diff --git a/platform/drivers/NVM/nvmem_GDx.c b/platform/drivers/NVM/nvmem_GDx.c
index ba826108..360369da 100644
--- a/platform/drivers/NVM/nvmem_GDx.c
+++ b/platform/drivers/NVM/nvmem_GDx.c
@@ -237,3 +237,13 @@ int nvm_readChannelData(channel_t *channel, uint16_t pos)
 {
     return -1;
 }
+
+int nvm_readZoneData(zone_t *zone, uint16_t pos)
+{
+    return -1;
+}
+
+int nvm_readContactData(contact_t *contact, uint16_t pos)
+{
+    return -1;
+}
diff --git a/platform/drivers/NVM/nvmem_MD3x0.c b/platform/drivers/NVM/nvmem_MD3x0.c
index c0439a21..69071e07 100644
--- a/platform/drivers/NVM/nvmem_MD3x0.c
+++ b/platform/drivers/NVM/nvmem_MD3x0.c
@@ -268,3 +268,14 @@ int nvm_readChannelData(channel_t *channel, uint16_t pos)
 
     return 0;
 }
+
+int nvm_readZoneData(zone_t *zone, uint16_t pos)
+{
+    return -1;
+}
+
+int nvm_readContactData(contact_t *contact, uint16_t pos)
+{
+    return -1;
+}
+
diff --git a/platform/drivers/NVM/nvmem_linux.c b/platform/drivers/NVM/nvmem_linux.c
index 8e96e71c..c42a151c 100644
--- a/platform/drivers/NVM/nvmem_linux.c
+++ b/platform/drivers/NVM/nvmem_linux.c
@@ -45,3 +45,14 @@ int nvm_readChannelData(channel_t *channel, uint16_t pos)
 
     return 0;
 }
+
+int nvm_readZoneData(zone_t *zone, uint16_t pos)
+{
+    return -1;
+}
+
+int nvm_readContactData(contact_t *contact, uint16_t pos)
+{
+    return -1;
+}
+