keycodes-to-ps2-scan-codes

Convert Web API keyCodes to PS/2 keyboard scan codes (set 2).

Referenced from http://www.vetra.com/scancodes.html

Installation

npm i --save keycodes-to-ps2-scan-codes

Exports

getMakeBytes(keyCode: string): number[]

• Returns: a byte array to "make" the keypress for the specified keyCode. Throws if the keyCode is not mapped.
• Example:

  const { getMakeBytes } = require('keycodes-to-ps2-scan-codes')
  getMakeBytes('KeyA') // [ 0x1C ]
  getMakeBytes('End') // [ 0xE0, 0x69 ]
  getMakeBytes('IntlRo') // throws - IntlRo is a valid `keyCode`, but it is not mappable to PS/2

getBreakBytes(keyCode: string): number[]

• Returns: a byte array to "break" the keypress for the specified keyCode. Throws if the keyCode is not mapped.
• Example:

  const { getBreakBytes } = require('keycodes-to-ps2-scan-codes')
  getBreakBytes('KeyA') // [ 0xF0, 0x1C ]
  getBreakBytes('End') // [ 0xE0, 0xF0, 0x69 ]
  getBreakBytes('IntlRo') // throws - IntlRo is a valid `keyCode`, but it is not mappable to PS/2

keysToScanCodes: { [scanCode: string]: [number[], number[]] }

• Maps keyCodes to pairs of byte arrays, corresponding to the respective "make" and "break" commands.
• Example:

  const { keysToScanCodes } = require('keycodes-to-ps2-scan-codes')
  keysToScanCodes['KeyA'] // [ [ 0x1C ], [ 0xF0, 0x1C ] ]