diff --git a/include/device.h b/include/device.h
index 968bb0020b8..33be2b79b7e 100644
--- a/include/device.h
+++ b/include/device.h
@@ -67,7 +67,7 @@ extern "C" {
  *
  * @param init_fn Address to the init function of the driver.
  *
- * @param data Pointer to the device's configuration data.
+ * @param data Pointer to the device's private data.
  *
  * @param cfg_info The address to the structure containing the
  * configuration information for this instance of the driver.
diff --git a/include/net/ethernet.h b/include/net/ethernet.h
index 843ebd14ea0..cca2179f7db 100644
--- a/include/net/ethernet.h
+++ b/include/net/ethernet.h
@@ -618,7 +618,7 @@ static inline bool net_eth_get_vlan_status(struct net_if *iface)
  * @param init_fn Address to the init function of the driver.
  * @param pm_control_fn Pointer to device_pm_control function.
  * Can be empty function (device_pm_control_nop) if not implemented.
- * @param data Pointer to the device's configuration data.
+ * @param data Pointer to the device's private data.
  * @param cfg_info The address to the structure containing the
  * configuration information for this instance of the driver.
  * @param prio The initialization level at which configuration occurs.
diff --git a/include/net/net_if.h b/include/net/net_if.h
index c879f604829..060c33047f4 100644
--- a/include/net/net_if.h
+++ b/include/net/net_if.h
@@ -2232,7 +2232,7 @@ struct net_if_api {
  * @param init_fn Address to the init function of the driver.
  * @param pm_control_fn Pointer to device_pm_control function.
  * Can be empty function (device_pm_control_nop) if not implemented.
- * @param data Pointer to the device's configuration data.
+ * @param data Pointer to the device's private data.
  * @param cfg_info The address to the structure containing the
  * configuration information for this instance of the driver.
  * @param prio The initialization level at which configuration occurs.
@@ -2265,7 +2265,7 @@ struct net_if_api {
  * @param init_fn Address to the init function of the driver.
  * @param pm_control_fn Pointer to device_pm_control function.
  * Can be empty function (device_pm_control_nop) if not implemented.
- * @param data Pointer to the device's configuration data.
+ * @param data Pointer to the device's private data.
  * @param cfg_info The address to the structure containing the
  * configuration information for this instance of the driver.
  * @param prio The initialization level at which configuration occurs.
@@ -2296,7 +2296,7 @@ struct net_if_api {
  * @param init_fn Address to the init function of the driver.
  * @param pm_control_fn Pointer to device_pm_control function.
  * Can be empty function (device_pm_control_nop) if not implemented.
- * @param data Pointer to the device's configuration data.
+ * @param data Pointer to the device's private data.
  * @param cfg_info The address to the structure containing the
  * configuration information for this instance of the driver.
  * @param prio The initialization level at which configuration occurs.