X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/2e16354693c5b0b2ea03a7824e6f9e527c0a66e9..refs/pull/461/head:/client/reveng/cli.c

diff --git a/client/reveng/cli.c b/client/reveng/cli.c
index 538fab19..224eedd6 100644
--- a/client/reveng/cli.c
+++ b/client/reveng/cli.c
@@ -605,7 +605,19 @@ usage(void) {
 			"\t-c calculate CRCs\t\t-d dump algorithm parameters\n"
 			"\t-D list preset algorithms\t-e echo (and reformat) input\n"
 			"\t-s search for algorithm\t\t-v calculate reversed CRCs\n"
-			"\t-h | -u | -? show this help\n"
+			"\t-g search for alg given hex+crc\t-h | -u | -? show this help\n"
+			"Common Use Examples:\n"
+			"\t   reveng -g 01020304e3\n"
+			"\t      Searches for a known/common crc preset that computes the crc\n"
+			"\t      on the end of the given hex string\n"
+			"\t   reveng -w 8 -s 01020304e3 010204039d\n"
+			"\t      Searches for any possible 8 bit width crc calc that computes\n"
+			"\t      the crc on the end of the given hex string(s)\n"
+			"\t   reveng -m CRC-8 -c 01020304\n"
+			"\t      Calculates the crc-8 of the given hex string\n"
+			"\t   reveng -D\n"
+			"\t      Outputs a list of all known/common crc models with their\n"
+			"\t      preset values\n"
 			"\n"
 			"Copyright (C) 2010, 2011, 2012, 2013, 2014, 2015  Gregory Cook\n"
 			"This is free software; see the source for copying conditions.  There is NO\n"