diff --git a/configs/ea3131/src/lpc31_usbhost.c b/configs/ea3131/src/lpc31_usbhost.c
index a1b86a759f..fe16aa1637 100644
--- a/configs/ea3131/src/lpc31_usbhost.c
+++ b/configs/ea3131/src/lpc31_usbhost.c
@@ -1,7 +1,7 @@
 /************************************************************************************
  * configs/ea3131/src/lpc31_usbhost.c
  *
- *   Copyright (C) 2013, 2015-2016 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013, 2015-2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -82,12 +82,6 @@
 
 static struct usbhost_connection_s *g_ehciconn;
 
-/* Overcurrent interrupt handler */
-
-#if 0 /* Not yet implemented */
-static xcpt_t g_ochandler;
-#endif
-
 /************************************************************************************
  * Private Functions
  ************************************************************************************/
@@ -292,16 +286,16 @@ void lpc31_usbhost_vbusdrive(int rhport, bool enable)
  *
  * Input parameter:
  *   handler - New overcurrent interrupt handler
+ *   arg     - The argument that will accompany the interrupt
  *
  * Returned value:
- *   Old overcurrent interrupt handler
+ *   Zero (OK) returned on success; a negated errno value is returned on failure.
  *
  ************************************************************************************/
 
 #if 0 /* Not ready yet */
-xcpt_t lpc31_setup_overcurrent(xcpt_t handler)
+int lpc31_setup_overcurrent(xcpt_t handler, void *arg)
 {
-  xcpt_t oldhandler;
   irqstate_t flags;
 
   /* Disable interrupts until we are done.  This guarantees that the
@@ -310,18 +304,11 @@ xcpt_t lpc31_setup_overcurrent(xcpt_t handler)
 
   flags = enter_critical_section();
 
-  /* Get the old button interrupt handler and save the new one */
-
-  oldhandler  = g_ochandler;
-  g_ochandler = handler;
-
   /* Configure the interrupt */
 #warning Missing logic
 
-  /* Return the old button handler (so that it can be restored) */
-
   leave_critical_section(flags);
-  return oldhandler;
+  return OK;
 }
 #endif /* 0 */
 
diff --git a/configs/olimex-lpc-h3131/include/board.h b/configs/olimex-lpc-h3131/include/board.h
index 395eddee2b..f9952ab740 100644
--- a/configs/olimex-lpc-h3131/include/board.h
+++ b/configs/olimex-lpc-h3131/include/board.h
@@ -1,7 +1,7 @@
 /************************************************************************************
  * configs/olimex-lpc-h3131/include/board.h
  *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013, 2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -187,14 +187,15 @@ void lpc31_boardinitialize(void);
  *
  * Input parameter:
  *   handler - New overcurrent interrupt handler
+ *   arg     - The argument that will accompany the interrupt
  *
  * Returned value:
- *   Old overcurrent interrupt handler
+ *   Zero (OK) returned on success; a negated errno value is returned on failure.
  *
  ************************************************************************************/
 
 #if 0 /* Not ready yet */
-xcpt_t lpc31_setup_overcurrent(xcpt_t handler);
+int lpc31_setup_overcurrent(xcpt_t handler, void *arg);
 #endif
 
 #endif /* __ASSEMBLY__ */
diff --git a/configs/olimex-lpc-h3131/src/lpc31_usbhost.c b/configs/olimex-lpc-h3131/src/lpc31_usbhost.c
index a52f94d458..18b865b7db 100644
--- a/configs/olimex-lpc-h3131/src/lpc31_usbhost.c
+++ b/configs/olimex-lpc-h3131/src/lpc31_usbhost.c
@@ -1,7 +1,7 @@
 /************************************************************************************
  * configs/olimex-lpc-h3131/src/lpc31_usbhost.c
  *
- *   Copyright (C) 2013, 2015-2016 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013, 2015-2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -293,16 +293,16 @@ void lpc31_usbhost_vbusdrive(int rhport, bool enable)
  *
  * Input parameter:
  *   handler - New overcurrent interrupt handler
+ *   arg     - The argument that will accompany the interrupt
  *
  * Returned value:
- *   Old overcurrent interrupt handler
+ *   Zero (OK) returned on success; a negated errno value is returned on failure.
  *
  ************************************************************************************/
 
