From 9569abe57adab3105d82950c0d3a99e88bf9b79d Mon Sep 17 00:00:00 2001
From: Peter Barker <pbarker@barker.dropbear.id.au>
Date: Tue, 21 Aug 2018 21:40:35 +1000
Subject: [PATCH] AP_HAL_VRBRAIN: remove pointless attach_interrupt override

---
 libraries/AP_HAL_VRBRAIN/GPIO.cpp | 8 --------
 libraries/AP_HAL_VRBRAIN/GPIO.h   | 5 -----
 2 files changed, 13 deletions(-)

diff --git a/libraries/AP_HAL_VRBRAIN/GPIO.cpp b/libraries/AP_HAL_VRBRAIN/GPIO.cpp
index fa0ca9c91a..43d5ce9264 100644
--- a/libraries/AP_HAL_VRBRAIN/GPIO.cpp
+++ b/libraries/AP_HAL_VRBRAIN/GPIO.cpp
@@ -172,14 +172,6 @@ AP_HAL::DigitalSource* VRBRAINGPIO::channel(uint16_t n) {
     return new VRBRAINDigitalSource(0);
 }
 
-/* Interrupt interface: */
-bool VRBRAINGPIO::attach_interrupt(uint8_t interrupt_num,
-                                   irq_handler_fn_t fn,
-                                   INTERRUPT_TRIGGER_TYPE mode)
-{
-    return true;
-}
-
 /*
   return true when USB connected
  */
diff --git a/libraries/AP_HAL_VRBRAIN/GPIO.h b/libraries/AP_HAL_VRBRAIN/GPIO.h
index b14abf89fc..f6422383cd 100644
--- a/libraries/AP_HAL_VRBRAIN/GPIO.h
+++ b/libraries/AP_HAL_VRBRAIN/GPIO.h
@@ -30,11 +30,6 @@ public:
     /* Alternative interface: */
     AP_HAL::DigitalSource* channel(uint16_t n) override;
 
-    /* Interrupt interface: */
-    bool attach_interrupt(uint8_t interrupt_num,
-                          irq_handler_fn_t fn,
-                          INTERRUPT_TRIGGER_TYPE mode) override;
-
     /* return true if USB cable is connected */
     bool usb_connected(void) override;