10 files changed, 262 insertions, 403 deletions

diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp
index b60fb9139..1fa9cfbfb 100644
--- a/src/core/hle/service/hid/hid.cpp
+++ b/src/core/hle/service/hid/hid.cpp
@@ -36,7 +36,7 @@ void LoopProcess(Core::System& system) {
     server_manager->RegisterNamedService(
         "hid:sys", std::make_shared<IHidSystemServer>(system, resource_manager, firmware_settings));
 
-    server_manager->RegisterNamedService("hidbus", std::make_shared<HidBus>(system));
+    server_manager->RegisterNamedService("hidbus", std::make_shared<Hidbus>(system));
 
     server_manager->RegisterNamedService("irs", std::make_shared<IRS::IRS>(system));
     server_manager->RegisterNamedService("irs:sys", std::make_shared<IRS::IRS_SYS>(system));
diff --git a/src/core/hle/service/hid/hidbus.cpp b/src/core/hle/service/hid/hidbus.cpp
index c903ee8b8..4fb002bc4 100644
--- a/src/core/hle/service/hid/hidbus.cpp
+++ b/src/core/hle/service/hid/hidbus.cpp
@@ -9,6 +9,7 @@
 #include "core/hle/kernel/k_readable_event.h"
 #include "core/hle/kernel/k_shared_memory.h"
 #include "core/hle/kernel/k_transfer_memory.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/hid/hidbus.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/service.h"
@@ -22,25 +23,25 @@ namespace Service::HID {
 // (15ms, 66Hz)
 constexpr auto hidbus_update_ns = std::chrono::nanoseconds{15 * 1000 * 1000};
 
-HidBus::HidBus(Core::System& system_)
+Hidbus::Hidbus(Core::System& system_)
     : ServiceFramework{system_, "hidbus"}, service_context{system_, service_name} {
 
     // clang-format off
     static const FunctionInfo functions[] = {
-            {1, &HidBus::GetBusHandle, "GetBusHandle"},
-            {2, &HidBus::IsExternalDeviceConnected, "IsExternalDeviceConnected"},
-            {3, &HidBus::Initialize, "Initialize"},
-            {4, &HidBus::Finalize, "Finalize"},
-            {5, &HidBus::EnableExternalDevice, "EnableExternalDevice"},
-            {6, &HidBus::GetExternalDeviceId, "GetExternalDeviceId"},
-            {7, &HidBus::SendCommandAsync, "SendCommandAsync"},
-            {8, &HidBus::GetSendCommandAsynceResult, "GetSendCommandAsynceResult"},
-            {9, &HidBus::SetEventForSendCommandAsycResult, "SetEventForSendCommandAsycResult"},
-            {10, &HidBus::GetSharedMemoryHandle, "GetSharedMemoryHandle"},
-            {11, &HidBus::EnableJoyPollingReceiveMode, "EnableJoyPollingReceiveMode"},
-            {12, &HidBus::DisableJoyPollingReceiveMode, "DisableJoyPollingReceiveMode"},
+            {1, C<&Hidbus::GetBusHandle>, "GetBusHandle"},
+            {2, C<&Hidbus::IsExternalDeviceConnected>, "IsExternalDeviceConnected"},
+            {3, C<&Hidbus::Initialize>, "Initialize"},
+            {4, C<&Hidbus::Finalize>, "Finalize"},
+            {5, C<&Hidbus::EnableExternalDevice>, "EnableExternalDevice"},
+            {6, C<&Hidbus::GetExternalDeviceId>, "GetExternalDeviceId"},
+            {7, C<&Hidbus::SendCommandAsync>, "SendCommandAsync"},
+            {8, C<&Hidbus::GetSendCommandAsynceResult>, "GetSendCommandAsynceResult"},
+            {9, C<&Hidbus::SetEventForSendCommandAsycResult>, "SetEventForSendCommandAsycResult"},
+            {10, C<&Hidbus::GetSharedMemoryHandle>, "GetSharedMemoryHandle"},
+            {11, C<&Hidbus::EnableJoyPollingReceiveMode>, "EnableJoyPollingReceiveMode"},
+            {12, C<&Hidbus::DisableJoyPollingReceiveMode>, "DisableJoyPollingReceiveMode"},
             {13, nullptr, "GetPollingData"},
-            {14, &HidBus::SetStatusManagerType, "SetStatusManagerType"},
+            {14, C<&Hidbus::SetStatusManagerType>, "SetStatusManagerType"},
     };
     // clang-format on
 
@@ -60,11 +61,11 @@ HidBus::HidBus(Core::System& system_)
                                               hidbus_update_event);
 }
 
-HidBus::~HidBus() {
+Hidbus::~Hidbus() {
     system.CoreTiming().UnscheduleEvent(hidbus_update_event);
 }
 
-void HidBus::UpdateHidbus(std::chrono::nanoseconds ns_late) {
+void Hidbus::UpdateHidbus(std::chrono::nanoseconds ns_late) {
     if (is_hidbus_enabled) {
         for (std::size_t i = 0; i < devices.size(); ++i) {
             if (!devices[i].is_device_initialized) {
@@ -84,7 +85,7 @@ void HidBus::UpdateHidbus(std::chrono::nanoseconds ns_late) {
     }
 }
 
