24.08.2019

What Is Hid Keyboard Device Windows 10

What Is Hid Keyboard Device Windows 10 Rating: 4,9/5 1339 votes

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  1. What Is Hid Keyboard Device Windows 10
  • How can the answer be improved?
  • Keyboard and multiple devices in device manager Hello, everyone. I noticed a problem in my keyboard recently, but i'm not sure if it's really on the keyboard, and might be in the windows or software related.

A human interface device or HID is a type of computer device usually used by humans that takes input from humans and gives output to humans.

The term 'HID' most commonly refers to the USB-HID specification. The term was coined by Mike Van Flandern of Microsoft when he proposed that the USB committee create a Human Input Device class working group.[when?] The working group was renamed as the Human Interface Device class at the suggestion of Tom Schmidt of DEC because the proposed standard supported bi-directional communication.[when?]

HIDs for Output

Common HIDs

  • Keyboard & Refreshable braille display
  • Pointing devices: Mouse, Trackball, Touchpad, Pointing stick, Light pen
  • Joystick, Gamepad, Analog stick

Less common HIDs

  • Driving simulator devices and flight simulator devices: gear sticks, steering wheels, pedals
  • Wired glove (Nintendo Power Glove)
  • Surface computing device
  • Apple's Sudden Motion Sensor device
  • 1HID standard

HID standard[edit]

The HID standard was adopted primarily to enable innovation in PCinput devices and to simplify the process of installing such devices. Prior to the introduction of the HID concept, devices usually conformed to strictly defined protocols for mouse, keyboards and joysticks; for example, the standard mouse protocol at the time supported relative X- and Y-axis data and binary input for up to two buttons, with no legacy support. All hardware innovations necessitated either overloading the use of data in an existing protocol or the creation of custom device drivers and the evangelization of a new protocol to developers. By contrast, all HID-defined devices deliver self-describing packages that may contain any number of data types and formats. A single HID driver on a computer parses data and enables dynamic association of data I/O with application functionality, which has enabled rapid innovation and development, and prolific diversification of new human-interface devices.

A working committee with representatives from several prominent companies developed the HID standard. The list of participants appears in the 'Device Class Definition for Human Interface Devices (HID)'[1]document. The concept of a self-describing extensible protocol initially came from Mike Van Flandern and Manolito Adan while working on a project named 'Raptor' at Microsoft, and independently from Steve McGowan, who worked on a device protocol for Access Bus while at Forte. After comparing notes at a Consumer Game Developer Conference, Steve and Mike agreed to collaborate on a new standard for the emerging Universal Serial Bus (USB).

Working

The HID protocol has its limitations, but all modern mainstream operating systems will recognize standard USB HID devices, such as keyboards and mice, without needing a specialized driver. When installed, a message saying that 'A 'HID-compliant device' has been recognized' generally appears on screen. In comparison, this message does not usually appear for devices connected via the PS/2 6-pin DIN connectors which preceded USB. PS/2 does not typically support plug-and-play, which means that connecting a PS/2 keyboard or mouse with the computer powered on does not always work and may pose a hazard to the computer's motherboard. Likewise, the PS/2 standard does not support the HID protocol. The USB human interface device class describes a USB HID.

Components of the HID protocol[edit]

In the HID protocol, there are 2 entities: the 'host' and the 'device'. The device is the entity that directly interacts with a human, such as a keyboard or mouse. The host communicates with the device and receives input data from the device on actions performed by the human. Output data flows from the host to the device and then to the human. The most common example of a host is a PC but some cell phones and PDAs also can be hosts.

What Is Hid Keyboard Device Windows 10

The HID protocol makes implementation of devices very simple. Devices define their data packets and then present a 'HID descriptor' to the host. The HID descriptor is a hard coded array of bytes that describes the device's data packets. This includes: how many packets the device supports, the size of the packets, and the purpose of each byte and bit in the packet. For example, a keyboard with a calculator program button can tell the host that the button's pressed/released state is stored as the 2nd bit in the 6th byte in data packet number 4 (note: these locations are only illustrative and are device-specific). The device typically stores the HID descriptor in ROM and does not need to intrinsically understand or parse the HID descriptor. Some mouse and keyboard hardware in the market today is implemented using only an 8-bit CPU.

The host is expected to be a more complex entity than the device. The host needs to retrieve the HID descriptor from the device and parse it before it can fully communicate with the device. Parsing the HID descriptor can be complicated. Multiple operating systems are known to have shipped bugs in the device drivers responsible for parsing the HID descriptors years after the device drivers were originally released to the public.[citation needed] However, this complexity is the reason why rapid innovation with HID devices is possible.

