct option lopts[] = {
+ static const struct option lopts[] = {
{ "device", 1, 0, 'D' },
{ "speed", 1, 0, 's' },
{ "delay", 1, 0, 'd' },