-std::optional<std::size_t> HidBus::GetDeviceIndexFromHandle(BusHandle handle) const {
+std::optional<std::size_t> Hidbus::GetDeviceIndexFromHandle(BusHandle handle) const {
     for (std::size_t i = 0; i < devices.size(); ++i) {
         const auto& device_handle = devices[i].handle;
         if (handle.abstracted_pad_id == device_handle.abstracted_pad_id &&
@@ -98,20 +99,11 @@ std::optional<std::size_t> HidBus::GetDeviceIndexFromHandle(BusHandle handle) co
     return std::nullopt;
 }
 
-void HidBus::GetBusHandle(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        Core::HID::NpadIdType npad_id;
-        INSERT_PADDING_WORDS_NOINIT(1);
-        BusType bus_type;
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x18, "Parameters has incorrect size.");
-
-    const auto parameters{rp.PopRaw<Parameters>()};
-
-    LOG_INFO(Service_HID, "called, npad_id={}, bus_type={}, applet_resource_user_id={}",
-             parameters.npad_id, parameters.bus_type, parameters.applet_resource_user_id);
+Result Hidbus::GetBusHandle(Out<bool> out_is_valid, Out<BusHandle> out_bus_handle,
+                            Core::HID::NpadIdType npad_id, BusType bus_type,
+                            AppletResourceUserId aruid) {
+    LOG_INFO(Service_HID, "called, npad_id={}, bus_type={}, applet_resource_user_id={}", npad_id,
+             bus_type, aruid.pid);
 
     bool is_handle_found = 0;
     std::size_t handle_index = 0;
@@ -121,8 +113,8 @@ void HidBus::GetBusHandle(HLERequestContext& ctx) {
         if (!handle.is_valid) {
             continue;
         }
-        if (static_cast<Core::HID::NpadIdType>(handle.player_number) == parameters.npad_id &&
-            handle.bus_type_id == static_cast<u8>(parameters.bus_type)) {
+        if (handle.player_number.As<Core::HID::NpadIdType>() == npad_id &&
+            handle.bus_type_id == static_cast<u8>(bus_type)) {
             is_handle_found = true;
             handle_index = i;
             break;
@@ -135,388 +127,231 @@ void HidBus::GetBusHandle(HLERequestContext& ctx) {
             if (devices[i].handle.is_valid) {
                 continue;
             }
-            devices[i].handle = {
-                .abstracted_pad_id = static_cast<u8>(i),
-                .internal_index = static_cast<u8>(i),
-                .player_number = static_cast<u8>(parameters.npad_id),
-                .bus_type_id = static_cast<u8>(parameters.bus_type),
-                .is_valid = true,
-            };
+            devices[i].handle.raw = 0;
+            devices[i].handle.abstracted_pad_id.Assign(i);
+            devices[i].handle.internal_index.Assign(i);
+            devices[i].handle.player_number.Assign(static_cast<u8>(npad_id));
+            devices[i].handle.bus_type_id.Assign(static_cast<u8>(bus_type));
+            devices[i].handle.is_valid.Assign(true);
             handle_index = i;
             break;
         }
     }
 
-    struct OutData {
-        bool is_valid;
-        INSERT_PADDING_BYTES(7);
-        BusHandle handle;
-    };
-    static_assert(sizeof(OutData) == 0x10, "OutData has incorrect size.");
-
-    const OutData out_data{
-        .is_valid = true,
-        .handle = devices[handle_index].handle,
-    };
-
-    IPC::ResponseBuilder rb{ctx, 6};
-    rb.Push(ResultSuccess);
-    rb.PushRaw(out_data);
+    *out_is_valid = true;
+    *out_bus_handle = devices[handle_index].handle;
+    R_SUCCEED();
 }
 
-void HidBus::IsExternalDeviceConnected(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::IsExternalDeviceConnected(Out<bool> out_is_connected, BusHandle bus_handle) {
     LOG_INFO(Service_HID,
              "Called, abstracted_pad_id={}, bus_type={}, internal_index={}, "
              "player_number={}, is_valid={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid);
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        const auto& device = devices[device_index.value()].device;
-        const bool is_attached = device->IsDeviceActivated();
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(is_attached);
-        return;
-    }
-
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    *out_is_connected = devices[device_index.value()].device->IsDeviceActivated();
+    R_SUCCEED();
 }
 
