Add support for temperature offset files, which are part of the

standard sysfs interface. I don't think it makes much sense to
display the offset values as part of the output of "sensors" (it
would even probably confuse people) but having support for these
in libsensors makes it possible to adjust the offsets in
sensors.conf, which is convenient.

This closes ticket #2248.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/branches/lm-sensors-3.0.0@4769 7894878c-1315-0410-8ee3-d5d059ff63e0

lib/access.c

@@ -521,6 +521,7 @@ static const struct feature_subtype_match temp_matches[] = {
 	{ "crit_alarm", SENSORS_FEATURE_TEMP_CRIT_ALARM },
 	{ "fault", SENSORS_FEATURE_TEMP_FAULT },
 	{ "type", SENSORS_FEATURE_TEMP_TYPE },
+	{ "offset", SENSORS_FEATURE_TEMP_OFFSET },
 	{ NULL, 0 }
 };
 

lib/sensors.h

@@ -151,6 +151,7 @@ typedef enum sensors_feature_type {
 	SENSORS_FEATURE_TEMP_CRIT_ALARM,
 	SENSORS_FEATURE_TEMP_FAULT,
 	SENSORS_FEATURE_TEMP_TYPE,
+	SENSORS_FEATURE_TEMP_OFFSET,
 
 	SENSORS_FEATURE_VID = 0x1000,
 

lib/sysfs.c

@@ -1,6 +1,7 @@
 /*
     sysfs.c - Part of libsensors, a library for reading Linux sensor data
     Copyright (c) 2005 Mark M. Hoffman <mhoffman@lightlink.com>
+    Copyright (C) 2007 Jean Delvare <khali@linux-fr.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -37,7 +38,7 @@
 char sensors_sysfs_mount[NAME_MAX];
 
 #define MAX_SENSORS_PER_TYPE	20
-#define MAX_SUB_FEATURES	6
+#define MAX_SUB_FEATURES	7
 /* Room for all 3 types (in, fan, temp) with all their subfeatures + VID
    + misc features */
 #define ALL_POSSIBLE_FEATURES	(MAX_SENSORS_PER_TYPE * MAX_SUB_FEATURES * 6 \
@@ -56,6 +57,7 @@ int get_type_scaling(int type)
 
 	switch (type) {
 	case SENSORS_FEATURE_VID:
+	case SENSORS_FEATURE_TEMP_OFFSET:
 		return 1000;
 	default:
 		return 1;