Merge pull request #4690 from leoetlino/common-usb

IOS: Move out common USB structures

Source/Core/Common/Logging/Log.h

@@ -36,6 +36,7 @@ enum LOG_TYPE
   IOS_SD,
   IOS_SSL,
   IOS_STM,
+  IOS_USB,
   IOS_WC24,
   IOS_WIIMOTE,
   MASTER_LOG,

Source/Core/Common/Logging/LogManager.cpp

@@ -70,6 +70,7 @@ LogManager::LogManager()
   m_Log[LogTypes::IOS_SSL] = new LogContainer("IOS_SSL", "IOS - SSL");
   m_Log[LogTypes::IOS_STM] = new LogContainer("IOS_STM", "IOS - State Transition Manager");
   m_Log[LogTypes::IOS_NET] = new LogContainer("IOS_NET", "IOS - Network");
+  m_Log[LogTypes::IOS_USB] = new LogContainer("IOS_USB", "IOS - USB");
   m_Log[LogTypes::IOS_WC24] = new LogContainer("IOS_WC24", "IOS - WiiConnect24");
   m_Log[LogTypes::IOS_WIIMOTE] = new LogContainer("IOS_WIIMOTE", "IOS - Wii Remote");
   m_Log[LogTypes::MASTER_LOG] = new LogContainer("*", "Master Log");

Source/Core/Core/CMakeLists.txt

@@ -151,6 +151,8 @@ set(SRCS	ActionReplay.cpp
 			IOS/Network/SSL.cpp
 			IOS/SDIO/SDIOSlot0.cpp
 			IOS/STM/STM.cpp
+			IOS/USB/Common.cpp
+			IOS/USB/USBV0.cpp
 			IOS/USB/USB_KBD.cpp
 			IOS/USB/USB_VEN.cpp
 			IOS/USB/Bluetooth/BTBase.cpp

Source/Core/Core/Core.vcxproj

@@ -183,6 +183,8 @@
     <ClCompile Include="IOS\Network\SSL.cpp" />
     <ClCompile Include="IOS\SDIO\SDIOSlot0.cpp" />
     <ClCompile Include="IOS\STM\STM.cpp" />
+    <ClCompile Include="IOS\USB\Common.cpp" />
+    <ClCompile Include="IOS\USB\USBV0.cpp" />
     <ClCompile Include="IOS\USB\USB_HIDv4.cpp">
       <!--
       Disable "nonstandard extension used : zero-sized array in struct/union" warning,
@@ -412,6 +414,8 @@
     <ClInclude Include="IOS\Network\SSL.h" />
     <ClInclude Include="IOS\SDIO\SDIOSlot0.h" />
     <ClInclude Include="IOS\STM\STM.h" />
+    <ClInclude Include="IOS\USB\Common.h" />
+    <ClInclude Include="IOS\USB\USBV0.h" />
     <ClInclude Include="IOS\USB\USB_HIDv4.h" />
     <ClInclude Include="IOS\USB\USB_KBD.h" />
     <ClInclude Include="IOS\USB\USB_VEN.h" />

Source/Core/Core/Core.vcxproj.filters

@@ -764,6 +764,12 @@
     <ClCompile Include="IOS\STM\STM.cpp">
       <Filter>IOS\STM</Filter>
     </ClCompile>
+    <ClCompile Include="IOS\USB\Common.cpp">
+      <Filter>IOS\USB</Filter>
+    </ClCompile>
+    <ClCompile Include="IOS\USB\USBV0.cpp">
+      <Filter>IOS\USB</Filter>
+    </ClCompile>
     <ClCompile Include="IOS\USB\USB_HIDv4.cpp">
       <Filter>IOS\USB</Filter>
     </ClCompile>
@@ -1332,6 +1338,12 @@
     <ClInclude Include="IOS\STM\STM.h">
       <Filter>IOS\STM</Filter>
     </ClInclude>
+    <ClInclude Include="IOS\USB\Common.h">
+      <Filter>IOS\USB</Filter>
+    </ClInclude>
+    <ClInclude Include="IOS\USB\USBV0.h">
+      <Filter>IOS\USB</Filter>
+    </ClInclude>
     <ClInclude Include="IOS\USB\USB_HIDv4.h">
       <Filter>IOS\USB</Filter>
     </ClInclude>
@@ -1363,4 +1375,4 @@
   <ItemGroup>
     <Text Include="CMakeLists.txt" />
   </ItemGroup>
-</Project>
+</Project>

Source/Core/Core/IOS/USB/Bluetooth/BTBase.cpp

@@ -53,32 +53,5 @@ void RestoreBTInfoSection(SysConf* sysconf)
   sysconf->SetArrayData("BT.DINF", section.data(), static_cast<u16>(section.size()));
   File::Delete(filename);
 }
-
-namespace Device
-{
-BluetoothBase::CtrlMessage::CtrlMessage(const IOCtlVRequest& ioctlv) : ios_request(ioctlv)
-{
-  request_type = Memory::Read_U8(ioctlv.in_vectors[0].address);
-  request = Memory::Read_U8(ioctlv.in_vectors[1].address);
-  value = Common::swap16(Memory::Read_U16(ioctlv.in_vectors[2].address));
-  index = Common::swap16(Memory::Read_U16(ioctlv.in_vectors[3].address));
-  length = Common::swap16(Memory::Read_U16(ioctlv.in_vectors[4].address));
-  payload_addr = ioctlv.io_vectors[0].address;
-}
-
-BluetoothBase::CtrlBuffer::CtrlBuffer(const IOCtlVRequest& ioctlv) : ios_request(ioctlv)
-{
-  m_endpoint = Memory::Read_U8(ioctlv.in_vectors[0].address);
-  m_length = Memory::Read_U16(ioctlv.in_vectors[1].address);
-  m_payload_addr = ioctlv.io_vectors[0].address;
-}
-
-void BluetoothBase::CtrlBuffer::FillBuffer(const u8* src, const size_t size) const
-{
-  _assert_msg_(IOS_WIIMOTE, size <= m_length, "FillBuffer: size %li > payload length %i", size,
-               m_length);
-  Memory::CopyToEmu(m_payload_addr, src, size);
-}
-}  // namespace Device
 }  // namespace HLE
 }  // namespace IOS

