implement help message

[librfid] / utils / mifare-tool.c

diff --git a/utils/mifare-tool.c b/utils/mifare-tool.c
index f9a6a49..4062eaa 100644 (file)
--- a/utils/mifare-tool.c
+++ b/utils/mifare-tool.c
@@ -43,6 +43,11 @@ static char *program_name;
 
 static void help(void)
 {
+       printf( " -h    --help          Print this help message\n"
+               " -r    --read          Read a mifare sector\n"
+               " -l    --loop-read     Loop reading a mifare sector\n"
+               " -w    --write         Write a mifare sector\n"
+               " -k    --key           Specify mifare access key (in hex tuples)\n");
 }
 
 static struct option mifare_opts[] = {