Enum KeyboardUsage

#[non_exhaustive]
#[repr(u8)]
pub enum KeyboardUsage {
    KeyboardErrorRollOver = 1,
    KeyboardPOSTFail = 2,
    KeyboardErrorUndefined = 3,
    KeyboardAa = 4,
    KeyboardBb = 5,
    KeyboardCc = 6,
    KeyboardDd = 7,
    KeyboardEe = 8,
    KeyboardFf = 9,
    KeyboardGg = 10,
    KeyboardHh = 11,
    KeyboardIi = 12,
    KeyboardJj = 13,
    KeyboardKk = 14,
    KeyboardLl = 15,
    KeyboardMm = 16,
    KeyboardNn = 17,
    KeyboardOo = 18,
    KeyboardPp = 19,
    KeyboardQq = 20,
    KeyboardRr = 21,
    KeyboardSs = 22,
    KeyboardTt = 23,
    KeyboardUu = 24,
    KeyboardVv = 25,
    KeyboardWw = 26,
    KeyboardXx = 27,
    KeyboardYy = 28,
    KeyboardZz = 29,
    Keyboard1Exclamation = 30,
    Keyboard2At = 31,
    Keyboard3Hash = 32,
    Keyboard4Dollar = 33,
    Keyboard5Percent = 34,
    Keyboard6Caret = 35,
    Keyboard7Ampersand = 36,
    Keyboard8Asterisk = 37,
    Keyboard9OpenParens = 38,
    Keyboard0CloseParens = 39,
    KeyboardEnter = 40,
    KeyboardEscape = 41,
    KeyboardBackspace = 42,
    KeyboardTab = 43,
    KeyboardSpacebar = 44,
    KeyboardDashUnderscore = 45,
    KeyboardEqualPlus = 46,
    KeyboardOpenBracketBrace = 47,
    KeyboardCloseBracketBrace = 48,
    KeyboardBackslashBar = 49,
    KeyboardNonUSHash = 50,
    KeyboardSemiColon = 51,
    KeyboardSingleDoubleQuote = 52,
    KeyboardBacktickTilde = 53,
    KeyboardCommaLess = 54,
    KeyboardPeriodGreater = 55,
    KeyboardSlashQuestion = 56,
    KeyboardCapsLock = 57,
    KeyboardF1 = 58,
    KeyboardF2 = 59,
    KeyboardF3 = 60,
    KeyboardF4 = 61,
    KeyboardF5 = 62,
    KeyboardF6 = 63,
    KeyboardF7 = 64,
    KeyboardF8 = 65,
    KeyboardF9 = 66,
    KeyboardF10 = 67,
    KeyboardF11 = 68,
    KeyboardF12 = 69,
    KeyboardPrintScreen = 70,
    KeyboardScrollLock = 71,
    KeyboardPause = 72,
    KeyboardInsert = 73,
    KeyboardHome = 74,
    KeyboardPageUp = 75,
    KeyboardDelete = 76,
    KeyboardEnd = 77,
    KeyboardPageDown = 78,
    KeyboardRightArrow = 79,
    KeyboardLeftArrow = 80,
    KeyboardDownArrow = 81,
    KeyboardUpArrow = 82,
    KeypadNumLock = 83,
    KeypadDivide = 84,
    KeypadMultiply = 85,
    KeypadMinus = 86,
    KeypadPlus = 87,
    KeypadEnter = 88,
    Keypad1End = 89,
    Keypad2DownArrow = 90,
    Keypad3PageDown = 91,
    Keypad4LeftArrow = 92,
    Keypad5 = 93,
    Keypad6RightArrow = 94,
    Keypad7Home = 95,
    Keypad8UpArrow = 96,
    Keypad9PageUp = 97,
    Keypad0Insert = 98,
    KeypadPeriodDelete = 99,
    KeyboardNonUSSlash = 100,
    KeyboardApplication = 101,
    KeyboardPower = 102,
    KeypadEqual = 103,
    KeyboardF13 = 104,
    KeyboardF14 = 105,
    KeyboardF15 = 106,
    KeyboardF16 = 107,
    KeyboardF17 = 108,
    KeyboardF18 = 109,
    KeyboardF19 = 110,
    KeyboardF20 = 111,
    KeyboardF21 = 112,
    KeyboardF22 = 113,