Source/Core/Core/IOS/USB/Bluetooth/BTBase.h

@@ -36,13 +36,6 @@ protected:
   static constexpr int SCO_PKT_SIZE = 64;
   static constexpr int SCO_PKT_NUM = 0;
 
-  enum USBIOCtl
-  {
-    USBV0_IOCTL_CTRLMSG = 0,
-    USBV0_IOCTL_BLKMSG = 1,
-    USBV0_IOCTL_INTRMSG = 2,
-  };
-
   enum USBEndpoint
   {
     HCI_CTRL = 0x00,
@@ -50,28 +43,6 @@ protected:
     ACL_DATA_IN = 0x82,
     ACL_DATA_OUT = 0x02
   };
-
-  struct CtrlMessage
-  {
-    CtrlMessage(const IOCtlVRequest& ioctlv);
-    IOCtlVRequest ios_request;
-    u8 request_type = 0;
-    u8 request = 0;
-    u16 value = 0;
-    u16 index = 0;
-    u16 length = 0;
-    u32 payload_addr = 0;
-  };
-
-  struct CtrlBuffer
-  {
-    CtrlBuffer(const IOCtlVRequest& ioctlv);
-    IOCtlVRequest ios_request;
-    void FillBuffer(const u8* src, size_t size) const;
-    u8 m_endpoint = 0;
-    u16 m_length = 0;
-    u32 m_payload_addr = 0;
-  };
 };
 }  // namespace Device
 }  // namespace HLE

Source/Core/Core/IOS/USB/Bluetooth/BTEmu.cpp

@@ -167,9 +167,9 @@ IPCCommandResult BluetoothEmu::IOCtlV(const IOCtlVRequest& request)
   bool send_reply = true;
   switch (request.request)
   {
-  case USBV0_IOCTL_CTRLMSG:  // HCI command is received from the stack
+  case USB::IOCTLV_USBV0_CTRLMSG:  // HCI command is received from the stack
   {
-    m_CtrlSetup = std::make_unique<CtrlMessage>(request);
+    m_CtrlSetup = std::make_unique<USB::V0CtrlMessage>(request);
     // Replies are generated inside
     ExecuteHCICommandMessage(*m_CtrlSetup);
     m_CtrlSetup.reset();
@@ -177,50 +177,50 @@ IPCCommandResult BluetoothEmu::IOCtlV(const IOCtlVRequest& request)
     break;
   }
 
-  case USBV0_IOCTL_BLKMSG:
+  case USB::IOCTLV_USBV0_BLKMSG:
   {
-    const CtrlBuffer ctrl{request};
+    const USB::V0BulkMessage ctrl{request};
-    switch (ctrl.m_endpoint)
+    switch (ctrl.endpoint)
     {
     case ACL_DATA_OUT:  // ACL data is received from the stack
     {
       // This is the ACL datapath from CPU to Wii Remote
       const auto* acl_header =
-          reinterpret_cast<hci_acldata_hdr_t*>(Memory::GetPointer(ctrl.m_payload_addr));
+          reinterpret_cast<hci_acldata_hdr_t*>(Memory::GetPointer(ctrl.data_address));
 
       _dbg_assert_(IOS_WIIMOTE, HCI_BC_FLAG(acl_header->con_handle) == HCI_POINT2POINT);
       _dbg_assert_(IOS_WIIMOTE, HCI_PB_FLAG(acl_header->con_handle) == HCI_PACKET_START);
 
       SendToDevice(HCI_CON_HANDLE(acl_header->con_handle),
-                   Memory::GetPointer(ctrl.m_payload_addr + sizeof(hci_acldata_hdr_t)),
+                   Memory::GetPointer(ctrl.data_address + sizeof(hci_acldata_hdr_t)),
                    acl_header->length);
       break;
     }
     case ACL_DATA_IN:  // We are given an ACL buffer to fill
     {
-      m_ACLEndpoint = std::make_unique<CtrlBuffer>(request);
+      m_ACLEndpoint = std::make_unique<USB::V0BulkMessage>(request);
       DEBUG_LOG(IOS_WIIMOTE, "ACL_DATA_IN: 0x%08x ", request.address);
       send_reply = false;
       break;
     }
     default:
-      _dbg_assert_msg_(IOS_WIIMOTE, 0, "Unknown USBV0_IOCTL_BLKMSG: %x", ctrl.m_endpoint);
+      _dbg_assert_msg_(IOS_WIIMOTE, 0, "Unknown USB::IOCTLV_USBV0_BLKMSG: %x", ctrl.endpoint);
     }
     break;
   }
 
-  case USBV0_IOCTL_INTRMSG:
+  case USB::IOCTLV_USBV0_INTRMSG:
   {
-    const CtrlBuffer ctrl{request};
+    const USB::V0IntrMessage ctrl{request};
-    if (ctrl.m_endpoint == HCI_EVENT)  // We are given a HCI buffer to fill
+    if (ctrl.endpoint == HCI_EVENT)  // We are given a HCI buffer to fill
     {
-      m_HCIEndpoint = std::make_unique<CtrlBuffer>(request);
+      m_HCIEndpoint = std::make_unique<USB::V0IntrMessage>(request);
       DEBUG_LOG(IOS_WIIMOTE, "HCI_EVENT: 0x%08x ", request.address);
       send_reply = false;
     }
     else
     {
-      _dbg_assert_msg_(IOS_WIIMOTE, 0, "Unknown USBV0_IOCTL_INTRMSG: %x", ctrl.m_endpoint);
+      _dbg_assert_msg_(IOS_WIIMOTE, 0, "Unknown USB::IOCTLV_USBV0_INTRMSG: %x", ctrl.endpoint);
     }
     break;
   }
@@ -232,7 +232,7 @@ IPCCommandResult BluetoothEmu::IOCtlV(const IOCtlVRequest& request)
   return send_reply ? GetDefaultReply(IPC_SUCCESS) : GetNoReply();
 }
 
