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Discover connected devices using the Android USB Host APIs

License: Apache License 2.0

Java 54.49% Kotlin 45.51%

android-things

sample-usbenum's People

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venkatasudha liuyunli paladinzh nerealegui freewing-jp gaozhq phanee liuzhao1006 omcsesz f-android-things alexjarabek sam43 diaoliangpeng faizrehman drjasonharrison-vp-eio liangbing910913 2050utopia cement markiantorno dkraskov meteortom sahandmahdavi senjuid sebastiangrg weicong-ye kuanyuli hicody saitokaz102 itxiaox krumpgamingco rajat1110 venom4444 jawker soma11 pcarff abhi-1203 robertdigital iqorqua ag143 cw00001 michaeljedy zelenbii ironreign paphotbus poolooloo tusharbapte rahulranjanthynkxd bmk10 muskanmahajan37 zhangjh-02 jackyzcq niltonlacerda newtonsjr tarnak-public cmdprompt86 vpsoft nitmar00 askxionghu faiz786 odroidthings tomek-sienicki prakashanbu a1623443007 emidry szfmrx patrickzhu8 krishanksharma

sample-usbenum's Issues

App doesn't work with mobile

When I connect a device to my ASUS Zenfone ZB500KL (Android 6.0.1), no devices are discovered. When working with another mobile, everything is fine.

I enclosed my error log.
usbenum error log.txt

Crashes when an Arduino Yun ic connected via Usb

The sample app crashes when an Arduino Yun is connected to the Raspberry Pi running Android Things.

Log

FATAL EXCEPTION: main
Process: com.example.androidthings.usbenum, PID: 7369
java.lang.ArrayIndexOutOfBoundsException: length=64; index=64
at com.example.androidthings.usbenum.ConfigurationDescriptor.parseResponse(ConfigurationDescriptor.java:125)
at com.example.androidthings.usbenum.ConfigurationDescriptor.fromDeviceConnection(ConfigurationDescriptor.java:54)
at com.example.androidthings.usbenum.UsbActivity.printDeviceDetails(UsbActivity.java:155)
at com.example.androidthings.usbenum.UsbActivity.handleIntent(UsbActivity.java:96)
at com.example.androidthings.usbenum.UsbActivity.onNewIntent(UsbActivity.java:61)
at android.app.Instrumentation.callActivityOnNewIntent(Instrumentation.java:1223)
at android.app.Instrumentation.callActivityOnNewIntent(Instrumentation.java:1235)
at android.app.ActivityThread.deliverNewIntents(ActivityThread.java:2783)
at android.app.ActivityThread.performNewIntents(ActivityThread.java:2795)
at android.app.ActivityThread.handleNewIntent(ActivityThread.java:2804)
at android.app.ActivityThread.-wrap15(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1539)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

Does not detect USB Hubs until another non-hub device is connected

This probably isn't a defect but more of a issue with Android's USB system. If you plug a OTG adapter into a phone and then connect a USB powered hub, the hub won't be detected, but devices connected to the hub will be.

Host and Accessory communication(NOT AN ISSUE)

I'm encountering difficulties establishing communication between two Android devices, where one is designated as the host and the other as the accessory. I attempted to utilize the usb-serial-for-android library on one device and connected the two devices using a wired connection. However, I'm facing issues in establishing a connection and facilitating communication between the devices.

DeviceList is always empty on Android 9

My setup

macOS 10.14
Android Studio 3.5.3
Android 9
adb: 1.0.41 Version 29.0.5-5949299

Running the app, after upgrading ext.kotlin_version to 1.3.50 to make it build, just gives me empty device list when it's connected with a USB cable to a macOS with Android Studio 3.5.3 installed.

