Documentation/spi/spidev_test.c: constify some variables
Constify two char pointers and a struct in Documentation/spi/spidev_test.c. Acked-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -29,7 +29,7 @@ static void pabort(const char *s)
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abort();
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}
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static char *device = "/dev/spidev1.1";
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static const char *device = "/dev/spidev1.1";
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static uint8_t mode;
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static uint8_t bits = 8;
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static uint32_t speed = 500000;
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@ -69,7 +69,7 @@ static void transfer(int fd)
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puts("");
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}
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void print_usage(char *prog)
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void print_usage(const char *prog)
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{
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printf("Usage: %s [-DsbdlHOLC3]\n", prog);
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puts(" -D --device device to use (default /dev/spidev1.1)\n"
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@ -88,7 +88,7 @@ void print_usage(char *prog)
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void parse_opts(int argc, char *argv[])
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{
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while (1) {
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static struct option lopts[] = {
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static const struct option lopts[] = {
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{ "device", 1, 0, 'D' },
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{ "speed", 1, 0, 's' },
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{ "delay", 1, 0, 'd' },
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