dmidecode: Add --no-sysfs option to disable use of sysfs

This option forces any SMBIOS information in sysfs to be ignored, resulting
in dmidecode using /dev/mem for SMBIOS access.  This is likely most useful
for debugging.

Contributed by Roy Franz.

1 files changed, 4 insertions, 0 deletions

diff --git a/dmiopt.c b/dmiopt.c
index 1c56a0e..c86e7dd 100644
--- a/dmiopt.c
+++ b/dmiopt.c
@@ -225,6 +225,7 @@ int parse_command_line(int argc, char * const argv[])
 		{ "dump", no_argument, NULL, 'u' },
 		{ "dump-bin", required_argument, NULL, 'B' },
 		{ "from-dump", required_argument, NULL, 'F' },
+		{ "no-sysfs", no_argument, NULL, 'S' },
 		{ "version", no_argument, NULL, 'V' },
 		{ 0, 0, 0, 0 }
 	};
@@ -262,6 +263,9 @@ int parse_command_line(int argc, char * const argv[])
 			case 'u':
 				opt.flags |= FLAG_DUMP;
 				break;
+			case 'S':
+				opt.flags |= FLAG_NO_SYSFS;
+				break;
 			case 'V':
 				opt.flags |= FLAG_VERSION;
 				break;