    KeyboardF23 = 114,
    KeyboardF24 = 115,
    KeyboardExecute = 116,
    KeyboardHelp = 117,
    KeyboardMenu = 118,
    KeyboardSelect = 119,
    KeyboardStop = 120,
    KeyboardAgain = 121,
    KeyboardUndo = 122,
    KeyboardCut = 123,
    KeyboardCopy = 124,
    KeyboardPaste = 125,
    KeyboardFind = 126,
    KeyboardMute = 127,
    KeyboardVolumeUp = 128,
    KeyboardVolumeDown = 129,
    KeyboardLockingCapsLock = 130,
    KeyboardLockingNumLock = 131,
    KeyboardLockingScrollLock = 132,
    KeypadComma = 133,
    KeypadEqualSign = 134,
    KeyboardInternational1 = 135,
    KeyboardInternational2 = 136,
    KeyboardInternational3 = 137,
    KeyboardInternational4 = 138,
    KeyboardInternational5 = 139,
    KeyboardInternational6 = 140,
    KeyboardInternational7 = 141,
    KeyboardInternational8 = 142,
    KeyboardInternational9 = 143,
    KeyboardLANG1 = 144,
    KeyboardLANG2 = 145,
    KeyboardLANG3 = 146,
    KeyboardLANG4 = 147,
    KeyboardLANG5 = 148,
    KeyboardLANG6 = 149,
    KeyboardLANG7 = 150,
    KeyboardLANG8 = 151,
    KeyboardLANG9 = 152,
    KeyboardAlternateErase = 153,
    KeyboardSysReqAttention = 154,
    KeyboardCancel = 155,
    KeyboardClear = 156,
    KeyboardPrior = 157,
    KeyboardReturn = 158,
    KeyboardSeparator = 159,
    KeyboardOut = 160,
    KeyboardOper = 161,
    KeyboardClearAgain = 162,
    KeyboardCrSelProps = 163,
    KeyboardExSel = 164,
    Keypad00 = 176,
    Keypad000 = 177,
    ThousandsSeparator = 178,
    DecimalSeparator = 179,
    CurrencyUnit = 180,
    CurrencySubunit = 181,
    KeypadOpenParens = 182,
    KeypadCloseParens = 183,
    KeypadOpenBrace = 184,
    KeypadCloseBrace = 185,
    KeypadTab = 186,
    KeypadBackspace = 187,
    KeypadA = 188,
    KeypadB = 189,
    KeypadC = 190,
    KeypadD = 191,
    KeypadE = 192,
    KeypadF = 193,
    KeypadBitwiseXor = 194,
    KeypadLogicalXor = 195,
    KeypadModulo = 196,
    KeypadLeftShift = 197,
    KeypadRightShift = 198,
    KeypadBitwiseAnd = 199,
    KeypadLogicalAnd = 200,
    KeypadBitwiseOr = 201,
    KeypadLogicalOr = 202,
    KeypadColon = 203,
    KeypadHash = 204,
    KeypadSpace = 205,
    KeypadAt = 206,
    KeypadExclamation = 207,
    KeypadMemoryStore = 208,
    KeypadMemoryRecall = 209,
    KeypadMemoryClear = 210,
    KeypadMemoryAdd = 211,
    KeypadMemorySubtract = 212,
    KeypadMemoryMultiply = 213,
    KeypadMemoryDivide = 214,
    KeypadPositiveNegative = 215,
    KeypadClear = 216,
    KeypadClearEntry = 217,
    KeypadBinary = 218,
    KeypadOctal = 219,
    KeypadDecimal = 220,
    KeypadHexadecimal = 221,
    KeyboardLeftControl = 224,
    KeyboardLeftShift = 225,
    KeyboardLeftAlt = 226,
    KeyboardLeftGUI = 227,
    KeyboardRightControl = 228,
    KeyboardRightShift = 229,
    KeyboardRightAlt = 230,
    KeyboardRightGUI = 231,
    Reserved = 232,
}