-// Here we handle the USBV0_IOCTL_BLKMSG Ioctlv
+// Here we handle the USB::IOCTLV_USBV0_BLKMSG Ioctlv
 void BluetoothEmu::SendToDevice(u16 _ConnectionHandle, u8* _pData, u32 _Size)
 {
   WiimoteDevice* pWiiMote = AccessWiiMote(_ConnectionHandle);
@@ -261,7 +261,7 @@ void BluetoothEmu::SendACLPacket(u16 connection_handle, const u8* data, u32 size
               m_ACLEndpoint->ios_request.address);
 
     hci_acldata_hdr_t* header =
-        reinterpret_cast<hci_acldata_hdr_t*>(Memory::GetPointer(m_ACLEndpoint->m_payload_addr));
+        reinterpret_cast<hci_acldata_hdr_t*>(Memory::GetPointer(m_ACLEndpoint->data_address));
     header->con_handle = HCI_MK_CON_HANDLE(connection_handle, HCI_PACKET_START, HCI_POINT2POINT);
     header->length = size;
 
@@ -412,7 +412,7 @@ void BluetoothEmu::ACLPool::Store(const u8* data, const u16 size, const u16 conn
   packet.conn_handle = conn_handle;
 }
 
-void BluetoothEmu::ACLPool::WriteToEndpoint(CtrlBuffer& endpoint)
+void BluetoothEmu::ACLPool::WriteToEndpoint(USB::V0BulkMessage& endpoint)
 {
   auto& packet = m_queue.front();
 
@@ -424,7 +424,7 @@ void BluetoothEmu::ACLPool::WriteToEndpoint(CtrlBuffer& endpoint)
                          "queue to %08x",
             endpoint.ios_request.address);
 
-  hci_acldata_hdr_t* pHeader = (hci_acldata_hdr_t*)Memory::GetPointer(endpoint.m_payload_addr);
+  hci_acldata_hdr_t* pHeader = (hci_acldata_hdr_t*)Memory::GetPointer(endpoint.data_address);
   pHeader->con_handle = HCI_MK_CON_HANDLE(conn_handle, HCI_PACKET_START, HCI_POINT2POINT);
   pHeader->length = size;
 
@@ -964,11 +964,11 @@ bool BluetoothEmu::SendEventConPacketTypeChange(u16 _connectionHandle, u16 _pack
 }
 
 // Command dispatcher
-// This is called from the USBV0_IOCTL_CTRLMSG Ioctlv
+// This is called from the USB::IOCTLV_USBV0_CTRLMSG Ioctlv
-void BluetoothEmu::ExecuteHCICommandMessage(const CtrlMessage& ctrl_message)
+void BluetoothEmu::ExecuteHCICommandMessage(const USB::V0CtrlMessage& ctrl_message)
 {
-  u8* pInput = Memory::GetPointer(ctrl_message.payload_addr + 3);
+  u8* pInput = Memory::GetPointer(ctrl_message.data_address + 3);
-  SCommandMessage* pMsg = (SCommandMessage*)Memory::GetPointer(ctrl_message.payload_addr);
+  SCommandMessage* pMsg = (SCommandMessage*)Memory::GetPointer(ctrl_message.data_address);
 
   u16 ocf = HCI_OCF(pMsg->Opcode);
   u16 ogf = HCI_OGF(pMsg->Opcode);

Source/Core/Core/IOS/USB/Bluetooth/BTEmu.h

@@ -18,6 +18,7 @@
 #include "Core/IOS/USB/Bluetooth/BTBase.h"
 #include "Core/IOS/USB/Bluetooth/WiimoteDevice.h"
 #include "Core/IOS/USB/Bluetooth/hci.h"
+#include "Core/IOS/USB/USBV0.h"
 
 class PointerWrap;
 
@@ -70,9 +71,9 @@ private:
   // this is used to trigger connecting via ACL
   u8 m_ScanEnable = 0;
 
-  std::unique_ptr<CtrlMessage> m_CtrlSetup;
+  std::unique_ptr<USB::V0CtrlMessage> m_CtrlSetup;
-  std::unique_ptr<CtrlBuffer> m_HCIEndpoint;
+  std::unique_ptr<USB::V0IntrMessage> m_HCIEndpoint;
-  std::unique_ptr<CtrlBuffer> m_ACLEndpoint;
+  std::unique_ptr<USB::V0BulkMessage> m_ACLEndpoint;
   std::deque<SQueuedEvent> m_EventQueue;
 
   class ACLPool
@@ -90,7 +91,7 @@ private:
     ACLPool() : m_queue() {}
     void Store(const u8* data, const u16 size, const u16 conn_handle);
 
-    void WriteToEndpoint(CtrlBuffer& endpoint);
+    void WriteToEndpoint(USB::V0BulkMessage& endpoint);
 
     bool IsEmpty() const { return m_queue.empty(); }
     // For SaveStates
@@ -126,7 +127,7 @@ private:
   bool SendEventLinkKeyNotification(const u8 num_to_send);
 
   // Execute HCI Message
-  void ExecuteHCICommandMessage(const CtrlMessage& ctrl_message);
+  void ExecuteHCICommandMessage(const USB::V0CtrlMessage& ctrl_message);
 
   // OGF 0x01 - Link control commands and return parameters
   void CommandWriteInquiryMode(const u8* input);

