Signed-off-by: Adrian Remonda <adrianremo...@gmail.com>
---
Documentation/spi/spidev_test.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c
index 533050ced9f1..a247b3dbf65a 100644
--- a/Documentation/spi/spidev_test.c
+++ b/Documentation/spi/spidev_test.c
@@ -35,6 +35,7 @@ static uint32_t mode;
static uint8_t bits = 8;
static uint32_t speed = 500000;
static uint16_t delay;
+static int verbose;
static void hexDump(const void *src, size_t length, size_t bLine, char *prefix)
{
@@ -104,7 +105,9 @@ static void transfer(int fd)
if (ret < 1)
pabort("can't send spi message");
- hexDump(rx, ARRAY_SIZE(tx), 32, "RX");
+ if (verbose)
+ hexDump(tx, ARRAY_SIZE(tx), 32, "TX");
+ hexDump(rx, ARRAY_SIZE(rx), 32, "RX");
}
static void print_usage(const char *prog)
@@ -120,6 +123,7 @@ static void print_usage(const char *prog)
" -L --lsb least significant bit first\n"
" -C --cs-high chip select active high\n"
" -3 --3wire SI/SO signals shared\n"
+ " -v --verbose Verbose (show tx buffer)\n"
" -N --no-cs no chip select\n"
" -R --ready slave pulls low to pause\n"
" -2 --dual dual transfer\n"
@@ -144,12 +148,13 @@ static void parse_opts(int argc, char *argv[])
{ "no-cs", 0, 0, 'N' },
{ "ready", 0, 0, 'R' },
{ "dual", 0, 0, '2' },
+ { "verbose", 0, 0, 'v' },
{ "quad", 0, 0, '4' },
{ NULL, 0, 0, 0 },
};
int c;
- c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR24", lopts, NULL);
+ c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR24:v", lopts,
NULL);
if (c == -1)
break;
@@ -188,6 +193,9 @@ static void parse_opts(int argc, char *argv[])
case 'N':
mode |= SPI_NO_CS;
break;
+ case 'v':
+ verbose = 1;
+ break;
case 'R':
mode |= SPI_READY;
break;
--
1.7.10.4
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