KeyboardUsage describes the key codes to be used in implementing a USB keyboard.

The usage type of all key codes is Selectors, except for the modifier keys Keyboard Left Control to Keyboard Right GUI which are Dynamic Flags.

Reference: https://usb.org/sites/default/files/hut1_3_0.pdf (Section 10, page 88)

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

KeyboardErrorRollOver = 1

Keyboard ErrorRollOver (Footnote 1)

KeyboardPOSTFail = 2

Keyboard POSTFail (Footnote 1)

KeyboardErrorUndefined = 3

Keyboard ErrorUndefined (Footnote 1)

KeyboardAa = 4

Keyboard a and A (Footnote 2)

KeyboardBb = 5

Keyboard b and B

KeyboardCc = 6

Keyboard c and C (Footnote 2)

KeyboardDd = 7

Keyboard d and D

KeyboardEe = 8

Keyboard e and E

KeyboardFf = 9

Keyboard f and F

KeyboardGg = 10

Keyboard g and G

KeyboardHh = 11

Keyboard h and H

KeyboardIi = 12

Keyboard i and I

KeyboardJj = 13

Keyboard j and J

KeyboardKk = 14

Keyboard k and K

KeyboardLl = 15

Keyboard l and L

KeyboardMm = 16

Keyboard m and M (Footnote 2)

KeyboardNn = 17

Keyboard n and N

KeyboardOo = 18

Keyboard o and O (Footnote 2)

KeyboardPp = 19

Keyboard p and P (Footnote 2)

KeyboardQq = 20

Keyboard q and Q (Footnote 2)

KeyboardRr = 21

Keyboard r and R

KeyboardSs = 22

Keyboard s and S

KeyboardTt = 23

Keyboard t and T

KeyboardUu = 24

Keyboard u and U

KeyboardVv = 25

Keyboard v and V

KeyboardWw = 26

Keyboard w and W (Footnote 2)

KeyboardXx = 27

Keyboard x and X (Footnote 2)

KeyboardYy = 28

Keyboard y and Y (Footnote 2)

KeyboardZz = 29

Keyboard z and Z (Footnote 2)

Keyboard1Exclamation = 30

Keyboard 1 and ! (Footnote 2)

Keyboard2At = 31

Keyboard 2 and @ (Footnote 2)

Keyboard3Hash = 32

Keyboard 3 and # (Footnote 2)

Keyboard4Dollar = 33

Keyboard 4 and $ (Footnote 2)

Keyboard5Percent = 34

Keyboard 5 and % (Footnote 2)

Keyboard6Caret = 35

Keyboard 6 and ^ (Footnote 2)

Keyboard7Ampersand = 36

Keyboard 7 and & (Footnote 2)

Keyboard8Asterisk = 37

Keyboard 8 and * (Footnote 2)

Keyboard9OpenParens = 38

Keyboard 9 and ( (Footnote 2)

Keyboard0CloseParens = 39

Keyboard 0 and ) (Footnote 2)

KeyboardEnter = 40

Keyboard Return (ENTER) (Footnote 3)

(Footnote 3): Keyboard Enter and Keypad Enter generate different Usage codes.