Source/Core/Core/IOS/USB/Bluetooth/BTReal.cpp

@@ -178,10 +178,10 @@ IPCCommandResult BluetoothReal::IOCtlV(const IOCtlVRequest& request)
   switch (request.request)
   {
   // HCI commands to the Bluetooth adapter
-  case USBV0_IOCTL_CTRLMSG:
+  case USB::IOCTLV_USBV0_CTRLMSG:
   {
-    auto cmd = std::make_unique<CtrlMessage>(request);
+    auto cmd = std::make_unique<USB::V0CtrlMessage>(request);
-    const u16 opcode = Common::swap16(Memory::Read_U16(cmd->payload_addr));
+    const u16 opcode = Common::swap16(Memory::Read_U16(cmd->data_address));
     if (opcode == HCI_CMD_READ_BUFFER_SIZE)
     {
       m_fake_read_buffer_size_reply.Set();
@@ -196,68 +196,70 @@ IPCCommandResult BluetoothReal::IOCtlV(const IOCtlVRequest& request)
     if (opcode == HCI_CMD_DELETE_STORED_LINK_KEY)
     {
       // Delete link key(s) from our own link key storage when the game tells the adapter to
-      const auto* delete_cmd =
+      hci_delete_stored_link_key_cp delete_cmd;
-          reinterpret_cast<hci_delete_stored_link_key_cp*>(Memory::GetPointer(cmd->payload_addr));
+      Memory::CopyFromEmu(&delete_cmd, cmd->data_address, sizeof(delete_cmd));
-      if (delete_cmd->delete_all)
+      if (delete_cmd.delete_all)
       {
         s_link_keys.clear();
       }
       else
       {
         btaddr_t addr;
-        std::copy(std::begin(delete_cmd->bdaddr.b), std::end(delete_cmd->bdaddr.b), addr.begin());
+        std::copy(std::begin(delete_cmd.bdaddr.b), std::end(delete_cmd.bdaddr.b), addr.begin());
         s_link_keys.erase(addr);
       }
     }
-    auto buffer = std::vector<u8>(cmd->length + LIBUSB_CONTROL_SETUP_SIZE);
+    auto buffer = std::make_unique<u8[]>(cmd->length + LIBUSB_CONTROL_SETUP_SIZE);
-    libusb_fill_control_setup(buffer.data(), cmd->request_type, cmd->request, cmd->value,
+    libusb_fill_control_setup(buffer.get(), cmd->request_type, cmd->request, cmd->value, cmd->index,
-                              cmd->index, cmd->length);
+                              cmd->length);
-    Memory::CopyFromEmu(buffer.data() + LIBUSB_CONTROL_SETUP_SIZE, cmd->payload_addr, cmd->length);
+    Memory::CopyFromEmu(buffer.get() + LIBUSB_CONTROL_SETUP_SIZE, cmd->data_address, cmd->length);
     libusb_transfer* transfer = libusb_alloc_transfer(0);
     transfer->flags |= LIBUSB_TRANSFER_FREE_TRANSFER;
-    libusb_fill_control_transfer(transfer, m_handle, buffer.data(), CommandCallback, cmd.release(),
+    libusb_fill_control_transfer(transfer, m_handle, buffer.release(), CommandCallback,
-                                 0);
+                                 cmd.release(), 0);
     libusb_submit_transfer(transfer);
     break;
   }
   // ACL data (incoming or outgoing) and incoming HCI events (respectively)
-  case USBV0_IOCTL_BLKMSG:
+  case USB::IOCTLV_USBV0_BLKMSG:
-  case USBV0_IOCTL_INTRMSG:
+  case USB::IOCTLV_USBV0_INTRMSG:
   {
-    auto buffer = std::make_unique<CtrlBuffer>(request);
+    auto buffer = std::make_unique<USB::V0IntrMessage>(request);
-    if (request.request == USBV0_IOCTL_INTRMSG && m_fake_read_buffer_size_reply.TestAndClear())
+    if (request.request == USB::IOCTLV_USBV0_INTRMSG)
     {
-      FakeReadBufferSizeReply(*buffer);
+      if (m_sync_button_state == SyncButtonState::Pressed)
-      return GetNoReply();
+      {
-    }
+        Core::DisplayMessage("Scanning for Wii Remotes", 2000);
-    if (request.request == USBV0_IOCTL_INTRMSG && m_fake_vendor_command_reply.TestAndClear())
+        FakeSyncButtonPressedEvent(*buffer);
-    {
+        return GetNoReply();
-      FakeVendorCommandReply(*buffer);
+      }
-      return GetNoReply();
+      if (m_sync_button_state == SyncButtonState::LongPressed)
-    }
+      {
-    if (request.request == USBV0_IOCTL_INTRMSG && m_sync_button_state == SyncButtonState::Pressed)
+        Core::DisplayMessage("Reset saved Wii Remote pairings", 2000);
-    {
+        FakeSyncButtonHeldEvent(*buffer);
-      Core::DisplayMessage("Scanning for Wii Remotes", 2000);
+        return GetNoReply();
-      FakeSyncButtonPressedEvent(*buffer);
+      }
-      return GetNoReply();
+      if (m_fake_read_buffer_size_reply.TestAndClear())
-    }
+      {
-    if (request.request == USBV0_IOCTL_INTRMSG &&
+        FakeReadBufferSizeReply(*buffer);
-        m_sync_button_state == SyncButtonState::LongPressed)
+        return GetNoReply();
-    {
+      }
-      Core::DisplayMessage("Reset saved Wii Remote pairings", 2000);
+      if (m_fake_vendor_command_reply.TestAndClear())
-      FakeSyncButtonHeldEvent(*buffer);
+      {
-      return GetNoReply();
+        FakeVendorCommandReply(*buffer);
+        return GetNoReply();
+      }
     }
     libusb_transfer* transfer = libusb_alloc_transfer(0);
-    transfer->buffer = Memory::GetPointer(buffer->m_payload_addr);
+    transfer->buffer = Memory::GetPointer(buffer->data_address);
     transfer->callback = TransferCallback;
     transfer->dev_handle = m_handle;
-    transfer->endpoint = buffer->m_endpoint;
+    transfer->endpoint = buffer->endpoint;
     transfer->flags |= LIBUSB_TRANSFER_FREE_TRANSFER;
-    transfer->length = buffer->m_length;
+    transfer->length = buffer->length;
     transfer->timeout = TIMEOUT;
-    transfer->type = request.request == USBV0_IOCTL_BLKMSG ? LIBUSB_TRANSFER_TYPE_BULK :
+    transfer->type = request.request == USB::IOCTLV_USBV0_BLKMSG ? LIBUSB_TRANSFER_TYPE_BULK :
-                                                             LIBUSB_TRANSFER_TYPE_INTERRUPT;
+                                                                   LIBUSB_TRANSFER_TYPE_INTERRUPT;
     transfer->user_data = buffer.release();
     libusb_submit_transfer(transfer);
     break;
@@ -390,16 +392,16 @@ bool BluetoothReal::SendHCIStoreLinkKeyCommand()
   return true;
 }
 
-void BluetoothReal::FakeVendorCommandReply(CtrlBuffer& ctrl)
+void BluetoothReal::FakeVendorCommandReply(USB::V0IntrMessage& ctrl)
 {
-  u8* packet = Memory::GetPointer(ctrl.m_payload_addr);
+  SHCIEventCommand hci_event;
-  auto* hci_event = reinterpret_cast<SHCIEventCommand*>(packet);
+  Memory::CopyFromEmu(&hci_event, ctrl.data_address, sizeof(hci_event));
-  hci_event->EventType = HCI_EVENT_COMMAND_COMPL;
+  hci_event.EventType = HCI_EVENT_COMMAND_COMPL;
-  hci_event->PayloadLength = sizeof(SHCIEventCommand) - 2;
+  hci_event.PayloadLength = sizeof(SHCIEventCommand) - 2;
-  hci_event->PacketIndicator = 0x01;
+  hci_event.PacketIndicator = 0x01;
-  hci_event->Opcode = m_fake_vendor_command_reply_opcode;
+  hci_event.Opcode = m_fake_vendor_command_reply_opcode;
-
+  Memory::CopyToEmu(ctrl.data_address, &hci_event, sizeof(hci_event));
-  EnqueueReply(ctrl.ios_request, static_cast<s32>(sizeof(SHCIEventCommand)));
+  EnqueueReply(ctrl.ios_request, static_cast<s32>(sizeof(hci_event)));
 }
 