-void HidBus::Initialize(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
+Result Hidbus::Initialize(BusHandle bus_handle, AppletResourceUserId aruid) {
     LOG_INFO(Service_HID,
              "called, abstracted_pad_id={} bus_type={} internal_index={} "
              "player_number={} is_valid={}, applet_resource_user_id={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid, applet_resource_user_id);
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid, aruid.pid);
 
     is_hidbus_enabled = true;
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
-
-    if (device_index) {
-        const auto entry_index = devices[device_index.value()].handle.internal_index;
-        auto& cur_entry = hidbus_status.entries[entry_index];
-
-        if (bus_handle_.internal_index == 0 && Settings::values.enable_ring_controller) {
-            MakeDevice<RingController>(bus_handle_);
-            devices[device_index.value()].is_device_initialized = true;
-            devices[device_index.value()].device->ActivateDevice();
-            cur_entry.is_in_focus = true;
-            cur_entry.is_connected = true;
-            cur_entry.is_connected_result = ResultSuccess;
-            cur_entry.is_enabled = false;
-            cur_entry.is_polling_mode = false;
-        } else {
-            MakeDevice<HidbusStubbed>(bus_handle_);
-            devices[device_index.value()].is_device_initialized = true;
-            cur_entry.is_in_focus = true;
-            cur_entry.is_connected = false;
-            cur_entry.is_connected_result = ResultSuccess;
-            cur_entry.is_enabled = false;
-            cur_entry.is_polling_mode = false;
-        }
-
-        std::memcpy(system.Kernel().GetHidBusSharedMem().GetPointer(), &hidbus_status,
-                    sizeof(hidbus_status));
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
-}
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-void HidBus::Finalize(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-    const auto applet_resource_user_id{rp.Pop<u64>()};
-
-    LOG_INFO(Service_HID,
-             "called, abstracted_pad_id={}, bus_type={}, internal_index={}, "
-             "player_number={}, is_valid={}, applet_resource_user_id={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid, applet_resource_user_id);
-
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
-
-    if (device_index) {
-        const auto entry_index = devices[device_index.value()].handle.internal_index;
-        auto& cur_entry = hidbus_status.entries[entry_index];
-        auto& device = devices[device_index.value()].device;
-        devices[device_index.value()].is_device_initialized = false;
-        device->DeactivateDevice();
+    const auto entry_index = devices[device_index.value()].handle.internal_index;
+    auto& cur_entry = hidbus_status.entries[entry_index];
 
+    if (bus_handle.internal_index == 0 && Settings::values.enable_ring_controller) {
+        MakeDevice<RingController>(bus_handle);
+        devices[device_index.value()].is_device_initialized = true;
+        devices[device_index.value()].device->ActivateDevice();
+        cur_entry.is_in_focus = true;
+        cur_entry.is_connected = true;
+        cur_entry.is_connected_result = ResultSuccess;
+        cur_entry.is_enabled = false;
+        cur_entry.is_polling_mode = false;
+    } else {
+        MakeDevice<HidbusStubbed>(bus_handle);
+        devices[device_index.value()].is_device_initialized = true;
         cur_entry.is_in_focus = true;
         cur_entry.is_connected = false;
         cur_entry.is_connected_result = ResultSuccess;
         cur_entry.is_enabled = false;
         cur_entry.is_polling_mode = false;
-        std::memcpy(system.Kernel().GetHidBusSharedMem().GetPointer(), &hidbus_status,
-                    sizeof(hidbus_status));
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
     }
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    std::memcpy(system.Kernel().GetHidBusSharedMem().GetPointer(), &hidbus_status,
+                sizeof(hidbus_status));
+    R_SUCCEED();
 }
 
-void HidBus::EnableExternalDevice(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    struct Parameters {
-        bool enable;
-        INSERT_PADDING_BYTES_NOINIT(7);
-        BusHandle bus_handle;
-        u64 inval;
-        u64 applet_resource_user_id;
-    };
-    static_assert(sizeof(Parameters) == 0x20, "Parameters has incorrect size.");
-
-    const auto parameters{rp.PopRaw<Parameters>()};
+Result Hidbus::Finalize(BusHandle bus_handle, AppletResourceUserId aruid) {
+    LOG_INFO(Service_HID,
+             "called, abstracted_pad_id={}, bus_type={}, internal_index={}, "
+             "player_number={}, is_valid={}, applet_resource_user_id={}",
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid, aruid.pid);
+
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
+
+    R_UNLESS(device_index.has_value(), ResultUnknown);
+
+    const auto entry_index = devices[device_index.value()].handle.internal_index;
+    auto& cur_entry = hidbus_status.entries[entry_index];
+    auto& device = devices[device_index.value()].device;
+    devices[device_index.value()].is_device_initialized = false;
+    device->DeactivateDevice();
+
+    cur_entry.is_in_focus = true;
+    cur_entry.is_connected = false;
+    cur_entry.is_connected_result = ResultSuccess;
+    cur_entry.is_enabled = false;
+    cur_entry.is_polling_mode = false;
+    std::memcpy(system.Kernel().GetHidBusSharedMem().GetPointer(), &hidbus_status,
+                sizeof(hidbus_status));
+    R_SUCCEED();
+}
 
