diff --git a/lib/chips.c b/lib/chips.c
index 33b2a317..b245ef86 100644
--- a/lib/chips.c
+++ b/lib/chips.c
@@ -741,7 +741,7 @@ static sensors_chip_feature w83781d_features[] =
     { SENSORS_W83781D_VID, "vid", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
                          SENSORS_MODE_R, W83781D_SYSCTL_VID, VALUE(1), 3 },
     { SENSORS_W83781D_VRM, "vrm", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
-                         SENSORS_MODE_R, W83781D_SYSCTL_VRM, VALUE(1), 1 },
+                         SENSORS_MODE_RW, W83781D_SYSCTL_VRM, VALUE(1), 1 },
     { SENSORS_W83781D_FAN1_DIV, "fan1_div", SENSORS_W83781D_FAN1, 
                          SENSORS_NO_MAPPING, SENSORS_MODE_RW, 
                          W83781D_SYSCTL_FAN_DIV, VALUE(1), 0 },
@@ -879,7 +879,7 @@ static sensors_chip_feature as99127f_features[] =
     { SENSORS_W83782D_VID, "vid", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
                          SENSORS_MODE_R, W83781D_SYSCTL_VID, VALUE(1), 3 },
     { SENSORS_W83782D_VRM, "vrm", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
-                         SENSORS_MODE_R, W83781D_SYSCTL_VRM, VALUE(1), 1 },
+                         SENSORS_MODE_RW, W83781D_SYSCTL_VRM, VALUE(1), 1 },
     { SENSORS_W83782D_FAN1_DIV, "fan1_div", SENSORS_W83782D_FAN1, 
                          SENSORS_NO_MAPPING, SENSORS_MODE_RW, 
                          W83781D_SYSCTL_FAN_DIV, VALUE(1), 0 },
@@ -1022,7 +1022,7 @@ static sensors_chip_feature w83782d_features[] =
     { SENSORS_W83782D_VID, "vid", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
                          SENSORS_MODE_R, W83781D_SYSCTL_VID, VALUE(1), 3 },
     { SENSORS_W83782D_VRM, "vrm", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
-                         SENSORS_MODE_R, W83781D_SYSCTL_VRM, VALUE(1), 1 },
+                         SENSORS_MODE_RW, W83781D_SYSCTL_VRM, VALUE(1), 1 },
     { SENSORS_W83782D_FAN1_DIV, "fan1_div", SENSORS_W83782D_FAN1, 
                          SENSORS_NO_MAPPING, SENSORS_MODE_RW, 
                          W83781D_SYSCTL_FAN_DIV, VALUE(1), 0 },
@@ -1141,7 +1141,7 @@ static sensors_chip_feature w83783s_features[] =
     { SENSORS_W83783S_VID, "vid", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
                          SENSORS_MODE_R, W83781D_SYSCTL_VID, VALUE(1), 3 },
     { SENSORS_W83783S_VRM, "vrm", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
-                         SENSORS_MODE_R, W83781D_SYSCTL_VRM, VALUE(1), 1 },
+                         SENSORS_MODE_RW, W83781D_SYSCTL_VRM, VALUE(1), 1 },
     { SENSORS_W83783S_FAN1_DIV, "fan1_div", SENSORS_W83783S_FAN1, 
                          SENSORS_NO_MAPPING, SENSORS_MODE_RW, 
                          W83781D_SYSCTL_FAN_DIV, VALUE(1), 0 },
@@ -1887,7 +1887,7 @@ static sensors_chip_feature adm1025_features[] =
     { SENSORS_ADM1025_VID, "vid", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
                          SENSORS_MODE_R, ADM1025_SYSCTL_VID, VALUE(1), 3 },
     { SENSORS_ADM1025_VRM, "vrm", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
-                         SENSORS_MODE_R, ADM1025_SYSCTL_VRM, VALUE(1), 1 },
+                         SENSORS_MODE_RW, ADM1025_SYSCTL_VRM, VALUE(1), 1 },
     { SENSORS_ADM1025_ALARMS, "alarms", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING, 
                          SENSORS_MODE_R, ADM1025_SYSCTL_ALARMS, VALUE(1), 0 },
     { 0 }
@@ -2764,7 +2764,7 @@ static sensors_chip_feature vt1211_features[] =
     { SENSORS_VT1211_VID, "vid", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING, 
                            SENSORS_MODE_R, VT1211_SYSCTL_VID, VALUE(1), 3 },
     { SENSORS_VT1211_VRM, "vrm", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING, 
-                           SENSORS_MODE_R, VT1211_SYSCTL_VRM, VALUE(1), 1 },
+                           SENSORS_MODE_RW, VT1211_SYSCTL_VRM, VALUE(1), 1 },
     { SENSORS_VT1211_UCH, "config", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING, 
                            SENSORS_MODE_R, VT1211_SYSCTL_UCH, VALUE(1), 0 },
     { 0 }