 // Due to how the widcomm stack which Nintendo uses is coded, we must never
@@ -407,14 +409,15 @@ void BluetoothReal::FakeVendorCommandReply(CtrlBuffer& ctrl)
 // - it will cause a u8 underflow and royally screw things up.
 // Therefore, the reply to this command has to be faked to avoid random, weird issues
 // (including Wiimote disconnects and "event mismatch" warning messages).
-void BluetoothReal::FakeReadBufferSizeReply(CtrlBuffer& ctrl)
+void BluetoothReal::FakeReadBufferSizeReply(USB::V0IntrMessage& ctrl)
 {
-  u8* packet = Memory::GetPointer(ctrl.m_payload_addr);
+  SHCIEventCommand hci_event;
-  auto* hci_event = reinterpret_cast<SHCIEventCommand*>(packet);
+  Memory::CopyFromEmu(&hci_event, ctrl.data_address, sizeof(hci_event));
-  hci_event->EventType = HCI_EVENT_COMMAND_COMPL;
+  hci_event.EventType = HCI_EVENT_COMMAND_COMPL;
-  hci_event->PayloadLength = sizeof(SHCIEventCommand) - 2 + sizeof(hci_read_buffer_size_rp);
+  hci_event.PayloadLength = sizeof(SHCIEventCommand) - 2 + sizeof(hci_read_buffer_size_rp);
-  hci_event->PacketIndicator = 0x01;
+  hci_event.PacketIndicator = 0x01;
-  hci_event->Opcode = HCI_CMD_READ_BUFFER_SIZE;
+  hci_event.Opcode = HCI_CMD_READ_BUFFER_SIZE;
+  Memory::CopyToEmu(ctrl.data_address, &hci_event, sizeof(hci_event));
 
   hci_read_buffer_size_rp reply;
   reply.status = 0x00;
@@ -422,27 +425,26 @@ void BluetoothReal::FakeReadBufferSizeReply(CtrlBuffer& ctrl)
   reply.num_acl_pkts = ACL_PKT_NUM;
   reply.max_sco_size = SCO_PKT_SIZE;
   reply.num_sco_pkts = SCO_PKT_NUM;
-
+  Memory::CopyToEmu(ctrl.data_address + sizeof(hci_event), &reply, sizeof(reply));
-  memcpy(packet + sizeof(SHCIEventCommand), &reply, sizeof(hci_read_buffer_size_rp));
+  EnqueueReply(ctrl.ios_request, static_cast<s32>(sizeof(hci_event) + sizeof(reply)));
-  EnqueueReply(ctrl.ios_request,
-               static_cast<s32>(sizeof(SHCIEventCommand) + sizeof(hci_read_buffer_size_rp)));
 }
 
-void BluetoothReal::FakeSyncButtonEvent(CtrlBuffer& ctrl, const u8* payload, const u8 size)
+void BluetoothReal::FakeSyncButtonEvent(USB::V0IntrMessage& ctrl, const u8* payload, const u8 size)
 {
-  u8* packet = Memory::GetPointer(ctrl.m_payload_addr);
+  hci_event_hdr_t hci_event;
-  auto* hci_event = reinterpret_cast<hci_event_hdr_t*>(packet);
+  Memory::CopyFromEmu(&hci_event, ctrl.data_address, sizeof(hci_event));
-  hci_event->event = HCI_EVENT_VENDOR;
+  hci_event.event = HCI_EVENT_VENDOR;
-  hci_event->length = size;
+  hci_event.length = size;
-  memcpy(packet + sizeof(hci_event_hdr_t), payload, size);
+  Memory::CopyToEmu(ctrl.data_address, &hci_event, sizeof(hci_event));
-  EnqueueReply(ctrl.ios_request, static_cast<s32>(sizeof(hci_event_hdr_t) + size));
+  Memory::CopyToEmu(ctrl.data_address + sizeof(hci_event), payload, size);
+  EnqueueReply(ctrl.ios_request, static_cast<s32>(sizeof(hci_event) + size));
 }
 
 // When the red sync button is pressed, a HCI event is generated:
 //   > HCI Event: Vendor (0xff) plen 1
 //   08
 // This causes the emulated software to perform a BT inquiry and connect to found Wiimotes.
-void BluetoothReal::FakeSyncButtonPressedEvent(CtrlBuffer& ctrl)
+void BluetoothReal::FakeSyncButtonPressedEvent(USB::V0IntrMessage& ctrl)
 {
   NOTICE_LOG(IOS_WIIMOTE, "Faking 'sync button pressed' (0x08) event packet");
   const u8 payload[1] = {0x08};
@@ -451,7 +453,7 @@ void BluetoothReal::FakeSyncButtonPressedEvent(CtrlBuffer& ctrl)
 }
 