KeyboardEscape = 41

Keyboard ESCAPE

KeyboardBackspace = 42

Keyboard DELETE (Backspace) (Footnote 4)

KeyboardTab = 43

Keyboard Tab

KeyboardSpacebar = 44

Keyboard Spacebar

KeyboardDashUnderscore = 45

Keyboard - and _ (Footnote 2)

KeyboardEqualPlus = 46

Keyboard = and + (Footnote 2)

KeyboardOpenBracketBrace = 47

Keyboard [ and { (Footnote 2)

KeyboardCloseBracketBrace = 48

Keyboard ] and } (Footnote 2)

KeyboardBackslashBar = 49

Keyboard \ and |

KeyboardNonUSHash = 50

Keyboard Non-US # and (Footnote 5)

KeyboardSemiColon = 51

Keyboard ; and : (Footnote 2)

KeyboardSingleDoubleQuote = 52

Keyboard ’ and “ (Footnote 2)

KeyboardBacktickTilde = 53

Keyboard ` and ~ (Footnote 2)

KeyboardCommaLess = 54

Keyboard , and < (Footnote 2)

KeyboardPeriodGreater = 55

Keyboard . and > (Footnote 2)

KeyboardSlashQuestion = 56

Keyboard / and ? (Footnote 2)

KeyboardCapsLock = 57

Keyboard Caps Lock (Footnote 6)

KeyboardF1 = 58

Keyboard F1

KeyboardF2 = 59

Keyboard F2

KeyboardF3 = 60

Keyboard F3

KeyboardF4 = 61

Keyboard F4

KeyboardF5 = 62

Keyboard F5

KeyboardF6 = 63

Keyboard F6

KeyboardF7 = 64

Keyboard F7

KeyboardF8 = 65

Keyboard F8

KeyboardF9 = 66

Keyboard F9

KeyboardF10 = 67

Keyboard F10

KeyboardF11 = 68

Keyboard F11

KeyboardF12 = 69

Keyboard F12

KeyboardPrintScreen = 70

Keyboard PrintScreen (Footnote 7)

KeyboardScrollLock = 71

Keyboard ScrollLock (Footnote 6)

KeyboardPause = 72

Keyboard Pause (Footnote 7)

KeyboardInsert = 73

Keyboard Insert (Footnote 7)

KeyboardHome = 74

Keyboard Home (Footnote 7)

KeyboardPageUp = 75

Keyboard PageUp (Footnote 7)

KeyboardDelete = 76

Keyboard Delete Forward (Footnote 7) (Footnote 8)

KeyboardEnd = 77

Keyboard End (Footnote 7)

KeyboardPageDown = 78

Keyboard PageDown (Footnote 7)

KeyboardRightArrow = 79

Keyboard RightArrow (Footnote 7)

KeyboardLeftArrow = 80

Keyboard LeftArrow (Footnote 7)

KeyboardDownArrow = 81

Keyboard DownArrow (Footnote 7)

KeyboardUpArrow = 82

Keyboard UpArrow (Footnote 7)

KeypadNumLock = 83

Keypad Num Lock and Clear (Footnote 6)

KeypadDivide = 84

Keypad / (Footnote 7)

KeypadMultiply = 85

Keypad *

KeypadMinus = 86

Keypad -

KeypadPlus = 87

Keypad +

KeypadEnter = 88

Keypad ENTER (Footnote 3)

Keypad1End = 89

Keypad 1 and End

Keypad2DownArrow = 90

Keypad 2 and DownArrow

Keypad3PageDown = 91

Keypad 3 and PageDown

Keypad4LeftArrow = 92

Keypad 4 and LeftArrow

Keypad5 = 93

Keypad 5

Keypad6RightArrow = 94

Keypad 6 and RightArrow

Keypad7Home = 95

Keypad 7 and Home

Keypad8UpArrow = 96

Keypad 8 and UpArrow

Keypad9PageUp = 97

Keypad 9 and PageUp

Keypad0Insert = 98

Keypad 0 and Insert

KeypadPeriodDelete = 99

Keypad . and Delete

KeyboardNonUSSlash = 100

Keyboard Non-US \ and | (Footnote 9) (Footnote 10)

