@blackmagic-controller/core/dist/services/properties/default.js

An npm module for interfacing with the Blackmagic usb/bluetooth controllers

import { uint8ArrayToDataView } from '../../util.js';
export class DefaultPropertiesService {
    #device;
    #options;
    constructor(device, options) {
        this.#device = device;
        this.#options = options;
    }
    async getBatteryLevel() {
        if (this.#options.batteryReportId === null)
            return null;
        const val = await this.#device.getFeatureReport(this.#options.batteryReportId, 3);
        return val[2] / 100;
    }
    async getFirmwareVersion() {
        const val = await this.#device.getFeatureReport(this.#options.firmwareReportId, 8);
        const view = uint8ArrayToDataView(val);
        // Generate a semver format string
        return `${view.getUint8(5)}.${view.getUint8(6)}.${view.getUint8(7)}+${view.getUint32(1, true).toString(16)}`;
    }
    async getSerialNumber() {
        const val = await this.#device.getFeatureReport(this.#options.serialReportId, 33);
        return new TextDecoder('ascii').decode(val.subarray(1));
    }
}
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