You can use Android Debug Bridge (ADB) to connect your Fire tablet to your computer for testing and debugging. You connect your computer to your Fire tablet through a micro-USB cable.

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• Ghi Usb Devices Drivers
• GHI USB Devices Driver
• Ghi Usb Devices Driver Updater

Android Debug Bridge (ADB) is a command-line utility for running and managing Android apps on your device or emulator. For more information and instructions on using ADB, see Android Debug Bridge.

Locate the Unknown Device. RELATED: How to Use the Windows Device Manager for Troubleshooting You’ll see information about Unknown Devices in the Device Manager.To open it on Windows 10, 8.1, or 8, right-click in the bottom-left corner of the screen or press Windows Key + X and select Device Manager. Plug in your device to the host system. Open Device Manager and locate the device. Select and hold (or right-click) the device and select Update driver software. From the context menu. In the wizard, select Browse my computer for driver software.

If you're looking for instructions on connecting to a Fire TV instead, see Connect to Fire TV Through ADB.

• Check for Device Connections Using ADB (Optional)
• Troubleshooting

Ghi Usb Devices Driver Win 7

Step 1: Enable Developer Options

1. Go to Settings > Device Options and look for a Developer Options menu. If it's not there, do the following:

   a. Go to Settings > Device Options > About Fire Tablet.b. Tap your Serial Number seven times.c. Return to Device Options. A new menu appears called 'Developer Options.'

2. Tap Developer options. (2013 models might call this option 'Security.')
3. Set Developer options and USB debugging to ON.

• If you have a Kindle Fire 1st Generation, ADB is enabled by default.

Step 2: Install the Kindle Fire Driver (Windows Only)

1. If you're using Windows, download this Kindle Fire driver: kindle_fire_usb_driver.zip.
2. After downloading the file, extract the contents into a new folder and double-click the Fire_Devices ABD drivers file.
3. Proceed through the installation wizard screens to install the driver.

Step 3: Install Android Studio

ADB is available on your computer when you install Android Studio. If you don't already have Android Studio, download and install Android Studio. If you're not using Android Studio, you need to download and install Android SDK platform tools.

Step 4: Connect Your Fire Device to Your Computer with a USB Cable

1. Using a USB cable, connect your Fire tablet to a USB port on your computer.

   Note that Fire tablets can treat the USB with different transfer options. After connecting the USB cable, swipe down from the top of your tablet to see the USB option used. You might see various notifications, including the USB connection type that was used when you connected the cable. The relevant notification is highlighted in the screenshot below.

   If you don't see 'Connected as Media Device', press Tap for other USB options. Then select Media device (MTP). Later Fire OS versions have a different interface here. If you're using Fire OS 7, select File Transfer.

   Note: If your USB is connected as a Camera (PTP), Android Studio won't recognize the tablet as a device in Android Studio.

   If you don't see the USB connection type in the above notifications, go to Settings > Device Options > Developer Options > USB computer connection. Set this to Media device (MTP). For Fire OS 7, select File Transfer.

2. When the Allow USB debugging? dialog appears on your tablet, tap OK.

3. Open Android Studio and look for the device to appear in devices drop-down menu:

   The device's name will use the android.os.Build.MODEL property for the device. KFSUWI refers to Fire HD 10 (2017) tablet. You can see a list of build model names in the Identifying Fire Tablet Devices.

   If you have not selected the 'Allow USB Debugging' dialog on your tablet, the name 'Unknown device' will appear in the devices drop-down menu in Android Studio until you allow debugging.

4. With the tablet connected, you can now run your app on your tablet by clicking the Run App button in Android Studio.

If you run into issues, see the Troubleshooting section below.

Check for Device Connections Using ADB (Optional)

Instead of looking in the devices menu in Android Studio, you can also use some ADB terminal commands to confirm that your device is connected. ADB is useful for performing many other operations as well, such as entering sandbox mode or installing other assets. Follow these two sections:

If you skip adding ADB to your PATH, you can also Check for Connected Devices If ADB Isn't In Your PATH.

Add ADB to Your PATH

First, add ADB to your PATH so you can more easily run ADB commands. (Your PATH is an environment variable used to specify the location of the program's executable. If you don't add ADB to your PATH, running ADB commands will require you to browse to the <Android SDK>/platform-tools directory to run adb.)

To add ADB to your PATH on Mac:

1. Get the path to your Android SDK platform-tools directory:

   1. Open Android Studio and click the SDK Manager button .The location to your Android SDK appears near the top next to Android SDK Location. For example: /Users/<your username>/Library/Android/sdk

      If this is your first time opening Android Studio, there isn't an SDK Manager button. Instead, at the Welcome to Android Studio prompt, click Configure > SDK Manager and provide the location to the Android SDK.

   2. Copy the path to the SDK and paste it somewhere convenient, such as a text editor.
   3. Add /platform-tools to the end of the path you copied in the previous step. ('platform-tools' is the directory containing the ADB executable.)
   4. Copy the full path to your clipboard.