KeyboardApplication = 101

Keyboard Application (Footnote 11)

KeyboardPower = 102

Keyboard Power (Footnote 1)

KeypadEqual = 103

Keypad =

KeyboardF13 = 104

Keyboard F13

KeyboardF14 = 105

Keyboard F14

KeyboardF15 = 106

Keyboard F15

KeyboardF16 = 107

Keyboard F16

KeyboardF17 = 108

Keyboard F17

KeyboardF18 = 109

Keyboard F18

KeyboardF19 = 110

Keyboard F19

KeyboardF20 = 111

Keyboard F20

KeyboardF21 = 112

Keyboard F21

KeyboardF22 = 113

Keyboard F22

KeyboardF23 = 114

Keyboard F23

KeyboardF24 = 115

Keyboard F24

KeyboardExecute = 116

Keyboard Execute

KeyboardHelp = 117

Keyboard Help

KeyboardMenu = 118

Keyboard Menu

KeyboardSelect = 119

Keyboard Select

KeyboardStop = 120

Keyboard Stop

KeyboardAgain = 121

Keyboard Again

KeyboardUndo = 122

Keyboard Undo

KeyboardCut = 123

Keyboard Cut

KeyboardCopy = 124

Keyboard Copy

KeyboardPaste = 125

Keyboard Paste

KeyboardFind = 126

Keyboard Find

KeyboardMute = 127

Keyboard Mute

KeyboardVolumeUp = 128

Keyboard Volume Up

KeyboardVolumeDown = 129

Keyboard Volume Down

KeyboardLockingCapsLock = 130

Keyboad Locking Caps Lock (Footnote 12)

KeyboardLockingNumLock = 131

Keyboad Locking Num Lock (Footnote 12)

KeyboardLockingScrollLock = 132

Keyboad Locking Scroll Lock (Footnote 12)

KeypadComma = 133

Keypad Comma (Footnote 13)

KeypadEqualSign = 134

Keypad Equal Sign (Footnote 14)

KeyboardInternational1 = 135

Keyboard International1 (Footnote 15) (Footnote 16)

KeyboardInternational2 = 136

Keyboard International2 (Footnote 17)

KeyboardInternational3 = 137

Keyboard International3 (Footnote 18)

KeyboardInternational4 = 138

Keyboard International4 (Footnote 19)

KeyboardInternational5 = 139

Keyboard International5 (Footnote 20)

KeyboardInternational6 = 140

Keyboard International6 (Footnote 21)

KeyboardInternational7 = 141

Keyboard International7 (Footnote 22)

KeyboardInternational8 = 142

Keyboard International8 (Footnote 23)

KeyboardInternational9 = 143

Keyboard International9 (Footnote 23)

KeyboardLANG1 = 144

Keyboard LANG1 (Footnote 24)

KeyboardLANG2 = 145

Keyboard LANG2 (Footnote 25)

KeyboardLANG3 = 146

Keyboard LANG3 (Footnote 26)

KeyboardLANG4 = 147

Keyboard LANG4 (Footnote 27)

KeyboardLANG5 = 148

Keyboard LANG5 (Footnote 28)

KeyboardLANG6 = 149

Keyboard LANG6 (Footnote 29)

KeyboardLANG7 = 150

Keyboard LANG7 (Footnote 29)

KeyboardLANG8 = 151

Keyboard LANG8 (Footnote 29)

KeyboardLANG9 = 152

Keyboard LANG9 (Footnote 29)

KeyboardAlternateErase = 153

Keyboard Alternate Erase (Footnote 30)

KeyboardSysReqAttention = 154

Keyboard SysReq/Attention (Footnote 7)