 #if 0 /* Not ready yet */
-xcpt_t lpc31_setup_overcurrent(xcpt_t handler)
+int lpc31_setup_overcurrent(xcpt_t handler, void *arg)
 {
-  xcpt_t oldhandler;
   irqstate_t flags;
 
   /* Disable interrupts until we are done.  This guarantees that the
@@ -311,16 +311,9 @@ xcpt_t lpc31_setup_overcurrent(xcpt_t handler)
 
   flags = enter_critical_section();
 
-  /* Get the old button interrupt handler and save the new one */
-
-  oldhandler  = g_ochandler;
-  g_ochandler = handler;
-
   /* Configure the interrupt */
 #warning Missing logic
 
-  /* Return the old button handler (so that it can be restored) */
-
   leave_critical_section(flags);
   return oldhandler;
 }
diff --git a/configs/stm3210e-eval/README.txt b/configs/stm3210e-eval/README.txt
index f249c3284d..62b78a4a9a 100644
--- a/configs/stm3210e-eval/README.txt
+++ b/configs/stm3210e-eval/README.txt
@@ -365,7 +365,7 @@ Temperature Sensor
 
   More complex temperature sensor operations are also available.  See the
   IOCTL commands enumerated in include/nuttx/sensors/lm75.h.  Also read the 
-  escriptions of the stm32_lm75initialize() and stm32_lm75attach()
+  descriptions of the stm32_lm75initialize() and stm32_lm75attach()
   interfaces in the arch/board/board.h file (sames as
   configs/stm3210e-eval/include/board.h).
 
diff --git a/configs/stm3210e-eval/include/board.h b/configs/stm3210e-eval/include/board.h
index 087b762bc2..d5f9c13f38 100644
--- a/configs/stm3210e-eval/include/board.h
+++ b/configs/stm3210e-eval/include/board.h
@@ -1,7 +1,7 @@
 /************************************************************************************
  * configs/stm3210e-eval/include/board.h
  *
- *   Copyright (C) 2009, 2016 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009, 2016-2017 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -289,14 +289,15 @@ int stm32_lm75initialize(FAR const char *devpath);
  *
  * Input parameters:
  *   irqhandler - the LM-75 interrupt handler
+ *   arg        - The argument that will accompany the interrupt
  *
  * Returned Value:
- *   The previous LM-75 interrupt handler
+ *   Zero (OK) returned on success; a negated errno value is returned on failure.
  *
  ************************************************************************************/
 
 #if defined(CONFIG_I2C) && defined(CONFIG_I2C_LM75) && defined(CONFIG_STM32_I2C1)
-xcpt_t stm32_lm75attach(xcpt_t irqhandler);
+int stm32_lm75attach(xcpt_t irqhandler, void *arg);
 #endif
 
 #undef EXTERN
diff --git a/configs/stm3210e-eval/src/stm32_lm75.c b/configs/stm3210e-eval/src/stm32_lm75.c
index a238bf7d63..959dd6731c 100644
--- a/configs/stm3210e-eval/src/stm32_lm75.c
+++ b/configs/stm3210e-eval/src/stm32_lm75.c
@@ -106,15 +106,17 @@ int stm32_lm75initialize(FAR const char *devpath)
  *
  * Input parameters:
  *   irqhandler - the LM-75 interrupt handler
+ *   arg        - The argument that will accompany the interrupt
  *
  * Returned Value:
- *   The previous LM-75 interrupt handler
+ *   Zero (OK) returned on success; a negated errno value is returned on failure.
  *
  ************************************************************************************/
 
-xcpt_t stm32_lm75attach(xcpt_t irqhandler)
+int stm32_lm75attach(xcpt_t irqhandler, void *arg)
 {
-  return stm32_gpiosetevent(GPIO_LM75_OSINT, true, true, true, irqhandler, NULL);
+  (void)stm32_gpiosetevent(GPIO_LM75_OSINT, true, true, true, irqhandler, arg);
+  return OK;
 }
 
 #endif /* CONFIG_I2C && CONFIG_I2C_LM75 && CONFIG_STM32_I2C1 */