diff --git a/os/io/mac.c b/os/io/mac.c
index 823a1b4a7..e64f0bee0 100644
--- a/os/io/mac.c
+++ b/os/io/mac.c
@@ -27,11 +27,6 @@
 #include <ch.h>
 #include <mac.h>
 
-/**
- * @brief Interface status.
- */
-static enum {ifStopped = 0, ifStarted} state;
-
 /**
  * @brief Transmit descriptors counter semaphore.
  */
@@ -42,12 +37,21 @@ static Semaphore tdsem, rdsem;
  */
 void macInit(void) {
 
-  chSemInit(&tdsem, MAC_TRANSMIT_DESCRIPTORS);
-  chSemInit(&rdsem, 0);
-  state = ifStopped;
   mac_lld_init();
 }
 
+/**
+ * @brief Initialize the standard part of a @p MACDriver structure.
+ *
+ * @param[in] macp pointer to the @p MACDriver object
+ */
+void macObjectInit(MACDriver *macp) {
+
+  chSemInit(&macp->md_tdsem, MAC_TRANSMIT_DESCRIPTORS);
+  chSemInit(&macp->md_rdsem, 0);
+  macp->md_state = ifStopped;
+}
+
 /**
  * @brief MAC address setup.
  *
@@ -61,7 +65,7 @@ void macInit(void) {
  */
 void macSetAddress(MACDriver *macp, uint8_t *p) {
 
-  if (state == ifStopped)
+  if (macp->md_state == ifStopped)
     mac_lld_set_address(macp, p);
 }
 
@@ -74,11 +78,11 @@ void macSetAddress(MACDriver *macp, uint8_t *p) {
 void macStart(MACDriver *macp) {
 
   chSysLock();
-  if (state == ifStarted) {
+  if (macp->md_state == ifStarted) {
     chSysUnlock();
     return;
   }
-  state = ifStarted;
+  macp->md_state = ifStarted;
   chSysUnlock();
   mac_lld_start(macp);
 }
@@ -91,13 +95,13 @@ void macStart(MACDriver *macp) {
 void macStop(MACDriver *macp) {
 
   chSysLock();
-  if (state == ifStopped) {
+  if (macp->md_state == ifStopped) {
     chSysUnlock();
     return;
   }
-  state = ifStopped;
-  chSemResetI(&tdsem, MAC_TRANSMIT_DESCRIPTORS);
-  chSemResetI(&rdsem, 0);
+  macp->md_state = ifStopped;
+  chSemResetI(&macp->md_tdsem, MAC_TRANSMIT_DESCRIPTORS);
+  chSemResetI(&macp->md_rdsem, 0);
   chSchRescheduleS();
   chSysUnlock();
   mac_lld_stop(macp);
@@ -124,7 +128,8 @@ MACTransmitDescriptor *macWaitTransmitDescriptor(MACDriver *macp,
 
   chSysLock();
 
-  if ((state == ifStopped) || (chSemWaitTimeoutS(&tdsem, time) != RDY_OK))
+  if ((macp->md_state == ifStopped) ||
+      (chSemWaitTimeoutS(&tdsem, time) != RDY_OK))
     tdp = NULL;
   else
     tdp = max_lld_get_transmit_descriptor(macp);
@@ -143,7 +148,7 @@ MACTransmitDescriptor *macWaitTransmitDescriptor(MACDriver *macp,
 void macReleaseTransmitDescriptor(MACDriver *macp,
                                   MACTransmitDescriptor *tdp) {
 
-  if (state == ifStarted)
+  if (macp->md_state == ifStarted)
     mac_lld_release_transmit_descriptor(macp, tdp);
 }
 
@@ -169,7 +174,8 @@ MACReceiveDescriptor *macWaitReceiveDescriptor(MACDriver *macp,
 
   chSysLock();
 
-  if ((state == ifStopped) || (chSemWaitTimeoutS(&rdsem, time) != RDY_OK))
+  if ((macp->md_state == ifStopped) ||
+      (chSemWaitTimeoutS(&rdsem, time) != RDY_OK))
     rdp = NULL;
   else
     rdp = max_lld_get_receive_descriptor(macp);
@@ -189,7 +195,7 @@ MACReceiveDescriptor *macWaitReceiveDescriptor(MACDriver *macp,
 void macReleaseReceiveDescriptor(MACDriver *macp,
                                  MACReceiveDescriptor *rdp) {
 