KeyboardCancel = 155

Keyboard Cancel

KeyboardClear = 156

Keyboard Clear

KeyboardPrior = 157

Keyboard Prior

KeyboardReturn = 158

Keyboard Return

KeyboardSeparator = 159

Keyboard Separator

KeyboardOut = 160

Keyboard Out

KeyboardOper = 161

Keyboard Oper

KeyboardClearAgain = 162

Keyboard Clear/Again

KeyboardCrSelProps = 163

Keyboard CrSel/Props

KeyboardExSel = 164

Keyboard ExSel

Keypad00 = 176

Keypad 00

Keypad000 = 177

Keypad 000

ThousandsSeparator = 178

Thousands Separator (Footnote 31)

DecimalSeparator = 179

Decimal Separator (Footnote 31)

CurrencyUnit = 180

Currency Unit (Footnote 32)

CurrencySubunit = 181

Currency Sub-unit (Footnote 32)

KeypadOpenParens = 182

Keypad (

KeypadCloseParens = 183

Keypad )

KeypadOpenBrace = 184

Keypad {

KeypadCloseBrace = 185

Keypad }

KeypadTab = 186

Keypad Tab

KeypadBackspace = 187

Keypad Backspace

KeypadA = 188

Keypad A

KeypadB = 189

Keypad B

KeypadC = 190

Keypad C

KeypadD = 191

Keypad D

KeypadE = 192

Keypad E

KeypadF = 193

Keypad F

KeypadBitwiseXor = 194

Keypad XOR

KeypadLogicalXor = 195

Keypad ^

KeypadModulo = 196

Keypad %

KeypadLeftShift = 197

Keypad <

KeypadRightShift = 198

Keypad >

KeypadBitwiseAnd = 199

Keypad &

KeypadLogicalAnd = 200

Keypad &&

KeypadBitwiseOr = 201

Keypad |

KeypadLogicalOr = 202

Keypad ||

KeypadColon = 203

Keypad :

KeypadHash = 204

Keypad #

KeypadSpace = 205

Keypad Space

KeypadAt = 206

Keypad @

KeypadExclamation = 207

Keypad !

KeypadMemoryStore = 208

Keypad Memory Store

KeypadMemoryRecall = 209

Keypad Memory Recall

KeypadMemoryClear = 210

Keypad Memory Clear

KeypadMemoryAdd = 211

Keypad Memory Add

KeypadMemorySubtract = 212

Keypad Memory Subtract

KeypadMemoryMultiply = 213

Keypad Memory Multiply

KeypadMemoryDivide = 214

Keypad Memory Divice

KeypadPositiveNegative = 215

Keypad +/-

KeypadClear = 216

Keypad Clear

KeypadClearEntry = 217

Keypad Clear Entry

KeypadBinary = 218

Keypad Binary

KeypadOctal = 219

Keypad Octal

KeypadDecimal = 220

Keypad Decimal

KeypadHexadecimal = 221

Keypad Hexadecimal

KeyboardLeftControl = 224

Keyboard LeftControl

KeyboardLeftShift = 225

Keyboard LeftShift

KeyboardLeftAlt = 226

Keyboard LeftAlt

KeyboardLeftGUI = 227

Keyboard LeftGUI (Footnote 11) (Footnote 33)

KeyboardRightControl = 228

Keyboard RightControl

KeyboardRightShift = 229

Keyboard RightShift

KeyboardRightAlt = 230

Keyboard RightAlt

KeyboardRightGUI = 231

Keyboard RightGUI (Footnote 11) (Footnote 34)

Reserved = 232

Reserved keyboard values (used for all reserved / invalid values)

Trait Implementations

impl Clone for KeyboardUsage

fn clone(&self) -> KeyboardUsage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for KeyboardUsage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<u8> for KeyboardUsage

fn from(k: u8) -> Self

Converts to this type from the input type.

impl PartialEq for KeyboardUsage

fn eq(&self, other: &KeyboardUsage) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for KeyboardUsage

impl Eq for KeyboardUsage

impl StructuralPartialEq for KeyboardUsage