 // When the red sync button is held for 10 seconds, a HCI event with payload 09 is sent.
-void BluetoothReal::FakeSyncButtonHeldEvent(CtrlBuffer& ctrl)
+void BluetoothReal::FakeSyncButtonHeldEvent(USB::V0IntrMessage& ctrl)
 {
   NOTICE_LOG(IOS_WIIMOTE, "Faking 'sync button held' (0x09) event packet");
   const u8 payload[1] = {0x09};
@@ -565,7 +567,8 @@ void BluetoothReal::TransferThread()
 // The callbacks are called from libusb code on a separate thread.
 void BluetoothReal::CommandCallback(libusb_transfer* tr)
 {
-  const std::unique_ptr<CtrlMessage> cmd(static_cast<CtrlMessage*>(tr->user_data));
+  const std::unique_ptr<USB::CtrlMessage> cmd(static_cast<USB::CtrlMessage*>(tr->user_data));
+  const std::unique_ptr<u8[]> buffer(tr->buffer);
   if (tr->status != LIBUSB_TRANSFER_COMPLETED && tr->status != LIBUSB_TRANSFER_NO_DEVICE)
   {
     ERROR_LOG(IOS_WIIMOTE, "libusb command transfer failed, status: 0x%02x", tr->status);
@@ -580,13 +583,13 @@ void BluetoothReal::CommandCallback(libusb_transfer* tr)
   {
     s_showed_failed_transfer.Clear();
   }
-
+  cmd->FillBuffer(libusb_control_transfer_get_data(tr), tr->actual_length);
   EnqueueReply(cmd->ios_request, tr->actual_length, 0, CoreTiming::FromThread::NON_CPU);
 }
 
 void BluetoothReal::TransferCallback(libusb_transfer* tr)
 {
-  const std::unique_ptr<CtrlBuffer> ctrl(static_cast<CtrlBuffer*>(tr->user_data));
+  const std::unique_ptr<USB::V0IntrMessage> ctrl(static_cast<USB::V0IntrMessage*>(tr->user_data));
   if (tr->status != LIBUSB_TRANSFER_COMPLETED && tr->status != LIBUSB_TRANSFER_TIMED_OUT &&
       tr->status != LIBUSB_TRANSFER_NO_DEVICE)
   {
@@ -624,7 +627,6 @@ void BluetoothReal::TransferCallback(libusb_transfer* tr)
       s_need_reset_keys.Set();
     }
   }
-
   EnqueueReply(ctrl->ios_request, tr->actual_length, 0, CoreTiming::FromThread::NON_CPU);
 }
 }  // namespace Device

Source/Core/Core/IOS/USB/Bluetooth/BTReal.h

@@ -15,6 +15,7 @@
 #include "Common/Timer.h"
 #include "Core/IOS/IPC.h"
 #include "Core/IOS/USB/Bluetooth/BTBase.h"
+#include "Core/IOS/USB/USBV0.h"
 
 class PointerWrap;
 struct libusb_context;
@@ -85,11 +86,11 @@ private:
   void SendHCIResetCommand();
   void SendHCIDeleteLinkKeyCommand();
   bool SendHCIStoreLinkKeyCommand();
-  void FakeVendorCommandReply(CtrlBuffer& ctrl);
+  void FakeVendorCommandReply(USB::V0IntrMessage& ctrl);
-  void FakeReadBufferSizeReply(CtrlBuffer& ctrl);
+  void FakeReadBufferSizeReply(USB::V0IntrMessage& ctrl);
-  void FakeSyncButtonEvent(CtrlBuffer& ctrl, const u8* payload, u8 size);
+  void FakeSyncButtonEvent(USB::V0IntrMessage& ctrl, const u8* payload, u8 size);
-  void FakeSyncButtonPressedEvent(CtrlBuffer& ctrl);
+  void FakeSyncButtonPressedEvent(USB::V0IntrMessage& ctrl);
-  void FakeSyncButtonHeldEvent(CtrlBuffer& ctrl);
+  void FakeSyncButtonHeldEvent(USB::V0IntrMessage& ctrl);
 
   void LoadLinkKeys();
   void SaveLinkKeys();

Source/Core/Core/IOS/USB/Common.cpp

@@ -0,0 +1,31 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "Core/IOS/USB/Common.h"
+#include "Common/Assert.h"
+#include "Common/CommonTypes.h"
+#include "Core/HW/Memmap.h"
+
+namespace IOS
+{
+namespace HLE
+{
+namespace USB
+{
+std::unique_ptr<u8[]> TransferCommand::MakeBuffer(const size_t size) const
+{
+  _assert_msg_(IOS_USB, data_address != 0, "Invalid data_address");
+  auto buffer = std::make_unique<u8[]>(size);
+  Memory::CopyFromEmu(buffer.get(), data_address, size);
+  return buffer;
+}
+
+void TransferCommand::FillBuffer(const u8* src, const size_t size) const
+{
+  _assert_msg_(IOS_USB, size == 0 || data_address != 0, "Invalid data_address");
+  Memory::CopyToEmu(data_address, src, size);
+}
+}  // namespace USB
+}  // namespace HLE
+}  // namespace IOS

Source/Core/Core/IOS/USB/Common.h

@@ -0,0 +1,114 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <cstddef>
+#include <memory>
+#include <vector>
+
+#include "Common/CommonTypes.h"
+#include "Core/IOS/Device.h"
+
+namespace IOS
+{
+namespace HLE
+{
+namespace USB
+{
+struct DeviceDescriptor
+{
+  u8 bLength;
+  u8 bDescriptorType;
+  u16 bcdUSB;
+  u8 bDeviceClass;
+  u8 bDeviceSubClass;
+  u8 bDeviceProtocol;
+  u8 bMaxPacketSize0;
+  u16 idVendor;
+  u16 idProduct;
+  u16 bcdDevice;
+  u8 iManufacturer;
+  u8 iProduct;
+  u8 iSerialNumber;
+  u8 bNumConfigurations;
+};
+
+struct ConfigDescriptor
+{
+  u8 bLength;
+  u8 bDescriptorType;
+  u16 wTotalLength;
+  u8 bNumInterfaces;
+  u8 bConfigurationValue;
+  u8 iConfiguration;
+  u8 bmAttributes;
+  u8 MaxPower;
+};
+
+struct InterfaceDescriptor
+{
+  u8 bLength;
+  u8 bDescriptorType;
+  u8 bInterfaceNumber;
+  u8 bAlternateSetting;
+  u8 bNumEndpoints;
+  u8 bInterfaceClass;
+  u8 bInterfaceSubClass;
+  u8 bInterfaceProtocol;
+  u8 iInterface;
+};
+
+struct EndpointDescriptor
+{
+  u8 bLength;
+  u8 bDescriptorType;
+  u8 bEndpointAddress;
+  u8 bmAttributes;
+  u16 wMaxPacketSize;
+  u8 bInterval;
+};
+
+struct TransferCommand
+{
+  Request ios_request;
+  u32 data_address = 0;
+
+  TransferCommand(const Request& ios_request_, u32 data_address_)
+      : ios_request(ios_request_), data_address(data_address_)
+  {
+  }
+  virtual ~TransferCommand() = default;
+  // Called after a transfer has completed and before replying to the transfer request.
+  virtual void OnTransferComplete() const {}
+  std::unique_ptr<u8[]> MakeBuffer(size_t size) const;
+  void FillBuffer(const u8* src, size_t size) const;
+};
+
+struct CtrlMessage : TransferCommand
+{
+  u8 request_type = 0;
+  u8 request = 0;
+  u16 value = 0;
+  u16 index = 0;
+  u16 length = 0;
+  using TransferCommand::TransferCommand;
+};
+
+struct BulkMessage : TransferCommand
+{
+  u16 length = 0;
+  u8 endpoint = 0;
+  using TransferCommand::TransferCommand;
+};
+
+struct IntrMessage : TransferCommand
+{
+  u16 length = 0;
+  u8 endpoint = 0;
+  using TransferCommand::TransferCommand;
+};
+}  // namespace USB
+}  // namespace HLE
+}  // namespace IOS

