android-usb Questions

3

Solved

In an Android app, I need permission for a specific USB device (known vendor/product ID), which is permanently plugged on the Android device. So far I've made the following observations: when us...
Deserve asked 30/1, 2019 at 15:56

2

Solved

I have an app that uses <uses-feature android:name="android.hardware.usb.accessory" android:required="true" /> I want that USB to communicate with the App1 running in the foreground and...
Elwood asked 5/11, 2017 at 6:28

2

A device owner can grant runtime permissions to a third-party app using DevicePolicyManager.setPermissionGrantState() to avoid user prompts. But is there any way for a device owner to grant USB per...

2

I am building a Nougat AOSP image for Raspberry Pi 3 following these instructions: https://github.com/tab-pi/platform_manifest. And I have a UVC-compatible USB webcam (Logitech C525) that I would l...

1

Solved

Before Android 9 I could bypass android usb host permission confirmation dialog by using root, systemizing my app and using next usb classes https://mcmap.net/q/339172/-bypass-android-usb-host-perm...
Flail asked 7/8, 2019 at 8:56

0

Currently one of our app required to external device connectivity. So, I want to know how to check OTG support option in settings is enabled or not programatically. This question might explains wh...
Cymbiform asked 25/9, 2017 at 12:48

1

Solved

My goal is to send HDMI CEC commands from a standard (i.e non-system) app running on an Android box equipped with Pulse-Eight's USB dongle. Following these instructions I successfully managed to c...
Theron asked 11/8, 2017 at 15:53

1

I currently have a working implementation that allows me to list USB devices, request permission for that USB device and then connect to them (mainly from http://developer.android.com/guide/topics/...
Ottava asked 14/1, 2016 at 17:12

3

Solved

I have 2 activities within my app. Say FirstActivity and SecondActivity. FirstActivity is the MAIN and LAUNCHER activity. SecondActivity uses usb devices. I want the prompt for USB permission to ap...
Castleberry asked 21/10, 2016 at 17:10

1

Following the simple tutorial I'm able to connect to device (usb optical mouse with ADNS-5000 chip inside) and make a bulkTransfer. UsbInterface intf = device.getInterface(0); UsbEndpoint endpoint...
Caulicle asked 20/7, 2016 at 14:45

1

I Was created a android application based on connecting with webcam. The application works charm while connection with webcam. But when i unplug, my mobile the application crashed and shows "unfort...
Inexpressible asked 6/2, 2016 at 9:57

2

As the title states, I am having troubles enumerating a specific USB device on a USB capable Android phone using UsbManager.getDeviceList(). I've had no trouble enumerating and communicating with o...
Stearne asked 7/11, 2015 at 1:30

1

Solved

I want to use a usb device in the following code. It successfully lists the usb devices and iterates over them. In the following code the object "device" is the usbdevice that i need to open. Every...
Lyrist asked 25/1, 2015 at 14:7

1

Solved

I am trying to use the android host api for USB storage. I have many doubts regarding same. What all things are possible using host api. I want to see the content of USB and if possible so the no...
Nutbrown asked 9/10, 2014 at 16:37
1

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