+Result Hidbus::EnableExternalDevice(bool is_enabled, BusHandle bus_handle, u64 inval,
+                                    AppletResourceUserId aruid) {
     LOG_DEBUG(Service_HID,
               "called, enable={}, abstracted_pad_id={}, bus_type={}, internal_index={}, "
               "player_number={}, is_valid={}, inval={}, applet_resource_user_id{}",
-              parameters.enable, parameters.bus_handle.abstracted_pad_id,
-              parameters.bus_handle.bus_type_id, parameters.bus_handle.internal_index,
-              parameters.bus_handle.player_number, parameters.bus_handle.is_valid, parameters.inval,
-              parameters.applet_resource_user_id);
-
-    const auto device_index = GetDeviceIndexFromHandle(parameters.bus_handle);
-
-    if (device_index) {
-        auto& device = devices[device_index.value()].device;
-        device->Enable(parameters.enable);
+              is_enabled, bus_handle.abstracted_pad_id, bus_handle.bus_type_id,
+              bus_handle.internal_index, bus_handle.player_number, bus_handle.is_valid, inval,
+              aruid.pid);
 
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    R_UNLESS(device_index.has_value(), ResultUnknown);
+    devices[device_index.value()].device->Enable(is_enabled);
+    R_SUCCEED();
 }
 
-void HidBus::GetExternalDeviceId(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::GetExternalDeviceId(Out<u32> out_device_id, BusHandle bus_handle) {
     LOG_DEBUG(Service_HID,
               "called, abstracted_pad_id={}, bus_type={}, internal_index={}, player_number={}, "
               "is_valid={}",
-              bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-              bus_handle_.player_number, bus_handle_.is_valid);
-
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
-
-    if (device_index) {
-        const auto& device = devices[device_index.value()].device;
-        u32 device_id = device->GetDeviceId();
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(device_id);
-        return;
-    }
+              bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+              bus_handle.player_number, bus_handle.is_valid);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
-}
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-void HidBus::SendCommandAsync(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto data = ctx.ReadBuffer();
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
+    *out_device_id = devices[device_index.value()].device->GetDeviceId();
+    R_SUCCEED();
+}
+
+Result Hidbus::SendCommandAsync(BusHandle bus_handle,
+                                InBuffer<BufferAttr_HipcAutoSelect> buffer_data) {
     LOG_DEBUG(Service_HID,
               "called, data_size={}, abstracted_pad_id={}, bus_type={}, internal_index={}, "
               "player_number={}, is_valid={}",
-              data.size(), bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id,
-              bus_handle_.internal_index, bus_handle_.player_number, bus_handle_.is_valid);
+              buffer_data.size(), bus_handle.abstracted_pad_id, bus_handle.bus_type_id,
+              bus_handle.internal_index, bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        auto& device = devices[device_index.value()].device;
-        device->SetCommand(data);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    devices[device_index.value()].device->SetCommand(buffer_data);
+    R_SUCCEED();
 };
 
-void HidBus::GetSendCommandAsynceResult(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::GetSendCommandAsynceResult(Out<u64> out_data_size, BusHandle bus_handle,
+                                          OutBuffer<BufferAttr_HipcAutoSelect> out_buffer_data) {
     LOG_DEBUG(Service_HID,
               "called, abstracted_pad_id={}, bus_type={}, internal_index={}, player_number={}, "
               "is_valid={}",
-              bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-              bus_handle_.player_number, bus_handle_.is_valid);
-
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+              bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+              bus_handle.player_number, bus_handle.is_valid);
 
-    if (device_index) {
-        const auto& device = devices[device_index.value()].device;
-        const std::vector<u8> data = device->GetReply();
-        const u64 data_size = ctx.WriteBuffer(data);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push<u64>(data_size);
-        return;
-    }
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    *out_data_size = devices[device_index.value()].device->GetReply(out_buffer_data);
+    R_SUCCEED();
 };
 
-void HidBus::SetEventForSendCommandAsycResult(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::SetEventForSendCommandAsycResult(OutCopyHandle<Kernel::KReadableEvent> out_event,
+                                                BusHandle bus_handle) {
     LOG_INFO(Service_HID,
              "called, abstracted_pad_id={}, bus_type={}, internal_index={}, player_number={}, "
              "is_valid={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid);
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        const auto& device = devices[device_index.value()].device;
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(device->GetSendCommandAsycEvent());
-        return;
-    }
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    *out_event = &devices[device_index.value()].device->GetSendCommandAsycEvent();
+    R_SUCCEED();
 };
 
-void HidBus::GetSharedMemoryHandle(HLERequestContext& ctx) {
+Result Hidbus::GetSharedMemoryHandle(OutCopyHandle<Kernel::KSharedMemory> out_shared_memory) {
     LOG_DEBUG(Service_HID, "called");
 
-    IPC::ResponseBuilder rb{ctx, 2, 1};
-    rb.Push(ResultSuccess);
-    rb.PushCopyObjects(&system.Kernel().GetHidBusSharedMem());
+    *out_shared_memory = &system.Kernel().GetHidBusSharedMem();
+    R_SUCCEED();
 }
 
