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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview Interface for representing a low-level gnubby device.
*/
'use strict';
/**
* Low level gnubby 'driver'. One per physical USB device.
* @interface
*/
function GnubbyDevice() {}
// Commands of the USB interface.
/** Echo data through local processor only */
GnubbyDevice.CMD_PING = 0x81;
/** Perform reset action and read ATR string */
GnubbyDevice.CMD_ATR = 0x82;
/** Send raw APDU */
GnubbyDevice.CMD_APDU = 0x83;
/** Send lock channel command */
GnubbyDevice.CMD_LOCK = 0x84;
/** Obtain system information record */
GnubbyDevice.CMD_SYSINFO = 0x85;
/** Obtain an unused channel ID */
GnubbyDevice.CMD_INIT = 0x86;
/** Control prompt flashing */
GnubbyDevice.CMD_PROMPT = 0x87;
/** Send device identification wink */
GnubbyDevice.CMD_WINK = 0x88;
/** USB test */
GnubbyDevice.CMD_USB_TEST = 0xb9;
/** Device Firmware Upgrade */
GnubbyDevice.CMD_DFU = 0xba;
/** Protocol resync command */
GnubbyDevice.CMD_SYNC = 0xbc;
/** Error response */
GnubbyDevice.CMD_ERROR = 0xbf;
// Low-level error codes.
/** No error */
GnubbyDevice.OK = 0;
/** Invalid command */
GnubbyDevice.INVALID_CMD = 1;
/** Invalid parameter */
GnubbyDevice.INVALID_PAR = 2;
/** Invalid message length */
GnubbyDevice.INVALID_LEN = 3;
/** Invalid message sequencing */
GnubbyDevice.INVALID_SEQ = 4;
/** Message has timed out */
GnubbyDevice.TIMEOUT = 5;
/** CHannel is busy */
GnubbyDevice.BUSY = 6;
/** Access denied */
GnubbyDevice.ACCESS_DENIED = 7;
/** Device is gone */
GnubbyDevice.GONE = 8;
/** Verification error */
GnubbyDevice.VERIFY_ERROR = 9;
/** Command requires channel lock */
GnubbyDevice.LOCK_REQUIRED = 10;
/** Sync error */
GnubbyDevice.SYNC_FAIL = 11;
/** Other unspecified error */
GnubbyDevice.OTHER = 127;
// Remote helper errors.
/** Not a remote helper */
GnubbyDevice.NOTREMOTE = 263;
/** Could not reach remote endpoint */
GnubbyDevice.COULDNOTDIAL = 264;
// chrome.usb-related errors.
/** No device */
GnubbyDevice.NODEVICE = 512;
/** Permission denied */
GnubbyDevice.NOPERMISSION = 666;
/** Destroys this low-level device instance. */
GnubbyDevice.prototype.destroy = function() {};
/**
* Register a client for this gnubby.
* @param {*} who The client.
*/
GnubbyDevice.prototype.registerClient = function(who) {};
/**
* De-register a client.
* @param {*} who The client.
* @return {number} The number of remaining listeners for this device, or -1
* if this had no clients to start with.
*/
GnubbyDevice.prototype.deregisterClient = function(who) {};
/**
* @param {*} who The client.
* @return {boolean} Whether this device has who as a client.
*/
GnubbyDevice.prototype.hasClient = function(who) {};
/**
* Queue command to be sent.
* If queue was empty, initiate the write.
* @param {number} cid The client's channel ID.
* @param {number} cmd The command to send.
* @param {ArrayBuffer|Uint8Array} data Command data
*/
GnubbyDevice.prototype.queueCommand = function(cid, cmd, data) {};
/**
* @typedef {{
* vendorId: number,
* productId: number
* }}
*/
var UsbDeviceSpec;
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