A device registry is a programmable area on an electronic device that provides information that a programmer can use to install and use the device with an operating system or additional hardware. This allows devices to communicate information with each other in order to complete tasks assigned by the user. For example, a programmer with a tablet can connect it to their desktop and ask the two to sync their data to update all files on both computers. Device registration makes it possible.
Enrolling a device allows a tablet to interact with a desktop computer.
Devices often have multiple registers dedicated to performing different functions. An important record is related to data. If the user wants to read and write data, she needs to know where to direct it. The data log provides information about how much space is available and what is on the device. With this, it is possible to move information on the device or transfer it. A smartphone, for example, can transfer driving directions to another device for added convenience.
A device record provides information that a programmer can use to install and use the device with an operating system or additional equipment.
Another type of device log is the control and status log. This allows the programmer to execute commands and also provides feedback. In the example of a user syncing a tablet and a desktop, this log is responsible for displaying the message that a sync is in progress, for example. If the scheduler tries to access the device, it will return an error because it is busy. Also, if there is a problem with your computer and you are unable to complete the transfer, the status log will indicate that something is wrong.
Each device record provides information about the logical address of the device so that an operating system or other computer can locate the device. The programmer can code this manually or an operating system can do the programming. When a photographer connects a digital camera to a computer to take photos from the memory card, for example, the computer will interact with the camera’s device registry to obtain the necessary information and set up the transfer. This allows anyone to use peripheral devices without the need for programming knowledge.
If something goes wrong with the device registration, it can lead to errors. Devices may return inaccurate information about their data or may be permanently locked in a “busy” or “error” state mode. These problems can be fixed by a programmer who can access the registry. The user may also need to replace components and reprogram the registry.