-void HidBus::EnableJoyPollingReceiveMode(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto t_mem_size{rp.Pop<u32>()};
-    const auto t_mem_handle{ctx.GetCopyHandle(0)};
-    const auto polling_mode_{rp.PopEnum<JoyPollingMode>()};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::EnableJoyPollingReceiveMode(u32 t_mem_size, JoyPollingMode polling_mode,
+                                           BusHandle bus_handle,
+                                           InCopyHandle<Kernel::KTransferMemory> t_mem) {
     ASSERT_MSG(t_mem_size == 0x1000, "t_mem_size is not 0x1000 bytes");
-
-    auto t_mem = ctx.GetObjectFromHandle<Kernel::KTransferMemory>(t_mem_handle);
-
-    if (t_mem.IsNull()) {
-        LOG_ERROR(Service_HID, "t_mem is a nullptr for handle=0x{:08X}", t_mem_handle);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultUnknown);
-        return;
-    }
-
-    ASSERT_MSG(t_mem->GetSize() == 0x1000, "t_mem has incorrect size");
+    ASSERT_MSG(t_mem->GetSize() == t_mem_size, "t_mem has incorrect size");
 
     LOG_INFO(Service_HID,
-             "called, t_mem_handle=0x{:08X}, polling_mode={}, abstracted_pad_id={}, bus_type={}, "
+             "called, polling_mode={}, abstracted_pad_id={}, bus_type={}, "
              "internal_index={}, player_number={}, is_valid={}",
-             t_mem_handle, polling_mode_, bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id,
-             bus_handle_.internal_index, bus_handle_.player_number, bus_handle_.is_valid);
+             polling_mode, bus_handle.abstracted_pad_id, bus_handle.bus_type_id,
+             bus_handle.internal_index, bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        auto& device = devices[device_index.value()].device;
-        device->SetPollingMode(polling_mode_);
-        device->SetTransferMemoryAddress(t_mem->GetSourceAddress());
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
-
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    auto& device = devices[device_index.value()].device;
+    device->SetPollingMode(polling_mode);
+    device->SetTransferMemoryAddress(t_mem->GetSourceAddress());
+    R_SUCCEED();
 }
 
-void HidBus::DisableJoyPollingReceiveMode(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto bus_handle_{rp.PopRaw<BusHandle>()};
-
+Result Hidbus::DisableJoyPollingReceiveMode(BusHandle bus_handle) {
     LOG_INFO(Service_HID,
              "called, abstracted_pad_id={}, bus_type={}, internal_index={}, player_number={}, "
              "is_valid={}",
-             bus_handle_.abstracted_pad_id, bus_handle_.bus_type_id, bus_handle_.internal_index,
-             bus_handle_.player_number, bus_handle_.is_valid);
+             bus_handle.abstracted_pad_id, bus_handle.bus_type_id, bus_handle.internal_index,
+             bus_handle.player_number, bus_handle.is_valid);
 
-    const auto device_index = GetDeviceIndexFromHandle(bus_handle_);
+    const auto device_index = GetDeviceIndexFromHandle(bus_handle);
 
-    if (device_index) {
-        auto& device = devices[device_index.value()].device;
-        device->DisablePollingMode();
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-        return;
-    }
+    R_UNLESS(device_index.has_value(), ResultUnknown);
 
-    LOG_ERROR(Service_HID, "Invalid handle");
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultUnknown);
-    return;
+    auto& device = devices[device_index.value()].device;
+    device->DisablePollingMode();
+    R_SUCCEED();
 }
 
-void HidBus::SetStatusManagerType(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const auto manager_type{rp.PopEnum<StatusManagerType>()};
-
+Result Hidbus::SetStatusManagerType(StatusManagerType manager_type) {
     LOG_WARNING(Service_HID, "(STUBBED) called, manager_type={}", manager_type);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_SUCCEED();
 };
+
 } // namespace Service::HID
diff --git a/src/core/hle/service/hid/hidbus.h b/src/core/hle/service/hid/hidbus.h
index 03d9f6863..af4d95667 100644
--- a/src/core/hle/service/hid/hidbus.h
+++ b/src/core/hle/service/hid/hidbus.h
@@ -5,8 +5,10 @@
 
 #include <functional>
 
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/kernel_helpers.h"
 #include "core/hle/service/service.h"
+#include "hid_core/hid_types.h"
 #include "hid_core/hidbus/hidbus_base.h"
 
 namespace Core::Timing {
@@ -19,10 +21,10 @@ class System;
 
 namespace Service::HID {
 
-class HidBus final : public ServiceFramework<HidBus> {
+class Hidbus final : public ServiceFramework<Hidbus> {
 public:
-    explicit HidBus(Core::System& system_);
-    ~HidBus() override;
+    explicit Hidbus(Core::System& system_);
+    ~Hidbus() override;
 
 private:
     static const std::size_t max_number_of_handles = 0x13;
@@ -41,7 +43,7 @@ private:
     };
 
     // This is nn::hidbus::BusType
-    enum class BusType : u32 {
+    enum class BusType : u64 {
         LeftJoyRail,
         RightJoyRail,
         InternalBus, // Lark microphone
@@ -51,11 +53,15 @@ private:
 