Source/Core/Core/IOS/USB/USBV0.cpp

@@ -0,0 +1,47 @@
+// Copyright 2016 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include <vector>
+
+#include "Common/CommonFuncs.h"
+#include "Common/CommonTypes.h"
+#include "Core/HW/Memmap.h"
+#include "Core/IOS/Device.h"
+#include "Core/IOS/USB/USBV0.h"
+
+namespace IOS
+{
+namespace HLE
+{
+namespace USB
+{
+V0CtrlMessage::V0CtrlMessage(const IOCtlVRequest& ioctlv)
+    : CtrlMessage(ioctlv, ioctlv.io_vectors[0].address)
+{
+  request_type = Memory::Read_U8(ioctlv.in_vectors[0].address);
+  request = Memory::Read_U8(ioctlv.in_vectors[1].address);
+  value = Common::swap16(Memory::Read_U16(ioctlv.in_vectors[2].address));
+  index = Common::swap16(Memory::Read_U16(ioctlv.in_vectors[3].address));
+  length = Common::swap16(Memory::Read_U16(ioctlv.in_vectors[4].address));
+}
+
+V0BulkMessage::V0BulkMessage(const IOCtlVRequest& ioctlv, bool long_length)
+    : BulkMessage(ioctlv, ioctlv.io_vectors[0].address)
+{
+  endpoint = Memory::Read_U8(ioctlv.in_vectors[0].address);
+  if (long_length)
+    length = Memory::Read_U32(ioctlv.in_vectors[1].address);
+  else
+    length = Memory::Read_U16(ioctlv.in_vectors[1].address);
+}
+
+V0IntrMessage::V0IntrMessage(const IOCtlVRequest& ioctlv)
+    : IntrMessage(ioctlv, ioctlv.io_vectors[0].address)
+{
+  endpoint = Memory::Read_U8(ioctlv.in_vectors[0].address);
+  length = Memory::Read_U16(ioctlv.in_vectors[1].address);
+}
+}  // namespace USB
+}  // namespace HLE
+}  // namespace IOS

Source/Core/Core/IOS/USB/USBV0.h

@@ -0,0 +1,45 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <cstddef>
+
+#include "Common/CommonTypes.h"
+#include "Core/IOS/USB/Common.h"
+
+// Used by early USB interfaces, such as /dev/usb/oh0 (except in IOS57, 58, 59) and /dev/usb/oh1.
+
+namespace IOS
+{
+namespace HLE
+{
+struct IOCtlVRequest;
+
+namespace USB
+{
+enum V0Requests
+{
+  IOCTLV_USBV0_CTRLMSG = 0,
+  IOCTLV_USBV0_BLKMSG = 1,
+  IOCTLV_USBV0_INTRMSG = 2,
+};
+
+struct V0CtrlMessage final : CtrlMessage
+{
+  explicit V0CtrlMessage(const IOCtlVRequest& ioctlv);
+};
+
+struct V0BulkMessage final : BulkMessage
+{
+  explicit V0BulkMessage(const IOCtlVRequest& ioctlv, bool long_length = false);
+};
+
+struct V0IntrMessage final : IntrMessage
+{
+  explicit V0IntrMessage(const IOCtlVRequest& ioctlv);
+};
+}  // namespace USB
+}  // namespace HLE
+}  // namespace IOS

Source/Core/Core/IOS/USB/USB_HIDv4.cpp

@@ -263,8 +263,7 @@ IPCCommandResult USB_HIDv4::IOCtlV(const IOCtlVRequest& request)
   return GetDefaultReply(IPC_SUCCESS);
 }
 
-void USB_HIDv4::ConvertDeviceToWii(WiiHIDDeviceDescriptor* dest,
+void USB_HIDv4::ConvertDeviceToWii(USB::DeviceDescriptor* dest, const libusb_device_descriptor* src)
-                                   const struct libusb_device_descriptor* src)
 {
   dest->bLength = src->bLength;
   dest->bDescriptorType = src->bDescriptorType;
@@ -282,23 +281,22 @@ void USB_HIDv4::ConvertDeviceToWii(WiiHIDDeviceDescriptor* dest,
   dest->bNumConfigurations = src->bNumConfigurations;
 }
 
-void USB_HIDv4::ConvertConfigToWii(WiiHIDConfigDescriptor* dest,
+void USB_HIDv4::ConvertConfigToWii(USB::ConfigDescriptor* dest, const libusb_config_descriptor* src)
-                                   const struct libusb_config_descriptor* src)
 {
-  memcpy(dest, src, sizeof(WiiHIDConfigDescriptor));
+  memcpy(dest, src, sizeof(USB::ConfigDescriptor));
   dest->wTotalLength = Common::swap16(dest->wTotalLength);
 }
 
-void USB_HIDv4::ConvertInterfaceToWii(WiiHIDInterfaceDescriptor* dest,
+void USB_HIDv4::ConvertInterfaceToWii(USB::InterfaceDescriptor* dest,
-                                      const struct libusb_interface_descriptor* src)
+                                      const libusb_interface_descriptor* src)
 {
-  memcpy(dest, src, sizeof(WiiHIDInterfaceDescriptor));
+  memcpy(dest, src, sizeof(USB::InterfaceDescriptor));
 }
 
