Interface IDevice
Represents properties and methods common to all devices.
public interface IDeviceProperties
LastAccessed
The time when this device was last accessed.
DateTime LastAccessed { get; }Property Value
- DateTime
Remarks
Certain Yubico devices, such as the YubiKey, require a short delay before switching to and communicating with a different USB interface. This is called the reclaim timeout. The YubiKey SDK must keep track of the last interface to have been accessed and when in order to properly implement this delay.
ParentDeviceId
A unique identifier corresponding to the parent USB composite device, if available.
string? ParentDeviceId { get; }Property Value
- string
Remarks
Certain devices that this SDK works with, like the YubiKey, are presented to the operating system as a composite device. This means that, to the operating system, multiple devices may be detected even though you have only plugged in one physical device. OSes that do this still expose a single "composite" device in their device tree. This is the common parent across all of the sub-devices.
Keeping track of this information, if available, can greatly increase the SDK's performance when it attempts to reconstruct the single, composite device out of all of the sub-devices. This isn't always possible, however, as the OS services that we use to enumerate the sub-devices don't always provide much information about its parent device. macOS and Windows 7, for example, cannot provide parent information for smart card devices. In those cases, we'll have to make do and attempt to match these devices some other way.
Path
Gets the platform defined path to the device.
string Path { get; }Property Value
- string
Remarks
The exact meaning of this property may vary between operating systems and device types. The SDK treats this property as an opaque value and only uses it to check for uniqueness across device instances. It is strongly recommended that you do not take a dependency on the exact format or meaning of the value of this property.