Here is my adb logcat

2019-12-26 18:08:40.435 10616-10616/? I/dthings.usbenu: Late-enabling -Xcheck:jni
2019-12-26 18:08:40.536 10616-10629/? I/dthings.usbenu: The ClassLoaderContext is a special shared library.
2019-12-26 18:08:40.562 10616-10629/? I/dthings.usbenu: The ClassLoaderContext is a special shared library.
2019-12-26 18:08:40.686 10616-10616/? I/Perf: Connecting to perf service.
2019-12-26 18:08:40.676 10616-10616/? W/embryo: type=1400 audit(0.0:1631): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:40.676 10616-10616/? W/embryo: type=1400 audit(0.0:1632): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:40.692 10616-10616/? E/libc: Access denied finding property "vendor.perf.iop_v3.enable"
2019-12-26 18:08:40.692 10616-10616/? E/libc: Access denied finding property "vendor.perf.iop_v3.enable.debug"
2019-12-26 18:08:40.694 10616-10616/? E/libc: Access denied finding property "vendor.perf.iop_v3.enable"
2019-12-26 18:08:40.694 10616-10616/? E/libc: Access denied finding property "vendor.perf.iop_v3.enable.debug"
2019-12-26 18:08:40.676 10616-10616/? W/embryo: type=1400 audit(0.0:1633): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:40.700 10616-10616/? D/Embryo: preload com.example.androidthings.usbenum, 53ms, hwui=true, layout=true, decor=false
2019-12-26 18:08:40.704 10616-10642/? D/OpenGLRenderer: Skia GL Pipeline
2019-12-26 18:08:42.865 10616-10616/com.example.androidthings.usbenum E/libc: Access denied finding property "vendor.perf.iop_v3.enable"
2019-12-26 18:08:42.865 10616-10616/com.example.androidthings.usbenum E/libc: Access denied finding property "vendor.perf.iop_v3.enable.debug"
2019-12-26 18:08:42.846 10616-10616/com.example.androidthings.usbenum W/dthings.usbenum: type=1400 audit(0.0:1635): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:42.870 10616-10616/com.example.androidthings.usbenum V/Font: Change font:2
2019-12-26 18:08:42.889 10616-10616/com.example.androidthings.usbenum E/libc: Access denied finding property "vendor.perf.iop_v3.enable"
2019-12-26 18:08:42.876 10616-10616/com.example.androidthings.usbenum W/dthings.usbenum: type=1400 audit(0.0:1637): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:42.889 10616-10616/com.example.androidthings.usbenum E/libc: Access denied finding property "vendor.perf.iop_v3.enable.debug"
2019-12-26 18:08:42.876 10616-10616/com.example.androidthings.usbenum W/dthings.usbenum: type=1400 audit(0.0:1638): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:42.890 10616-10616/com.example.androidthings.usbenum E/libc: Access denied finding property "vendor.perf.iop_v3.enable.debug"
2019-12-26 18:08:42.876 10616-10616/com.example.androidthings.usbenum W/dthings.usbenum: type=1400 audit(0.0:1640): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:42.914 10616-10616/com.example.androidthings.usbenum I/UsbEnumerator: Device List
2019-12-26 18:08:42.914 10616-10616/com.example.androidthings.usbenum I/UsbEnumerator: No Devices Currently Connected
2019-12-26 18:08:42.923 10616-10616/com.example.androidthings.usbenum E/libc: Access denied finding property "vendor.perf.iop_v3.enable"
2019-12-26 18:08:42.906 10616-10616/com.example.androidthings.usbenum W/dthings.usbenum: type=1400 audit(0.0:1641): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:42.923 10616-10616/com.example.androidthings.usbenum E/libc: Access denied finding property "vendor.perf.iop_v3.enable.debug"
2019-12-26 18:08:42.906 10616-10616/com.example.androidthings.usbenum W/dthings.usbenum: type=1400 audit(0.0:1642): avc: denied { read } for name="u:object_r:vendor_iop_prop:s0" dev="tmpfs" ino=16888 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:vendor_iop_prop:s0 tclass=file permissive=0
2019-12-26 18:08:42.943 10616-10668/com.example.androidthings.usbenum D/DecorView: onWindowFocusChangedFromViewRoot hasFocus: true, DecorView@5fbb7be[UsbActivity]
2019-12-26 18:08:42.944 10616-10642/com.example.androidthings.usbenum I/Adreno: QUALCOMM build                   : f909f5a, Ida6448821d
    Build Date                       : 11/12/18
    OpenGL ES Shader Compiler Version: EV031.25.03.00
    Local Branch                     : 
    Remote Branch                    : refs/tags/AU_LINUX_ANDROID_LA.UM.7.3.R1.08.00.00.423.039
    Remote Branch                    : NONE
    Reconstruct Branch               : NOTHING
2019-12-26 18:08:42.944 10616-10642/com.example.androidthings.usbenum I/Adreno: Build Config                     : S P 6.0.3 AArch64
2019-12-26 18:08:42.936 10616-10616/com.example.androidthings.usbenum W/RenderThread: type=1400 audit(0.0:1643): avc: denied { search } for name="proc" dev="debugfs" ino=16694 scontext=u:r:untrusted_app_27:s0:c512,c768 tcontext=u:object_r:qti_debugfs:s0 tclass=dir permissive=0
2019-12-26 18:08:42.946 10616-10642/com.example.androidthings.usbenum I/Adreno: PFP: 0x016ee170, ME: 0x00000000
2019-12-26 18:08:42.949 10616-10642/com.example.androidthings.usbenum I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 1
2019-12-26 18:08:42.949 10616-10642/com.example.androidthings.usbenum I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasHDRDisplay retrieved: 0
2019-12-26 18:08:42.950 10616-10642/com.example.androidthings.usbenum I/OpenGLRenderer: Initialized EGL, version 1.4
2019-12-26 18:08:42.950 10616-10642/com.example.androidthings.usbenum D/OpenGLRenderer: Swap behavior 2

Detached USB Peripheral and attached USB Peripheral

hei man,when i detached usb Peripheral ,and the I attached usb peripheral,the application can not run againt,it was with a blink screen! it was a bug!rigth!
--------------From Green Arrow

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