-void USB_HIDv4::ConvertEndpointToWii(WiiHIDEndpointDescriptor* dest,
+void USB_HIDv4::ConvertEndpointToWii(USB::EndpointDescriptor* dest,
-                                     const struct libusb_endpoint_descriptor* src)
+                                     const libusb_endpoint_descriptor* src)
 {
-  memcpy(dest, src, sizeof(WiiHIDEndpointDescriptor));
+  memcpy(dest, src, sizeof(USB::EndpointDescriptor));
   dest->wMaxPacketSize = Common::swap16(dest->wMaxPacketSize);
 }
 
@@ -330,7 +328,7 @@ void USB_HIDv4::FillOutDevices(const IOCtlRequest& request)
 
     OffsetBuffer += 4;  // skip devNum for now
 
-    WiiHIDDeviceDescriptor wii_device;
+    USB::DeviceDescriptor wii_device;
     ConvertDeviceToWii(&wii_device, &desc);
     Memory::CopyToEmu(OffsetBuffer, &wii_device, wii_device.bLength);
     OffsetBuffer += Common::AlignUp(wii_device.bLength, 4);
@@ -344,7 +342,7 @@ void USB_HIDv4::FillOutDevices(const IOCtlRequest& request)
       // do not try to use usb devices with more than one interface, games can crash
       if (cRet == 0 && config->bNumInterfaces <= MAX_HID_INTERFACES)
       {
-        WiiHIDConfigDescriptor wii_config;
+        USB::ConfigDescriptor wii_config;
         ConvertConfigToWii(&wii_config, config);
         Memory::CopyToEmu(OffsetBuffer, &wii_config, wii_config.bLength);
         OffsetBuffer += Common::AlignUp(wii_config.bLength, 4);
@@ -361,7 +359,7 @@ void USB_HIDv4::FillOutDevices(const IOCtlRequest& request)
             if (interface->bInterfaceClass == LIBUSB_CLASS_HID)
               isHID = true;
 
-            WiiHIDInterfaceDescriptor wii_interface;
+            USB::InterfaceDescriptor wii_interface;
             ConvertInterfaceToWii(&wii_interface, interface);
             Memory::CopyToEmu(OffsetBuffer, &wii_interface, wii_interface.bLength);
             OffsetBuffer += Common::AlignUp(wii_interface.bLength, 4);
@@ -370,7 +368,7 @@ void USB_HIDv4::FillOutDevices(const IOCtlRequest& request)
             {
               const struct libusb_endpoint_descriptor* endpoint = &interface->endpoint[e];
 
-              WiiHIDEndpointDescriptor wii_endpoint;
+              USB::EndpointDescriptor wii_endpoint;
               ConvertEndpointToWii(&wii_endpoint, endpoint);
               Memory::CopyToEmu(OffsetBuffer, &wii_endpoint, wii_endpoint.bLength);
               OffsetBuffer += Common::AlignUp(wii_endpoint.bLength, 4);

Source/Core/Core/IOS/USB/USB_HIDv4.h

@@ -13,6 +13,7 @@
 #include "Common/CommonTypes.h"
 #include "Core/IOS/Device.h"
 #include "Core/IOS/IPC.h"
+#include "Core/IOS/USB/Common.h"
 
 // Forward declare things which we need from libusb header.
 // This prevents users of this file from indirectly pulling in libusb.
@@ -61,75 +62,16 @@ private:
     IOCTL_HID_CANCEL_INTERRUPT = 0x08,
   };
 
-  struct WiiHIDDeviceDescriptor
-  {
-    u8 bLength;
-    u8 bDescriptorType;
-    u16 bcdUSB;
-    u8 bDeviceClass;
-    u8 bDeviceSubClass;
-    u8 bDeviceProtocol;
-    u8 bMaxPacketSize0;
-    u16 idVendor;
-    u16 idProduct;
-    u16 bcdDevice;
-    u8 iManufacturer;
-    u8 iProduct;
-    u8 iSerialNumber;
-    u8 bNumConfigurations;
-    u8 pad[2];
-  };
-
-  struct WiiHIDConfigDescriptor
-  {
-    u8 bLength;
-    u8 bDescriptorType;
-    u16 wTotalLength;
-    u8 bNumInterfaces;
-    u8 bConfigurationValue;
-    u8 iConfiguration;
-    u8 bmAttributes;
-    u8 MaxPower;
-    u8 pad[3];
-  };
-
-  struct WiiHIDInterfaceDescriptor
-  {
-    u8 bLength;
-    u8 bDescriptorType;
-    u8 bInterfaceNumber;
-    u8 bAlternateSetting;
-    u8 bNumEndpoints;
-    u8 bInterfaceClass;
-    u8 bInterfaceSubClass;
-    u8 bInterfaceProtocol;
-    u8 iInterface;
-    u8 pad[3];
-  };
-
-  struct WiiHIDEndpointDescriptor
-  {
-    u8 bLength;
-    u8 bDescriptorType;
-    u8 bEndpointAddress;
-    u8 bmAttributes;
-    u16 wMaxPacketSize;
-    u8 bInterval;
-    u8 bRefresh;
-    u8 bSynchAddress;
-    u8 pad[1];
-  };
-
   u32 deviceCommandAddress;
   void FillOutDevices(const IOCtlRequest& request);
   int GetAvailableDevNum(u16 idVendor, u16 idProduct, u8 bus, u8 port, u16 check);
   bool ClaimDevice(libusb_device_handle* dev);
 
-  void ConvertDeviceToWii(WiiHIDDeviceDescriptor* dest, const libusb_device_descriptor* src);
+  void ConvertDeviceToWii(USB::DeviceDescriptor* dest, const libusb_device_descriptor* src);
-  void ConvertConfigToWii(WiiHIDConfigDescriptor* dest, const libusb_config_descriptor* src);
+  void ConvertConfigToWii(USB::ConfigDescriptor* dest, const libusb_config_descriptor* src);
-  void ConvertInterfaceToWii(WiiHIDInterfaceDescriptor* dest,
+  void ConvertInterfaceToWii(USB::InterfaceDescriptor* dest,
                              const libusb_interface_descriptor* src);
-  void ConvertEndpointToWii(WiiHIDEndpointDescriptor* dest, const libusb_endpoint_descriptor* src);
+  void ConvertEndpointToWii(USB::EndpointDescriptor* dest, const libusb_endpoint_descriptor* src);
 
   static void checkUsbUpdates(USB_HIDv4* hid);
   static void LIBUSB_CALL handleUsbUpdates(libusb_transfer* transfer);