diff --git a/.gitignore b/.gitignore
index fc37afa..0eab9be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,4 +62,5 @@ test/spec/*.js.map
 .vscode
 
 /.nyc_output/
-/test/integration/app/spec/swagger.json
\ No newline at end of file
+/test/integration/app/spec/swagger.json
+/examples/*.jpeg
\ No newline at end of file
diff --git a/README.md b/README.md
index fd3734a..1cb1728 100644
--- a/README.md
+++ b/README.md
@@ -72,10 +72,13 @@ cameraList.close();
 
 ## Examples
 
-Some example
+Some example are available in the `examples` directory.
+
+Before run example, run `npm run build` then `node examples/camera.js`.
 
 ## Contributors
-Please read [contributing guidelines here](./CONTRIBUTING.md).
+
+Contributors and PR are welcome. Before, just read [contributing guidelines here](./CONTRIBUTING.md) ;)
 
 <a href="https://github.com/romakita/ts-express-decorators/graphs/contributors"><img src="https://opencollective.com/tsed/contributors.svg?width=890" /></a>
 
diff --git a/examples/abilities-list.js b/examples/abilities-list.js
index 8ac8de8..04c7ea2 100644
--- a/examples/abilities-list.js
+++ b/examples/abilities-list.js
@@ -1,4 +1,4 @@
-import { checkCode } from '../src/driver';
+const { checkCode } = require('../lib/driver');
 
 const { AbilitiesList, PortInfoList, GPhoto2Driver } = require('../src');
 const ref = require('ref');
diff --git a/examples/camera-autoselect.js b/examples/camera-autoselect.js
index 93806a6..5e5df71 100644
--- a/examples/camera-autoselect.js
+++ b/examples/camera-autoselect.js
@@ -1,4 +1,4 @@
-const { Camera, closeQuietly } = require('../src');
+const { Camera, closeQuietly } = require('../lib');
 const path = require('path');
 const camera = new Camera();
 
diff --git a/examples/camera-info.js b/examples/camera-info.js
index c5303d3..3183ca6 100644
--- a/examples/camera-info.js
+++ b/examples/camera-info.js
@@ -1,6 +1,6 @@
 const SegfaultHandler = require('segfault-handler');
 const path = require('path');
-const { CameraList, closeQuietly } = require('../src');
+const { CameraList, closeQuietly } = require('../lib');
 
 SegfaultHandler.registerHandler('crash.log');
 
diff --git a/examples/camera-list-autodetect.js b/examples/camera-list-autodetect.js
index c56190f..90682ee 100644
--- a/examples/camera-list-autodetect.js
+++ b/examples/camera-list-autodetect.js
@@ -1,5 +1,5 @@
 const SegfaultHandler = require('segfault-handler');
-const { CameraList } = require('../src');
+const { CameraList, PortInfoList } = require('../lib');
 
 SegfaultHandler.registerHandler('crash.log');
 
diff --git a/examples/camera-list-populate.js b/examples/camera-list-populate.js
index 0b1582e..0991808 100644
--- a/examples/camera-list-populate.js
+++ b/examples/camera-list-populate.js
@@ -1,5 +1,5 @@
 const SegfaultHandler = require('segfault-handler');
-const { CameraList, PortInfoList } = require('../src');
+const { CameraList, PortInfoList } = require('../lib');
 
 SegfaultHandler.registerHandler('crash.log');
 
diff --git a/examples/camera-scenario-async.js b/examples/camera-scenario-async.js
index 3637707..90eb55d 100644
--- a/examples/camera-scenario-async.js
+++ b/examples/camera-scenario-async.js
@@ -1,4 +1,4 @@
-const { Camera, closeQuietly, CameraWidgets } = require('../src');
+const { Camera, closeQuietly, CameraWidgets } = require('../lib');
 const path = require('path');
 
 const camera = new Camera();
diff --git a/examples/camera-scenario.js b/examples/camera-scenario.js
index 30ebb6f..818a736 100644
--- a/examples/camera-scenario.js
+++ b/examples/camera-scenario.js
@@ -1,4 +1,4 @@
-const { Camera, closeQuietly, CameraWidgets } = require('../src');
+const { Camera, closeQuietly, CameraWidgets } = require('../lib');
 const path = require('path');
 
 const camera = new Camera();
diff --git a/examples/camera.js b/examples/camera.js
index 8ae381c..0012b6f 100644
--- a/examples/camera.js
+++ b/examples/camera.js
@@ -1,6 +1,6 @@
 const SegfaultHandler = require('segfault-handler');
 const path = require('path');
-const { CameraList, closeQuietly } = require('../src');
+const { CameraList, closeQuietly } = require('../lib');
 
 SegfaultHandler.registerHandler('crash.log');
 
diff --git a/examples/capture-1.jpeg b/examples/capture-1.jpeg
deleted file mode 100644
index c70bad5..0000000
Binary files a/examples/capture-1.jpeg and /dev/null differ
diff --git a/examples/port-list.js b/examples/port-list.js
index f077c49..78b5661 100644
--- a/examples/port-list.js
+++ b/examples/port-list.js
@@ -1,4 +1,4 @@
-const { PortInfoList } = require('../src');
+const { PortInfoList } = require('../lib');
 
 const portList = new PortInfoList();
 
diff --git a/examples/widgets.js b/examples/widgets.js
index 7adbbb9..c63f708 100644
--- a/examples/widgets.js
+++ b/examples/widgets.js
@@ -1,5 +1,5 @@
 const path = require('path');
-const { CameraList, closeQuietly } = require('../src');
+const { CameraList, closeQuietly } = require('../lib');
 
 SegfaultHandler.registerHandler('crash.log');
 
diff --git a/src/driver/modules/GPFileModule.ts b/src/driver/modules/GPFileModule.ts
index ce80f06..beabdf3 100644
--- a/src/driver/modules/GPFileModule.ts
+++ b/src/driver/modules/GPFileModule.ts
@@ -7,6 +7,8 @@ export const GP_FILE_MODULE_ASYNC_KEYS: string[] = ["gp_file_save"];
 // tslint:disable-next-line: variable-name
 export const GPFileModuleDescription = {
   gp_file_new: ["int", [refType(RefCameraFile)]],
+  gp_file_new_from_fd: ["int", [refType(RefCameraFile), "int"]],
+  gp_file_get_mime_type: ["int", [RefCameraFile, refType(types.CString)]],
   gp_file_ref: ["int", [RefCameraFile]],
   gp_file_clean: ["int", [RefCameraFile]],
   gp_file_save: ["int", [RefCameraFile, types.CString]],
@@ -22,6 +24,22 @@ export interface IGPFileModule {
    */
   gp_file_new(buffer: PointerOf<PointerCameraFile>): GPCodes;
 
+  /**
+   * Create new {@link CameraFile} object from a UNIX filedescriptor.
+   * @param {PointerOf<PointerCameraFile>} buffer
+   * @param {number} fd
+   * @returns {GPCodes}
+   */
+  gp_file_new_from_fd(buffer: PointerOf<PointerCameraFile>, fd: number): GPCodes;
+
+  /**
+   *
+   * @param {PointerCameraFile} file
+   * @param {PointerOf<string>} mime
+   * @returns {GPCodes}
+   */
+  gp_file_get_mime_type(file: PointerCameraFile, mime: PointerOf<string>): GPCodes;
+
   /**
    *
    * @param {PointerCameraFile} cameraFile