-  if (state == ifStarted)
+  if (macp->md_state == ifStarted)
     mac_lld_release_receive_descriptor(macp, rdp);
 }
 
diff --git a/os/io/mac.h b/os/io/mac.h
index e79f29919..791b434be 100644
--- a/os/io/mac.h
+++ b/os/io/mac.h
@@ -49,6 +49,7 @@
 extern "C" {
 #endif
   void macInit(void);
+  void macObjectInit(MACDriver *macp);
   void macSetAddress(MACDriver *macp, uint8_t *p);
   void macStart(MACDriver *macp);
   void macStop(MACDriver *macp);
diff --git a/os/io/phy.c b/os/io/phy.c
index d03c5b1d3..7c61019dd 100644
--- a/os/io/phy.c
+++ b/os/io/phy.c
@@ -25,6 +25,85 @@
  */
 
 #include <ch.h>
+#include <mac.h>
 #include <phy.h>
 
+/**
+ * @brief Interface status.
+ */
+static enum {ifStopped = 0, ifStarted} state;
+
+/**
+ * @brief PHY Driver initialization.
+ */
+void phyInit(void) {
+
+  state = ifStopped;
+}
+
+/**
+ * Initializes a PHY device.
+ *
+ * @param[in] macp pointer to the @p MACDriver object
+ */
+void phyReset(MACDriver *macp) {
+
+}
+
+/**
+ * @brief Puts the PHY device in active mode.
+ *
+ * @param[in] macp pointer to the @p MACDriver object
+ */
+void phyStart(MACDriver *macp) {
+
+  chSysLock();
+  if (state == ifStarted) {
+    chSysUnlock();
+    return;
+  }
+  state = ifStarted;
+  chSysUnlock();
+  phy_lld_start(macp);
+}
+
+/**
+ * @brief Puts the PHY device in a low power mode.
+ *
+ * @param[in] macp pointer to the @p MACDriver object
+ */
+void phyStop(MACDriver *macp) {
+
+  chSysLock();
+  if (state == ifStopped) {
+    chSysUnlock();
+    return;
+  }
+  state = ifStopped;
+  chSysUnlock();
+  phy_lld_stop(macp);
+}
+
+/**
+ * @brief Reads a PHY register.
+ *
+ * @param[in] macp pointer to the @p MACDriver object
+ * @param addr the register address
+ * @return The register value.
+ */
+phyreg_t phyGet(MACDriver *macp, phyaddr_t addr) {
+
+}
+
+/**
+ * @brief Writes a PHY register.
+ *
+ * @param[in] macp pointer to the @p MACDriver object
+ * @param addr the register address
+ * @param value the new register value
+ */
+void phyPut(MACDriver *macp, phyaddr_t addr, phyreg_t value) {
+
+}
+
 /** @} */
diff --git a/os/io/phy.h b/os/io/phy.h
index 7bf09b8c3..ffafa4025 100644
--- a/os/io/phy.h
+++ b/os/io/phy.h
@@ -27,12 +27,28 @@
 #ifndef _PHY_H_
 #define _PHY_H_
 
+#include "mac_lld.h"
 #include "phy_lld.h"
 
+/**
+ * @brief Type of a PHY register value.
+ */
+typedef uint16_t phyreg_t;
+
+/**
+ * @brief Type of a PHY register address.
+ */
+typedef uint8_t phyaddr_t;
+
 #ifdef __cplusplus
 extern "C" {
 #endif
   void phyInit(void);
+  void phyReset(MACDriver *macp);
+  void phyStart(MACDriver *macp);
+  void phyStop(MACDriver *macp);
+  phyreg_t phyGet(MACDriver *macp, phyaddr_t addr);
+  void phyPut(MACDriver *macp, phyaddr_t addr, phyreg_t value);
 #ifdef __cplusplus
 }
 #endif
diff --git a/os/io/templates/mac_lld.h b/os/io/templates/mac_lld.h
index 01889aa12..0ded4b690 100644
--- a/os/io/templates/mac_lld.h
+++ b/os/io/templates/mac_lld.h
@@ -46,7 +46,10 @@
  * @brief Structure representing a MAC driver.
  */
 typedef struct {
-
+  enum {ifStopped = 0,
+        ifStarted}      md_state;       /**< @brief Interface status.*/
+  Semaphore             md_tdsem;       /**< Transmit semaphore.*/
+  Semaphore             md_rdsem;       /**< Receive semaphore.*/
 } MACDriver;
 
 /**