The above mechanism describes what is known as HID 'report protocol'. Because it was understood that not all hosts would be capable of parsing HID descriptors, HID also defines 'boot protocol'. In boot protocol, only specific devices are supported with only specific features because fixed data packet formats are used. The HID descriptor is not used in this mode so innovation is limited. However, the benefit is that minimal functionality is still possible on hosts that otherwise would be unable to support HID. The only devices supported in boot protocol are

  • Keyboard – Any of the first 256 key codes ('Usages') defined in the HID Usage Tables, Usage Page 7 can be reported by a keyboard using the boot protocol, but most systems only handle a subset of these keys. Most systems support all 104 keys on the IBM AT-101 layout, plus the three extra keys designed for Microsoft Windows 95 (the left and right Windows key, and the Menu key). Many systems also support additional keys on basic western European 105-, Korean 106-, Brazilian ABNT 107- and Japanese DOS/V 109-key layouts. Buttons, knobs and keys that are not reported on Usage Page 7 are not available. For example, a particular US keyboard's QWERTY keys will function but the Calculator and Logoff keys will not because they are defined on Usage Page 12 and cannot be reported in boot protocol.
  • Mouse – Only the X-axis, Y-axis, and the first 3 buttons will be available. Any additional features on the mouse will not function.

One common usage of boot mode is during the first moments of a computer's boot up sequence. Directly configuring a computer's BIOS is often done using only boot mode.Sometimes a message will appear informing the user that the device has installed the correct driver and is now usable.

HID definition of a device[edit]

According to the HID specification, a device is described, during the report mode, as a set of controls or group of controls.Controls are matched by a field containing the data, and another containing a usage tag.Each usage tag is described in the spec as the constructor suggested use of the data described in the report mode.

Other protocols using HID[edit]

Since HID's original definition over USB, HID is now also used in other computer communication buses. This enables HID devices that traditionally were only found on USB to also be used on alternative buses. This is done since existing support for USB HID devices can typically be adapted much faster than having to invent an entirely new protocol to support mouse, keyboards, and the like. Known buses that use HID are:

  • Bluetooth HID – Used for mouse and keyboards that are connected via Bluetooth
  • Serial HID – Used in Microsoft's Windows Media Center PC remote control receivers.
  • ZigBee input device – ZigBee (RF4CE) supports HID devices through the ZigBee input device profile.
  • HID over I²C – Used for embedded devices in Microsoft Windows 8[2]
  • HOGP (HID over GATT) – Used for HID devices connected using Bluetooth low energy technology

See also[edit]

What Is Hid Keyboard Device Windows 10

References[edit]

  1. ^Device Class Definition for Human Interface Devices (HID): Firmware Specification -- Final 1/30/97. USB Implementer's Forum. 1997. Retrieved 2014-04-28.
  2. ^'HID over I2C'. Microsoft. Retrieved 2016-01-19.

External links[edit]

  • HID developers forum, USB.org
  • HID Device Class Definition 1.11 Specification, USB.org
  • HID Usage Tables 1.12 Specification, USB.org
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Human_interface_device&oldid=883954602'

Hello, everyone.
I noticed a problem in my keyboard recently, but i'm not sure if it's really on the keyboard, and might be in the windows or software related. The problem is that the keyboard randomly starts freezing, it's hard to explain with words, basically the keys do not operate in the way they should, i notice this problem usually when i'm playing games, where my 'W' that should move my character forward continuously. does not, instead of doing what it's supposed to do my character goes forward while freezing along the way. When i unplug, and plug it again on the USB port, even on a different one, the keybord start to operate normally again, but randomly shows this problem from time to time. It's not only with the 'W' key, was just an example.
I noticed something yesterday, i don't if it's supposed to be that way, and i can't find any information about, it's that on device manager it shows multiple devices on the keyboard section, when the device is connected, as it shows in the image below:
One more thing, is all of them looks like the same thing, but i'm not sure if they really are, image below:
If i uninstall all of them, except that one that i marked with purple, he is the 4th one in the first image, the keyboard still operates, i'm not sure if the problem is fixed by that, cause it does not happen all the time.
Now that i described everything, i want to ask 2 questions:
1) Showing these multiple devices is normal? Cause i plugged another keyboard, and it shows just 2 instead of 5, not sure but the 1st one in the first image is always there, even without not having any keyboard plugged. The other keyboard plugged, for tests, is just a normal one, and the one that i'm using and showing the 'problem' is a Multilaser Warrior TC196. I've also plugged my keyboard into another computer, and he creates instantly all 4 devices (I'm excluding the first one that is always there for some reason).
2) If it's not, there's anyway that i can uninstall all those 4 others, except the one marked with purple, without allowing the windows to reinstall them after reset? I don't really know if this 'multiple devices' is the problem, but i guess i could test uninstalling all of them, except the one that i mentioned and preventing the windows from reinstalling them somehow.
And if anyone has any another suggestion, already experienced this problem or similar, feel free to drop the suggestion here.
Thanks in advance
Alstreim.