2. Use the following command to add ADB to your .bash_profile. Replace <your username> with your actual username. Also, make sure the path points to your Android SDK.

   Your .bash_profile file is usually in your user directory, which you can find by typing cd ~ (change to your user directory). Then type ls -a (list all) to show all files, including hidden ones.

   If the file isn't there, simply create one. You can then type open .bash_profile to see the paths listed.

   After you add this PATH to your bash profile, you should see the following in your .bash_profile file:

   (Only instead of johndoe, you will see your own username.)

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3. Fully restart any terminal sessions, and then type adb. If you successfully added ADB to your path, you will see ADB help info rather than 'command not found.'

To add ADB to your PATH on Windows:

1. Get the path to your Android SDK platform-tools directory:

   1. Open Android Studio and click the SDK Manager button .

      The location to your Android SDK appears near the top next to Android SDK Location. For example: C:Users<your user name>AppDataLocalAndroidSdk

      If this is your first time opening Android Studio, there isn't an SDK Manager button. Instead, at the Welcome to Android Studio prompt, click Configure > SDK Manager and provide the location to the Android SDK.

   2. Copy the path to the SDK and paste it somewhere convenient, such as a text editor.
   3. Add /platform-tools to the end of the path you copied in the previous step. ('platform-tools' is the directory containing the ADB executable.)
   4. Copy the full path to your clipboard.
2. Click your computer's search button (next to Start) and type view advanced system settings.
3. Click View advanced system settings.
4. When the System Settings dialog opens, click the Environment Variables button.
5. Under System Variables (the lower pane), select Path and click Edit.

6. Do one of the following:

   • On Windows 7 or 8, move your cursor to the farthest position on the right, type ; and then press Ctrl+V to insert the path to your SDK that you copied earlier. It may look like this: ;C:Users<your user name>AppDataLocalAndroidSdkplatform-tools. Click OK on each of the three open dialog boxes to close them.
   • On Windows 10, click the New button and add this location.
7. Restart any terminal sessions, and then type adb. If you successfully added ADB to your path, you will see ADB help info rather than 'command not found.'

Check for Connected Devices

1. Assuming ADB is added to your PATH, run the following commands:

2. Confirm that the serial number for your Fire tablet appears in the list of devices. For example:

   On your tablet, your device's serial number is located under Settings > Device Options.

Check for Connected Devices If ADB Isn't In Your PATH

If your terminal doesn't recognize adb as a command (that is, you didn't add ADB to your PATH), you might have to run the commands from the SDK directory that contains ADB.

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1. In Android Studio go to Tools > SDK Manager.
2. In the SDK Manager dialog box, copy the Android SDK Location.

3. Browse to this location in your terminal or command prompt. For example:

   Mac

   Windows

   Then go into the platform-tools directory:

   The platform-tools directory contains adb.

4. Now run the ADB commands as follows:

   Mac:

   Windows:

   The response should list your device's serial number. For example:

   If your Fire tablet is still not detected, you may need to reboot your computer or log out and back in for the changes to take effect.

Troubleshooting

Tablet doesn't appear in list of devices in Android Studio

1. If you don't see your tablet device in the list of devices in Android Studio, click the devices drop-down menu and select Troubleshoot device connections:

2. Click Rescan devices.

   If rescanning devices doesn't detect your Fire tablet as a device, your micro-USB cable might be bad, you might have the wrong USB connection type (e.g, camera instead of media device), or you might not have enabled USB debugging. You can also try restarting your computer and the tablet.

Uninstall the non-ADB Driver (Windows)

If you previously connected a Fire tablet without first enabling ADB on the Fire tablet, you might need to remove the existing USB device driver and force re-installation of the driver. To remove the non-ADB driver:

1. Using a micro-USB cable, connect your Fire tablet to a USB port on your computer.
2. On your computer (Windows 10), click the search button (next to the Start menu) and type Device Manager in the search. Then select it in the results. (Other Windows versions have different options for accessing the Control Panel.)
3. In the Device Manager window, expand Portable Devices.
4. Right-click the Fire device and then click Properties.
5. In the Properties window, on the Driver tab, click Uninstall, and then Confirm.
6. Unplug your Fire tablet from your computer.

Confirm the Fire Driver Is Installed Correctly

You can confirm that the Fire driver is installed correctly by doing the following:

1. On your computer, click the search button search button (next to the Start menu) and type Device Manager.

2. In Device Manager, under Fire Devices, verify that that a device appears called Android Composite ADB Interface.

   If your Device Manager shows an Other Devices section with a second Fire device with a yellow alert sign, your computer is listing Amazon's unrecognized ADB module as a separate device. To fix this issue:

   1. Under Other Devices, right-click the Fire device and select Properties.
   2. On the Driver tab of the Properties window, select Update Driver…
   3. Choose to browse for the driver software, then navigate to Let me pick from a list of device drivers on my computer > Show All Devices > Have Disk.
   4. Navigate to the folder where you installed the Amazon driver (typically C:Program Files (x86)Amazon.comFire_DevicesDrivers) and select it.

