libusbNativeAndroidTest

Example of a Native Android app for testing the libusb library in Android.

Why

Support for libusb in non rooted Android devices is still not properly solved ref, this repository tries combines the code from various repositories (references below) to generate a Native Android app to connect to usb devices.

Usage

The modified libusb library is added as a submodule, so you will have to load the submodule either by clonning with the recursive flag or:

git clone https://github.com/ibaiGorordo/libusbNativeAndroidTest.git
cd libusbNativeAndroidTest
git submodule update --init

Output

Nothing will appear on the screen, you will have to check the logcat and filter for text contanining the LOG_TAG string (defined in libusb_utils.h and set to libusbNativeAndroidTest by default).

Example

I/libusbNativeAndroidTest:
Dev (bus 1, device 2): 03E7 - 2485 speed: Unknown
      Manufacturer:              Movidius Ltd.
      Product:                   Movidius MyriadX
      Serial Number:             03e72485
      Configuration:
        wTotalLength:            32
        bNumInterfaces:          1
        bConfigurationValue:     1
        iConfiguration:          0
        bmAttributes:            80h
        MaxPower:                250
        Interface:
          bInterfaceNumber:      0
          bAlternateSetting:     0
          bNumEndpoints:         2
          bInterfaceClass:       255
          bInterfaceSubClass:    17
          bInterfaceProtocol:    255
          iInterface:            0
          Endpoint:
            bEndpointAddress:    81h
            bmAttributes:        02h
            wMaxPacketSize:      512
            bInterval:           0
            bRefresh:            0
            bSynchAddress:       0
          Endpoint:
            bEndpointAddress:    01h
            bmAttributes:        02h
            wMaxPacketSize:      512
            bInterval:           0
            bRefresh:            0
            bSynchAddress:       0

References:

• Pull request to improve the use of libusb in Android: libusb/libusb#874
• Repository with the corrections in the libusb library used in this repository: https://github.com/xloem/libusb/tree/android
• Repository where the libusb_utils.h functions were taken from: https://github.com/Peter-St/libusb