     // This is nn::hidbus::BusHandle
     struct BusHandle {
-        u32 abstracted_pad_id;
-        u8 internal_index;
-        u8 player_number;
-        u8 bus_type_id;
-        bool is_valid;
+        union {
+            u64 raw{};
+
+            BitField<0, 32, u64> abstracted_pad_id;
+            BitField<32, 8, u64> internal_index;
+            BitField<40, 8, u64> player_number;
+            BitField<48, 8, u64> bus_type_id;
+            BitField<56, 1, u64> is_valid;
+        };
     };
     static_assert(sizeof(BusHandle) == 0x8, "BusHandle is an invalid size");
 
@@ -94,19 +100,38 @@ private:
         std::unique_ptr<HidbusBase> device{nullptr};
     };
 
-    void GetBusHandle(HLERequestContext& ctx);
-    void IsExternalDeviceConnected(HLERequestContext& ctx);
-    void Initialize(HLERequestContext& ctx);
-    void Finalize(HLERequestContext& ctx);
-    void EnableExternalDevice(HLERequestContext& ctx);
-    void GetExternalDeviceId(HLERequestContext& ctx);
-    void SendCommandAsync(HLERequestContext& ctx);
-    void GetSendCommandAsynceResult(HLERequestContext& ctx);
-    void SetEventForSendCommandAsycResult(HLERequestContext& ctx);
-    void GetSharedMemoryHandle(HLERequestContext& ctx);
-    void EnableJoyPollingReceiveMode(HLERequestContext& ctx);
-    void DisableJoyPollingReceiveMode(HLERequestContext& ctx);
-    void SetStatusManagerType(HLERequestContext& ctx);
+    Result GetBusHandle(Out<bool> out_is_valid, Out<BusHandle> out_bus_handle,
+                        Core::HID::NpadIdType npad_id, BusType bus_type,
+                        AppletResourceUserId aruid);
+
+    Result IsExternalDeviceConnected(Out<bool> out_is_connected, BusHandle bus_handle);
+
+    Result Initialize(BusHandle bus_handle, AppletResourceUserId aruid);
+
+    Result Finalize(BusHandle bus_handle, AppletResourceUserId aruid);
+
+    Result EnableExternalDevice(bool is_enabled, BusHandle bus_handle, u64 inval,
+                                AppletResourceUserId aruid);
+
+    Result GetExternalDeviceId(Out<u32> out_device_id, BusHandle bus_handle);
+
+    Result SendCommandAsync(BusHandle bus_handle, InBuffer<BufferAttr_HipcAutoSelect> buffer_data);
+
+    Result GetSendCommandAsynceResult(Out<u64> out_data_size, BusHandle bus_handle,
+                                      OutBuffer<BufferAttr_HipcAutoSelect> out_buffer_data);
+
+    Result SetEventForSendCommandAsycResult(OutCopyHandle<Kernel::KReadableEvent> out_event,
+                                            BusHandle bus_handle);
+
+    Result GetSharedMemoryHandle(OutCopyHandle<Kernel::KSharedMemory> out_shared_memory);
+
+    Result EnableJoyPollingReceiveMode(u32 t_mem_size, JoyPollingMode polling_mode,
+                                       BusHandle bus_handle,
+                                       InCopyHandle<Kernel::KTransferMemory> t_mem);
+
+    Result DisableJoyPollingReceiveMode(BusHandle bus_handle);
+
+    Result SetStatusManagerType(StatusManagerType manager_type);
 
     void UpdateHidbus(std::chrono::nanoseconds ns_late);
     std::optional<std::size_t> GetDeviceIndexFromHandle(BusHandle handle) const;
diff --git a/src/hid_core/hidbus/hidbus_base.h b/src/hid_core/hidbus/hidbus_base.h
index ec41684e1..c948606e4 100644
--- a/src/hid_core/hidbus/hidbus_base.h
+++ b/src/hid_core/hidbus/hidbus_base.h
@@ -160,7 +160,7 @@ public:
     }
 
     // Returns a reply from a command
-    virtual std::vector<u8> GetReply() const {
+    virtual u64 GetReply(std::span<u8> out_data) const {
         return {};
     }
 
diff --git a/src/hid_core/hidbus/ringcon.cpp b/src/hid_core/hidbus/ringcon.cpp
index cedf25c16..4f5eaa505 100644
--- a/src/hid_core/hidbus/ringcon.cpp
+++ b/src/hid_core/hidbus/ringcon.cpp
@@ -90,32 +90,32 @@ u8 RingController::GetDeviceId() const {
     return device_id;
 }
 