   5. Ignore the warning regarding installing drivers and proceed.

      You should now correctly see your Fire tablet with the ADB driver installed.

Last updated: Oct 29, 2020

By default, all of GHI's NETMF devices use USB for deploying and debugging. You may optionally use the USB client (not the host) for something other than debugging. This is actually supported by NETMF and GHI Electronics adds more functionality making it even easier to use.

Say you are making a device that that reads temperature and humidity and logs all of this data on an SD card. This device can be configured to set the time or give file names and you want this configuration to happen over USB, perhaps in the field. So when your device plugs into a USB port, you want it to show as a virtual serial port. This way, anyone can open a terminal software (like TeraTerm) to connect to your device and configure it.

Using the USB client, there is no need to add the extra cost of additional RS232 serial ports or USB<->serial chipsets. The built-in USB client port can be configured to act as a CDC device, a virtual COM port. However, you still need to connect the PC to your device for debugging and deploying applications. Since the USB client port is used by your end application, you need to debug and deploy using a serial connection. You only need the serial interface in the development and deployment stage.

Setting Up

Debugging and deploying serially is specific to each device so you may want to consult your device's manual or Developers' Guide. Once the device is configured for the serial interface, remember to select the proper transport in Visual Studio.

Tip

The examples shown below require the Microsoft.SPOT.Hardware.Usb and GHI.Usb assemblies.

Mouse

The following example tells your device to act as a mouse and send random commands to your computer. You could use this to prank others and send their computer fake mouse commands or to have a second mouse for your own computer.

Keyboard

Emulating a keyboard is as very similar to emulating a mouse. The following example will create a USB Keyboard and send 'Hello world!' to a computer every second.

CDC - Virtual Serial Port

Serial ports are the most common interface, especially in the embedded system world. It is an ideal solution for devices to transfer data between computers and embedded devices NETMF products. To combine the popularity and usefulness of USB with the ease of serial, we have virtual USB devices. To Windows' applications or devices, a virtual serial port works just like a serial port but it is actually a USB port.

To use CDC, you need the USB Drivers that come with the GHI Electronics NETMF and Gadgeteer SDK (2016 R1 and later). This will only work if you use the default constructor of the Cdc class. If you do not and you provide different Vendor and Product Ids, this driver will not work and you will need to create your own. You can use the one we provide in the SDK as a model, though it will not be signed.

Note: CDC drivers usually handle one transaction in every frame. The max EP size on USB is 64 bytes and there 1000 frames per second on full-speed USB. This means that the maximum transfer rate in ideal conditions for CDC is 64KB/sec.

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The buffer size is limited so you must be make sure to read all data quickly because there is no overflow event.

The following example will create a USB CDC and send 'Hello world!' to computer every second.

Mass Storage

GHI's USB client supports Mass Storage Class (MSC). This allows access to connected media right from USB. For example, a data logger application that needs to save data to an SD card or USB memory. When the user is done collecting data, they can plug the USB data logger into the PC and now the PC can detect the device as a mass storage device. The user can then transfer the files using standard operating system controls. It may be helpful to think of the device as a memory card reader. We can even enhance our logger where the USB client interface can be CDC to configure the device and later dynamically switch to MSC to transfer files.

Once very common question on GHI Electronics support is 'Why can't I access the media from my application while the media is also accessed externally (from windows)?' Due to caching of file system data and/or the possibility of a write from one interface while the other is doing a read and/or a write, data on the media and/or data used by the interface will likely (and quickly) be corrupted.

Ghi Usb Devices Drivers

Note: you can easily switch back and forth between internal file system and USB MSC.

This example code assumes an SD card is always plugged in. Drivers pioneer sound cards & media devices. It enables MSC showing the device as a card reader. This code assumes that the USB port is NOT being used for debugging.

GHI USB Devices Driver

In addition to the assemblies mentioned above in the Note, the following code requires the GHI.Hardware assembly.

Ghi Usb Devices Driver Updater

HID and Custom Devices

Windows and other operating systems have built in drivers for USB HID (Human Interface Devices). These drivers are ideal as they provide a simple way to transfer data between a computer and a device. HID's are usually mice and keyboards but they can also be simple data transfer devices. Although examples in codeshare may need changes for differences in SDK releases, this project provides a good example:

The GHI Electronics USB Client allows you to control the USB client in anyway you like. This feature requires advanced knowledge of USB. If you do not know what an EndPoint or a Pipe is then do not attempt to create custom devices. It is very important to have the device configured correctly the first time it is plugged into Windows since Windows stores a lot of information in its registry. If you change the configuration of your device after you had it plugged into Windows previously, Windows may not see the changes since it will be using the old configuration from its registry. Do not use USB Client Custom Devices unless you really have good reason to use them and you are knowledgeable in USB and Windows drivers.