diff --git a/core/src/dma.rs b/core/src/dma.rs
index d63a228..d6fdb5a 100644
--- a/core/src/dma.rs
+++ b/core/src/dma.rs
@@ -2,7 +2,7 @@ use super::arm7tdmi::memory::{MemoryAccess, MemoryInterface};
 use super::cartridge::BackupMedia;
 use super::interrupt::{self, Interrupt, InterruptConnect, SharedInterruptFlags};
 use super::iodev::consts::{REG_FIFO_A, REG_FIFO_B};
-use super::sched::{EventType, Scheduler, SharedScheduler};
+use super::sched::{EventType, Scheduler, SchedulerConnect, SharedScheduler};
 use super::sysbus::SysBus;
 
 use num::FromPrimitive;
@@ -206,6 +206,12 @@ impl InterruptConnect for DmaController {
     }
 }
 
+impl SchedulerConnect for DmaController {
+    fn connect_scheduler(&mut self, scheduler: SharedScheduler) {
+        self.scheduler = scheduler;
+    }
+}
+
 impl DmaController {
     pub fn new(interrupt_flags: SharedInterruptFlags, scheduler: SharedScheduler) -> DmaController {
         DmaController {
diff --git a/core/src/gba.rs b/core/src/gba.rs
index 359b1a4..dc7e280 100644
--- a/core/src/gba.rs
+++ b/core/src/gba.rs
@@ -11,7 +11,7 @@ use super::dma::DmaController;
 use super::gpu::*;
 use super::interrupt::*;
 use super::iodev::*;
-use super::sched::{EventType, Scheduler, SharedScheduler};
+use super::sched::{EventType, Scheduler, SchedulerConnect, SharedScheduler};
 use super::sound::SoundController;
 use super::sysbus::SysBus;
 use super::timer::Timers;
@@ -134,8 +134,7 @@ impl GameBoyAdvance {
         let mut cartridge = decoded.cartridge;
         cartridge.set_rom_bytes(rom);
         io_devs.connect_irq(interrupts.clone());
-        io_devs.gpu.set_scheduler(scheduler.clone());
-        io_devs.sound.set_scheduler(scheduler.clone());
+        io_devs.connect_scheduler(scheduler.clone());
         let mut sysbus = Shared::new(SysBus::new_with_memories(
             scheduler.clone(),
             io_devs.clone(),
@@ -194,9 +193,8 @@ impl GameBoyAdvance {
         self.sysbus.set_ewram(decoded.ewram);
         // Redistribute shared pointers
         self.io_devs.connect_irq(self.interrupt_flags.clone());
-        self.io_devs.gpu.set_scheduler(self.scheduler.clone());
-        self.io_devs.sound.set_scheduler(self.scheduler.clone());
-        self.sysbus.set_scheduler(self.scheduler.clone());
+        self.io_devs.connect_scheduler(self.scheduler.clone());
+        self.sysbus.connect_scheduler(self.scheduler.clone());
         self.sysbus.set_io_devices(self.io_devs.clone());
         self.sysbus.cartridge.update_from(decoded.cartridge);
         self.sysbus.init(self.cpu.weak_ptr());
diff --git a/core/src/gpu/mod.rs b/core/src/gpu/mod.rs
index 5c8b096..0ef4ec9 100644
--- a/core/src/gpu/mod.rs
+++ b/core/src/gpu/mod.rs
@@ -183,7 +183,7 @@ pub struct Gpu {
     pub state: GpuState,
     interrupt_flags: SharedInterruptFlags,
 
-    /// When deserializing this struct using serde, make sure to call Gpu:::set_scheduler
+    /// When deserializing this struct using serde, make sure to call connect_scheduler
     #[serde(skip)]
     #[serde(default = "Scheduler::new_shared")]
     scheduler: SharedScheduler,
@@ -228,6 +228,12 @@ impl InterruptConnect for Gpu {
     }
 }
 
+impl SchedulerConnect for Gpu {
+    fn connect_scheduler(&mut self, scheduler: SharedScheduler) {
+        self.scheduler = scheduler;
+    }
+}
+
 impl Gpu {
     pub fn new(mut scheduler: SharedScheduler, interrupt_flags: SharedInterruptFlags) -> Gpu {
         scheduler.push_gpu_event(GpuEvent::HDraw, CYCLES_HDRAW);
@@ -268,10 +274,6 @@ impl Gpu {
         }
     }
 
-    pub fn set_scheduler(&mut self, scheduler: SharedScheduler) {
-        self.scheduler = scheduler;
-    }
-
     pub fn write_dispcnt(&mut self, value: u16) {
         let new_dispcnt = DisplayControl(value);
         let old_mode = self.dispcnt.mode();
diff --git a/core/src/iodev.rs b/core/src/iodev.rs
index c70112c..748cea0 100644
--- a/core/src/iodev.rs
+++ b/core/src/iodev.rs
@@ -6,6 +6,7 @@ use super::gpu::regs::WindowFlags;
 use super::gpu::*;
 use super::interrupt::{InterruptConnect, InterruptController, SharedInterruptFlags};
 use super::keypad;
+use super::sched::{SchedulerConnect, SharedScheduler};
 use super::sound::SoundController;
 use super::sysbus::SysBusPtr;
 use super::timer::Timers;
@@ -77,6 +78,15 @@ impl InterruptConnect for IoDevices {
     }
 }
 