-std::vector<u8> RingController::GetReply() const {
+u64 RingController::GetReply(std::span<u8> out_data) const {
     const RingConCommands current_command = command;
 
     switch (current_command) {
     case RingConCommands::GetFirmwareVersion:
-        return GetFirmwareVersionReply();
+        return GetFirmwareVersionReply(out_data);
     case RingConCommands::ReadId:
-        return GetReadIdReply();
+        return GetReadIdReply(out_data);
     case RingConCommands::c20105:
-        return GetC020105Reply();
+        return GetC020105Reply(out_data);
     case RingConCommands::ReadUnkCal:
-        return GetReadUnkCalReply();
+        return GetReadUnkCalReply(out_data);
     case RingConCommands::ReadFactoryCal:
-        return GetReadFactoryCalReply();
+        return GetReadFactoryCalReply(out_data);
     case RingConCommands::ReadUserCal:
-        return GetReadUserCalReply();
+        return GetReadUserCalReply(out_data);
     case RingConCommands::ReadRepCount:
-        return GetReadRepCountReply();
+        return GetReadRepCountReply(out_data);
     case RingConCommands::ReadTotalPushCount:
-        return GetReadTotalPushCountReply();
+        return GetReadTotalPushCountReply(out_data);
     case RingConCommands::ResetRepCount:
-        return GetResetRepCountReply();
+        return GetResetRepCountReply(out_data);
     case RingConCommands::SaveCalData:
-        return GetSaveDataReply();
+        return GetSaveDataReply(out_data);
     default:
-        return GetErrorReply();
+        return GetErrorReply(out_data);
     }
 }
 
@@ -163,16 +163,16 @@ bool RingController::SetCommand(std::span<const u8> data) {
     }
 }
 
-std::vector<u8> RingController::GetFirmwareVersionReply() const {
+u64 RingController::GetFirmwareVersionReply(std::span<u8> out_data) const {
     const FirmwareVersionReply reply{
         .status = DataValid::Valid,
         .firmware = version,
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetReadIdReply() const {
+u64 RingController::GetReadIdReply(std::span<u8> out_data) const {
     // The values are hardcoded from a real joycon
     const ReadIdReply reply{
         .status = DataValid::Valid,
@@ -184,83 +184,83 @@ std::vector<u8> RingController::GetReadIdReply() const {
         .id_h_x4 = 8245,
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetC020105Reply() const {
+u64 RingController::GetC020105Reply(std::span<u8> out_data) const {
     const Cmd020105Reply reply{
         .status = DataValid::Valid,
         .data = 1,
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetReadUnkCalReply() const {
+u64 RingController::GetReadUnkCalReply(std::span<u8> out_data) const {
     const ReadUnkCalReply reply{
         .status = DataValid::Valid,
         .data = 0,
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetReadFactoryCalReply() const {
+u64 RingController::GetReadFactoryCalReply(std::span<u8> out_data) const {
     const ReadFactoryCalReply reply{
         .status = DataValid::Valid,
         .calibration = factory_calibration,
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetReadUserCalReply() const {
+u64 RingController::GetReadUserCalReply(std::span<u8> out_data) const {
     const ReadUserCalReply reply{
         .status = DataValid::Valid,
         .calibration = user_calibration,
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetReadRepCountReply() const {
+u64 RingController::GetReadRepCountReply(std::span<u8> out_data) const {
     const GetThreeByteReply reply{
         .status = DataValid::Valid,
         .data = {total_rep_count, 0, 0},
         .crc = GetCrcValue({total_rep_count, 0, 0, 0}),
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetReadTotalPushCountReply() const {
+u64 RingController::GetReadTotalPushCountReply(std::span<u8> out_data) const {
     const GetThreeByteReply reply{
         .status = DataValid::Valid,
         .data = {total_push_count, 0, 0},
         .crc = GetCrcValue({total_push_count, 0, 0, 0}),
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetResetRepCountReply() const {
-    return GetReadRepCountReply();
+u64 RingController::GetResetRepCountReply(std::span<u8> out_data) const {
+    return GetReadRepCountReply(out_data);
 }
 
-std::vector<u8> RingController::GetSaveDataReply() const {
+u64 RingController::GetSaveDataReply(std::span<u8> out_data) const {
     const StatusReply reply{
         .status = DataValid::Valid,
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
-std::vector<u8> RingController::GetErrorReply() const {
+u64 RingController::GetErrorReply(std::span<u8> out_data) const {
     const ErrorReply reply{
         .status = DataValid::BadCRC,
     };
 
-    return GetDataVector(reply);
+    return GetData(reply, out_data);
 }
 
 u8 RingController::GetCrcValue(const std::vector<u8>& data) const {
@@ -281,12 +281,11 @@ u8 RingController::GetCrcValue(const std::vector<u8>& data) const {
 }
 
 template <typename T>
-std::vector<u8> RingController::GetDataVector(const T& reply) const {
+u64 RingController::GetData(const T& reply, std::span<u8> out_data) const {
     static_assert(std::is_trivially_copyable_v<T>);
-    std::vector<u8> data;
-    data.resize(sizeof(reply));
-    std::memcpy(data.data(), &reply, sizeof(reply));
-    return data;
+    const auto data_size = static_cast<u64>(std::min(sizeof(reply), out_data.size()));
+    std::memcpy(out_data.data(), &reply, data_size);
+    return data_size;
 }
 
 } // namespace Service::HID
diff --git a/src/hid_core/hidbus/ringcon.h b/src/hid_core/hidbus/ringcon.h
index 0953e8100..a48eeed45 100644
--- a/src/hid_core/hidbus/ringcon.h
+++ b/src/hid_core/hidbus/ringcon.h
@@ -34,7 +34,7 @@ public:
     bool SetCommand(std::span<const u8> data) override;
 
