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-rw-r--r--Documentation/spi/spidev_test.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c
index 16feda901469..efd7385e907f 100644
--- a/Documentation/spi/spidev_test.c
+++ b/Documentation/spi/spidev_test.c
@@ -81,7 +81,9 @@ static void print_usage(const char *prog)
" -O --cpol clock polarity\n"
" -L --lsb least significant bit first\n"
" -C --cs-high chip select active high\n"
- " -3 --3wire SI/SO signals shared\n");
+ " -3 --3wire SI/SO signals shared\n"
+ " -N --no-cs no chip select\n"
+ " -R --ready slave pulls low to pause\n");
exit(1);
}