bool HIDDeviceManager::Enumerate(HIDEnumerateVisitor* enumVisitor)
{
HDEVINFO hdevInfoSet;
SP_DEVICE_INTERFACE_DATA interfaceData;
interfaceData.cbSize = sizeof(interfaceData);
// Get handle to info data set describing all available HIDs.
hdevInfoSet = SetupDiGetClassDevsA(&HidGuid, NULL, NULL, DIGCF_INTERFACEDEVICE | DIGCF_PRESENT);
if (hdevInfoSet == INVALID_HANDLE_VALUE)
return false;
for(int deviceIndex = 0;
SetupDiEnumDeviceInterfaces(hdevInfoSet, NULL, &HidGuid, deviceIndex, &interfaceData);
deviceIndex++)
{
// For each device, we extract its file path and open it to get attributes,
// such as vendor and product id. If anything goes wrong, we move onto next device.
HIDDevicePathWrapper pathWrapper;
if (!pathWrapper.InitPathFromInterfaceData(hdevInfoSet, &interfaceData))
continue;
// Look for the device to check if it is already opened.
Ptr<DeviceCreateDesc> existingDevice = Manager->FindDevice(pathWrapper.GetPath());
// if device exists and it is opened then most likely the CreateHIDFile
// will fail; therefore, we just set Enumerated to 'true' and continue.
if (existingDevice && existingDevice->pDevice)
{
existingDevice->Enumerated = true;
continue;
}
// open device in non-exclusive mode for detection...
HANDLE hidDev = CreateHIDFile(pathWrapper.GetPath(), false);
if (hidDev == INVALID_HANDLE_VALUE)
continue;
HIDDeviceDesc devDesc;
devDesc.Path = pathWrapper.GetPath();
if (initVendorProductVersion(hidDev, &devDesc) &&
enumVisitor->MatchVendorProduct(devDesc.VendorId, devDesc.ProductId) &&
initUsage(hidDev, &devDesc))
{
initStrings(hidDev, &devDesc);
// Construct minimal device that the visitor callback can get feature reports from.
Win32::HIDDevice device(this, hidDev);
enumVisitor->Visit(device, devDesc);
}
::CloseHandle(hidDev);
}
SetupDiDestroyDeviceInfoList(hdevInfoSet);
return true;
}
bool HIDDeviceManager::Enumerate(HIDEnumerateVisitor* enumVisitor)
{
if (!initializeManager())
{
return false;
}
CFSetRef deviceSet = IOHIDManagerCopyDevices(HIDManager);
CFIndex deviceCount = CFSetGetCount(deviceSet);
// Allocate a block of memory and read the set into it.
IOHIDDeviceRef* devices = (IOHIDDeviceRef*) OVR_ALLOC(sizeof(IOHIDDeviceRef) * deviceCount);
CFSetGetValues(deviceSet, (const void **) devices);
// Iterate over devices.
for (CFIndex deviceIndex = 0; deviceIndex < deviceCount; deviceIndex++)
{
IOHIDDeviceRef hidDev = devices[deviceIndex];
if (!hidDev)
{
continue;
}
HIDDeviceDesc devDesc;
if (getPath(hidDev, &(devDesc.Path)) &&
initVendorProductVersion(hidDev, &devDesc) &&
enumVisitor->MatchVendorProduct(devDesc.VendorId, devDesc.ProductId) &&
initUsage(hidDev, &devDesc))
{
initStrings(hidDev, &devDesc);
initSerialNumber(hidDev, &devDesc);
// Construct minimal device that the visitor callback can get feature reports from.
OSX::HIDDevice device(this, hidDev);
enumVisitor->Visit(device, devDesc);
}
}
OVR_FREE(devices);
CFRelease(deviceSet);
return true;
}
bool HIDDeviceManager::getFullDesc(HANDLE hidDev, HIDDeviceDesc* desc) const
{
if (!initVendorProductVersion(hidDev, desc))
{
return false;
}
if (!initUsage(hidDev, desc))
{
return false;
}
initStrings(hidDev, desc);
return true;
}
bool HIDDeviceManager::getFullDesc(IOHIDDeviceRef device, HIDDeviceDesc* desc)
{
if (!initVendorProductVersion(device, desc))
{
return false;
}
if (!initUsage(device, desc))
{
return false;
}
if (!initSerialNumber(device, desc))
{
return false;
}
initStrings(device, desc);
return true;
}
//-----------------------------------------------------------------------------
bool HIDDeviceManager::getFullDesc(hid_device_info* device, HIDDeviceDesc* desc)
{
if (!initVendorProductVersion(device, desc))
{
return false;
}
desc->SerialNumber = String(device->serial_number);
desc->Manufacturer = String(device->manufacturer_string);
desc->Product = String(device->product_string);
/*
if (!getStringProperty(device, "serial", &(desc->SerialNumber)))
{
return false;
}
getStringProperty(device, "manufacturer", &(desc->Manufacturer));
getStringProperty(device, "product", &(desc->Product));
*/
return true;
}
bool HIDDeviceManager::Enumerate(HIDEnumerateVisitor* enumVisitor)
{
if (!initializeManager())
{
return false;
}
CFSetRef deviceSet = IOHIDManagerCopyDevices(HIDManager);
if (!deviceSet)
return false;
CFIndex deviceCount = CFSetGetCount(deviceSet);
// Allocate a block of memory and read the set into it.
IOHIDDeviceRef* devices = (IOHIDDeviceRef*) OVR_ALLOC(sizeof(IOHIDDeviceRef) * deviceCount);
CFSetGetValues(deviceSet, (const void **) devices);
// Iterate over devices.
for (CFIndex deviceIndex = 0; deviceIndex < deviceCount; deviceIndex++)
{
IOHIDDeviceRef hidDev = devices[deviceIndex];
if (!hidDev)
{
continue;
}
HIDDeviceDesc devDesc;
if (getPath(hidDev, &(devDesc.Path)) &&
initVendorProductVersion(hidDev, &devDesc) &&
enumVisitor->MatchVendorProduct(devDesc.VendorId, devDesc.ProductId) &&
initUsage(hidDev, &devDesc))
{
initStrings(hidDev, &devDesc);
initSerialNumber(hidDev, &devDesc);
// Look for the device to check if it is already opened.
Ptr<DeviceCreateDesc> existingDevice = DevManager->FindHIDDevice(devDesc, true);
// if device exists and it is opened then most likely the CreateHIDFile
// will fail; therefore, we just set Enumerated to 'true' and continue.
if (existingDevice && existingDevice->pDevice)
{
existingDevice->Enumerated = true;
continue;
}
// open the device temporarily for startup communication
if (IOHIDDeviceOpen(hidDev, kIOHIDOptionsTypeSeizeDevice) == kIOReturnSuccess)
{
// Construct minimal device that the visitor callback can get feature reports from.
OSX::HIDDevice device(this, hidDev);
enumVisitor->Visit(device, devDesc);
IOHIDDeviceClose(hidDev, kIOHIDOptionsTypeSeizeDevice);
}
}
}
OVR_FREE(devices);
CFRelease(deviceSet);
return true;
}