     // Returns a reply from a command
-    std::vector<u8> GetReply() const override;
+    u64 GetReply(std::span<u8> data) const override;
 
 private:
     // These values are obtained from a real ring controller
@@ -184,44 +184,44 @@ private:
     RingConData GetSensorValue() const;
 
     // Returns 8 byte reply with firmware version
-    std::vector<u8> GetFirmwareVersionReply() const;
+    u64 GetFirmwareVersionReply(std::span<u8> out_data) const;
 
     // Returns 16 byte reply with ID values
-    std::vector<u8> GetReadIdReply() const;
+    u64 GetReadIdReply(std::span<u8> out_data) const;
 
     // (STUBBED) Returns 8 byte reply
-    std::vector<u8> GetC020105Reply() const;
+    u64 GetC020105Reply(std::span<u8> out_data) const;
 
     // (STUBBED) Returns 8 byte empty reply
-    std::vector<u8> GetReadUnkCalReply() const;
+    u64 GetReadUnkCalReply(std::span<u8> out_data) const;
 
     // Returns 20 byte reply with factory calibration values
-    std::vector<u8> GetReadFactoryCalReply() const;
+    u64 GetReadFactoryCalReply(std::span<u8> out_data) const;
 
     // Returns 20 byte reply with user calibration values
-    std::vector<u8> GetReadUserCalReply() const;
+    u64 GetReadUserCalReply(std::span<u8> out_data) const;
 
     // Returns 8 byte reply
-    std::vector<u8> GetReadRepCountReply() const;
+    u64 GetReadRepCountReply(std::span<u8> out_data) const;
 
     // Returns 8 byte reply
-    std::vector<u8> GetReadTotalPushCountReply() const;
+    u64 GetReadTotalPushCountReply(std::span<u8> out_data) const;
 
     // Returns 8 byte reply
-    std::vector<u8> GetResetRepCountReply() const;
+    u64 GetResetRepCountReply(std::span<u8> out_data) const;
 
     // Returns 4 byte save data reply
-    std::vector<u8> GetSaveDataReply() const;
+    u64 GetSaveDataReply(std::span<u8> out_data) const;
 
     // Returns 8 byte error reply
-    std::vector<u8> GetErrorReply() const;
+    u64 GetErrorReply(std::span<u8> out_data) const;
 
     // Returns 8 bit redundancy check from provided data
     u8 GetCrcValue(const std::vector<u8>& data) const;
 
     // Converts structs to an u8 vector equivalent
     template <typename T>
-    std::vector<u8> GetDataVector(const T& reply) const;
+    u64 GetData(const T& reply, std::span<u8> out_data) const;
 
     RingConCommands command{RingConCommands::Error};
 
diff --git a/src/hid_core/hidbus/starlink.cpp b/src/hid_core/hidbus/starlink.cpp
index 31b263aa1..1c4df1d8c 100644
--- a/src/hid_core/hidbus/starlink.cpp
+++ b/src/hid_core/hidbus/starlink.cpp
@@ -38,7 +38,7 @@ u8 Starlink::GetDeviceId() const {
     return DEVICE_ID;
 }
 
-std::vector<u8> Starlink::GetReply() const {
+u64 Starlink::GetReply(std::span<u8> out_data) const {
     return {};
 }
 
diff --git a/src/hid_core/hidbus/starlink.h b/src/hid_core/hidbus/starlink.h
index ee37763b4..695b69748 100644
--- a/src/hid_core/hidbus/starlink.h
+++ b/src/hid_core/hidbus/starlink.h
@@ -31,7 +31,7 @@ public:
     bool SetCommand(std::span<const u8> data) override;
 
     // Returns a reply from a command
-    std::vector<u8> GetReply() const override;
+    u64 GetReply(std::span<u8> out_data) const override;
 };
 
 } // namespace Service::HID
diff --git a/src/hid_core/hidbus/stubbed.cpp b/src/hid_core/hidbus/stubbed.cpp
index f16051aa9..658922a4f 100644
--- a/src/hid_core/hidbus/stubbed.cpp
+++ b/src/hid_core/hidbus/stubbed.cpp
@@ -38,7 +38,7 @@ u8 HidbusStubbed::GetDeviceId() const {
     return DEVICE_ID;
 }
 
-std::vector<u8> HidbusStubbed::GetReply() const {
+u64 HidbusStubbed::GetReply(std::span<u8> out_data) const {
     return {};
 }
 
diff --git a/src/hid_core/hidbus/stubbed.h b/src/hid_core/hidbus/stubbed.h
index 7a711cea0..f05280b3a 100644
--- a/src/hid_core/hidbus/stubbed.h
+++ b/src/hid_core/hidbus/stubbed.h
@@ -31,7 +31,7 @@ public:
     bool SetCommand(std::span<const u8> data) override;
 
     // Returns a reply from a command
-    std::vector<u8> GetReply() const override;
+    u64 GetReply(std::span<u8> out_data) const override;
 };
 
 } // namespace Service::HID