48 lines
912 B
JavaScript
48 lines
912 B
JavaScript
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'use strict'
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// **********************************
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class Device {
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// bus is i2c-bus bus object
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constructor(bus, address, opts) {
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this.bus = bus
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this.address = address
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if (opts) {
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this.id = opts.id // must be unique within a bus
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this.desc = opts.desc
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}
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}
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// for devices needing a buffer/stream
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readRaw(length, buffer) {
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return this.bus.readRaw(this.address, length, buffer)
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}
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writeRaw(length, buffer) {
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return this.bus.writeRaw(this.address, length, buffer)
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}
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// both cmd and byte should be a single byte as a decimal or hex
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read(cmd) {
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return this.bus.read(this.address, cmd)
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}
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write(cmd, byte) {
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return this.bus.write(this.address, cmd, byte)
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}
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// for I2C devices that use a word length packackage
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read2(cmd) {
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return this.bus.read2(this.address, cmd)
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}
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write2(cmd, bytes) {
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return this.bus.write2(this.address, cmd, bytes)
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}
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}
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module.exports = {
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Device
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}
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