+impl SchedulerConnect for IoDevices {
+    fn connect_scheduler(&mut self, scheduler: SharedScheduler) {
+        self.gpu.connect_scheduler(scheduler.clone());
+        self.sound.connect_scheduler(scheduler.clone());
+        self.dmac.connect_scheduler(scheduler.clone());
+        self.timers.connect_scheduler(scheduler.clone());
+    }
+}
+
 impl Bus for IoDevices {
     fn read_16(&mut self, addr: Addr) -> u16 {
         let io = self;
diff --git a/core/src/sched.rs b/core/src/sched.rs
index d5d27f6..598bf07 100644
--- a/core/src/sched.rs
+++ b/core/src/sched.rs
@@ -212,6 +212,10 @@ impl Scheduler {
     }
 }
 
+pub trait SchedulerConnect {
+    fn connect_scheduler(&mut self, scheduler: SharedScheduler);
+}
+
 #[cfg(test)]
 mod test {
 
diff --git a/core/src/sound/mod.rs b/core/src/sound/mod.rs
index 9cbea0c..cb80463 100644
--- a/core/src/sound/mod.rs
+++ b/core/src/sound/mod.rs
@@ -105,6 +105,12 @@ pub struct SoundController {
     output_buffer: Vec<StereoSample<f32>>,
 }
 
+impl SchedulerConnect for SoundController {
+    fn connect_scheduler(&mut self, scheduler: SharedScheduler) {
+        self.scheduler = scheduler;
+    }
+}
+
 impl SoundController {
     pub fn new(mut scheduler: SharedScheduler, audio_device_sample_rate: f32) -> SoundController {
         let resampler = CosineResampler::new(32768_f32, audio_device_sample_rate);
@@ -143,10 +149,6 @@ impl SoundController {
         }
     }
 
-    pub fn set_scheduler(&mut self, scheduler: SharedScheduler) {
-        self.scheduler = scheduler;
-    }
-
     pub fn handle_read(&self, io_addr: u32) -> u16 {
         let value = match io_addr {
             REG_SOUNDCNT_X => cbit(7, self.mse),
diff --git a/core/src/sysbus.rs b/core/src/sysbus.rs
index 897071f..c439fad 100644
--- a/core/src/sysbus.rs
+++ b/core/src/sysbus.rs
@@ -7,7 +7,7 @@ use super::bus::*;
 use super::cartridge::Cartridge;
 use super::dma::DmaNotifer;
 use super::iodev::{IoDevices, WaitControl};
-use super::sched::Scheduler;
+use super::sched::*;
 use super::util::{Shared, WeakPointer};
 
 pub mod consts {
@@ -158,6 +158,12 @@ pub struct SysBus {
 
 pub type SysBusPtr = WeakPointer<SysBus>;
 
+impl SchedulerConnect for SysBus {
+    fn connect_scheduler(&mut self, scheduler: SharedScheduler) {
+        self.scheduler = scheduler;
+    }
+}
+
 impl SysBus {
     pub fn new_with_memories(
         scheduler: Shared<Scheduler>,
@@ -212,10 +218,6 @@ impl SysBus {
         &self.iwram
     }
 
-    pub fn set_scheduler(&mut self, s: Shared<Scheduler>) {
-        self.scheduler = s;
-    }
-
     pub fn set_io_devices(&mut self, io_devs: Shared<IoDevices>) {
         self.io = io_devs;
     }
diff --git a/core/src/timer.rs b/core/src/timer.rs
index af65710..df59f67 100644
--- a/core/src/timer.rs
+++ b/core/src/timer.rs
@@ -1,7 +1,7 @@
 use super::dma::DmaController;
 use super::interrupt::{self, Interrupt, InterruptConnect, SharedInterruptFlags};
 use super::iodev::consts::*;
-use super::sched::{EventType, Scheduler, SharedScheduler};
+use super::sched::{EventType, Scheduler, SchedulerConnect, SharedScheduler};
 use super::sound::SoundController;
 
 use num::FromPrimitive;
@@ -109,6 +109,12 @@ impl InterruptConnect for Timers {
     }
 }
 
+impl SchedulerConnect for Timers {
+    fn connect_scheduler(&mut self, scheduler: SharedScheduler) {
+        self.scheduler = scheduler;
+    }
+}
+
 impl std::ops::Index<usize> for Timers {
     type Output = Timer;
     fn index(&self, index: usize) -> &Self::Output {