文件external/libweave/src/privet/device_ui_kind.cc中定义了brillo设备类型，从modelManifestId的头两个字母判断当前设备类型：

1. “AC”: accessPoint
2. “AK”: aggregator
3. “AM”: camera
4. “AB”: developmentBoard
5. “AH”: acHeating
6. “AI”: light
7. “AO”: lock
8. “AK”: printer
9. “AD”: speaker
10. “AL”: storage
11. “AJ”: toy
12. “AA”: vendor
13. “AN”: video

$ curl -H "Authorization: Privet anonymous" -k https://10.0.0.25/privet/info
{
   "authentication": {
      "anonymousMaxScope": "none",
      "crypto": [ "p224_spake2" ],
      "mode": [ "anonymous", "pairing" ],
      "pairing": [ "embeddedCode" ]
   },
   "basicModelManifest": {
      "modelName": "rpi",
      "oemName": "hzak",
      "uiDeviceKind": "vendor"
   },
   "description": "brillo @ rpi",
   "endpoints": {
      "httpPort": 80,
      "httpUpdatesPort": 80,
      "httpsPort": 443,
      "httpsUpdatesPort": 443
   },
   "gcd": {
      "id": "",
      "status": "unconfigured"
   },
   "id": "89FE15C9-19FB-4638-AEB8-B5946B595B99",
   "modelManifestId": "AAAAA",
   "name": "rpi",
   "services": [ "vendor" ],
   "uptime": 326,
   "version": "3.0",
   "wifi": {
      "capabilities": [ "2.4GHz" ],
      "hostedSsid": "rpi 48.AAAAACBprv",
      "ssid": "",
      "status": "connecting"
   }
}

可以看到这台设备的modelManifestId为AAAAA, 头两个字母为AA, 所以它的UI kind为vendor, 即字段中的services为vendor。