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| author | Adrian Remonda <adrianremonda@gmail.com> | 2015-03-10 16:12:31 -0400 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-03-10 20:51:04 +0000 |
| commit | 31a5c5a72b90e074bd2377ada2bdfd506801ed72 (patch) | |
| tree | ca0cd55dcab42f033edd254d186d21b04af0c4fd /Documentation/spi | |
| parent | b78ce7ed54093e5e63d4f5d7cbdc3f7d42ebbd5c (diff) | |
| download | linux-31a5c5a72b90e074bd2377ada2bdfd506801ed72.tar.gz linux-31a5c5a72b90e074bd2377ada2bdfd506801ed72.tar.bz2 linux-31a5c5a72b90e074bd2377ada2bdfd506801ed72.zip | |
spi: spidev_test: Added verbose output
Signed-off-by: Adrian Remonda <adrianremonda@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/spi')
| -rw-r--r-- | Documentation/spi/spidev_test.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c index 9cb09184a3d6..4b6a3803638b 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 hex_dump(const void *src, size_t length, size_t line_size, char *prefix) { @@ -104,6 +105,8 @@ static void transfer(int fd) if (ret < 1) pabort("can't send spi message"); + if (verbose) + hex_dump(tx, ARRAY_SIZE(tx), 32, "TX"); hex_dump(rx, ARRAY_SIZE(rx), 32, "RX"); } @@ -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; |