private void NativeDiskDisappeared(IntPtr disk, IntPtr context)
{
if (this.DeviceDisappeared == null)
{
// if no-one subscribed to this event, do nothing
return;
}
IntPtr device = DiskArbitration.DADiskCopyIOMedia(disk);
IntPtr propertiesRef = DiskArbitration.DADiskCopyDescription(disk);
NSDictionary properties = new NSDictionary(propertiesRef);
DeviceArguments deviceArguments = new DeviceArguments(properties, this);
if (properties.HasKey("DADeviceProtocol") && properties.GetStringValue("DADeviceProtocol") == "USB")
{
OsxUsbData usb = new OsxUsbData(device);
deviceArguments.UsbInfo = usb;
}
IOKit.IOObjectRelease(device);
this.DeviceDisappeared(this, deviceArguments);
GC.KeepAlive(this);
}
private void NativeDiskChanged(IntPtr disk, IntPtr keys, IntPtr context)
{
if (this.DeviceChanged == null)
{
// if no-one subscribed to this event, do nothing
return;
}
IntPtr device = DiskArbitration.DADiskCopyIOMedia(disk);
IntPtr propertiesRef = DiskArbitration.DADiskCopyDescription(disk);
// using MonoMac we can get a managed NSDictionary from the pointer
NSDictionary properties = new NSDictionary(propertiesRef);
DeviceArguments deviceArguments = new DeviceArguments(properties, this);
if (properties.HasKey("DADeviceProtocol") && properties.GetStringValue("DADeviceProtocol") == "USB")
{
OsxUsbData usb = new OsxUsbData(device);
deviceArguments.UsbInfo = usb;
}
IOKit.IOObjectRelease(device);
// trigger the public event for any subscribers
this.DeviceChanged(this, deviceArguments);
GC.KeepAlive(this);
}
internal OsxUsbData(IntPtr registry_entry)
{
// 1st approach - get IODeviceTree's parent locationID, then find by location ID
/*string path = properties.GetStringValue ("DAMediaPath");
* IntPtr entry = IORegistryEntryFromPath (IntPtr.Zero, path);
* CFString s = new CFString ("locationID");
* IntPtr plane = new CFString ("IODeviceTree").Handle;
* IntPtr parent = IntPtr.Zero;
* IORegistryEntryGetParentEntry (entry, "IODeviceTree", out parent);
* if (parent != IntPtr.Zero) {
* IntPtr ptr = IORegistryEntryCreateCFProperty (parent, s.Handle, IntPtr.Zero, 0);
* CFShow (ptr);
* }*/
// TODO recursive find
// 2nd approach - walk the tree (which one?) up until we find
// a idVendor - at worst, up to the root
IntPtr cf_ref;
// populate properties from the usb device info
cf_ref = IOKit.GetUsbProperty(registry_entry, "idVendor");
if (cf_ref != IntPtr.Zero)
{
Int32 num;
CoreFoundation.CFNumberGetValue(cf_ref, 3, out num);
VendorId = (uint)num;
}
cf_ref = IOKit.GetUsbProperty(registry_entry, "idProduct");
if (cf_ref != IntPtr.Zero)
{
Int32 num;
CoreFoundation.CFNumberGetValue(cf_ref, 3, out num);
ProductId = (uint)num;
}
cf_ref = IOKit.GetUsbProperty(registry_entry, "USB Vendor Name");
if (cf_ref != IntPtr.Zero)
{
VendorName = new CFString(cf_ref).ToString();
}
cf_ref = IOKit.GetUsbProperty(registry_entry, "USB Product Name");
if (cf_ref != IntPtr.Zero)
{
ProductName = new CFString(cf_ref).ToString();
}
cf_ref = IOKit.GetUsbProperty(registry_entry, "USB Serial Number");
if (cf_ref != IntPtr.Zero)
{
UsbSerial = new CFString(cf_ref).ToString();
}
}
public static IntPtr GetUsbProperty(IntPtr registry_entry, CFString key)
{
if (registry_entry == IntPtr.Zero || key.Handle == IntPtr.Zero)
{
return(IntPtr.Zero);
}
IntPtr parent_entry = IOKit.FindInParent(registry_entry, key);
if (parent_entry == IntPtr.Zero)
{
return(IntPtr.Zero);
}
IntPtr ptr = IORegistryEntryCreateCFProperty(parent_entry, key.Handle, IntPtr.Zero, 0);
//CFShow (ptr);
return(ptr);
}
