BTT: Added user guide

[blktrace.git] / btt / args.c

diff --git a/btt/args.c b/btt/args.c
index a7cf01e2e052413874e68a092720e58b3bf82b6c..7fa087e6902edc60dd04a8d5218636802936e52f 100644 (file)
--- a/btt/args.c
+++ b/btt/args.c
@@ -143,7 +143,8 @@ static struct option l_opts[] = {
 };
 
 static char usage_str[] = \
-       "\n[ -d <seconds>     | --range-delta=<seconds> ]\n" \
+       "\n[ -A               | --all-data ]\n" \
+       "[ -d <seconds>     | --range-delta=<seconds> ]\n" \
        "[ -D <dev;...>     | --devices=<dev;...> ]\n" \
        "[ -e <exe,...>     | --exes=<exe,...>  ]\n" \
        "[ -h               | --help ]\n" \