I would first check the hardware/cable etc. e.g. with the app "USB Device Info" https://play.google.com/store/apps/details?id=aws.apps.usbDeviceEnumerator
If you can see your device in the android tab, then you are right and it's a software issue. I'm not sure about the device_filter.xml. Do you have to specifiy the values in hex or decimal? The docu uses e.g. class="255" and does not use a hex-only digit. That looks to me like it could be decimal? Am Donnerstag, 28. Februar 2013 10:26:01 UTC+1 schrieb Marta Ribeiro: > > I am connecting the OTG micro B/USB B cable to an USB A/RS232 cable. > > Any help you can provide I would appreciate! > > On Wednesday, February 27, 2013 7:03:51 PM UTC, Tux wrote: >> >> Hi, >> >> what kind of sensor are you using and what protocol (RS232, HID or plain >> USB) is used? >> I played around with some RS232 devices. Perhaps I could find the example >> again. >> Later I switched to a IOIO divice. >> >> Roy >> >> 2013/2/27 Marta Ribeiro <[email protected]> >> >>> I have the cables needed. I even installed an usb host app and it worked >>> correctly. now i'm trying to make my own application and it's not working, >>> so it must be because of the code. Although i am writing it exactly as it >>> advised in tutorials. >>> >>> >>> On Wednesday, February 27, 2013 5:35:44 AM UTC, softy wrote: >>> >>>> Interesting.I don't know much about this but as at the same level you >>>> are I would have checked first wether the Samsung Galaxy S3 has a USB OTG >>>> sw support or not.You can try this by inserting a USB keyboard into it or >>>> a >>>> Mouse and see whether it is working. >>>> I think it has : >>>> *USB:*USB 2.0 client, 480Mbit/s >>>> micro-USB >>>> >>>> What you need is >>>> >>>> *USB:*USB 2.0 host/client, 480Mbit/s >>>> USB A >>>> >>>> >>>> Rgds, >>>> -s >>>> >>>> >>>> On Tue, Feb 26, 2013 at 10:50 PM, Marta Ribeiro <[email protected] >>>> **> wrote: >>>> >>>>> I'm using a Samsung Galaxy S3,and connecting to a sensor using USB >>>>> host and a OTG cable. I'm at the beginning phase just trying to write >>>>> code >>>>> to detect the sensor was attached but it's not working. Can someone take >>>>> a >>>>> look and tell me what they think: >>>>> >>>>> >>>>> protected void onCreate(Bundle savedInstanceState) { >>>>> super.onCreate(**savedInstanceState); >>>>> setContentView(R.layout.**activity_microstrain); >>>>> find_device = (EditText)findViewById(R.id.**find_device); >>>>> UsbManager manager = (UsbManager)getSystemService(** >>>>> Context.USB_SERVICE); >>>>> >>>>> //connect(); >>>>> >>>>> HashMap<String, UsbDevice> deviceList = >>>>> manager.getDeviceList(); >>>>> Iterator<UsbDevice> deviceIterator = >>>>> deviceList.values().iterator()**; >>>>> >>>>> while(deviceIterator.hasNext()**){ >>>>> >>>>> UsbDevice device = deviceIterator.next(); >>>>> Toast.makeText(this,"Value of device :" >>>>> +device.getDeviceName(), Toast.LENGTH_LONG).show(); >>>>> >>>>> } >>>>> >>>>> >>>>> %%%%%% manifest %%%%%%%%%%%%%%% >>>>> >>>>> <?xml version="1.0" encoding="utf-8"?> >>>>> <manifest >>>>> xmlns:android="http://schemas.**android.com/apk/res/android<http://schemas.android.com/apk/res/android>" >>>>> >>>>> package="com.example.**microstrain" >>>>> android:versionCode="1" >>>>> android:versionName="1.0" >>>>> android:orientation="vertical"**> >>>>> >>>>> <uses-feature android:name="android.**hardware.usb.host"/> >>>>> >>>>> <uses-sdk >>>>> android:minSdkVersion="16" >>>>> android:targetSdkVersion="16" /> >>>>> >>>>> <application >>>>> android:allowBackup="true" >>>>> android:icon="@drawable/ic_**launcher" >>>>> android:label="@string/app_**name" >>>>> android:theme="@style/**AppTheme" > >>>>> <activity >>>>> android:name="com.example.**microstrain.MICROSTRAIN" >>>>> android:label="@string/app_**name" > >>>>> <intent-filter> >>>>> <action android:name="android.intent.**action.MAIN" /> >>>>> <category android:name="android.intent.** >>>>> category.DEFAULT"/> >>>>> <category >>>>> android:name="android.intent.**category.LAUNCHER" >>>>> /> >>>>> </intent-filter> >>>>> <intent-filter> >>>>> <action android:name="android.**hardware.usb.action.USB_** >>>>> DEVICE_ATTACHED"/> >>>>> </intent-filter> >>>>> <meta-data android:name="android.** >>>>> hardware.usb.action.USB_**DEVICE_ATTACHED" >>>>> android:resource="@xml/**device_filter" >>>>> /> >>>>> </activity> >>>>> <uses-library android:name="android.test.**runner" /> >>>>> </application> >>>>> >>>>> <instrumentation android:name="android.test.** >>>>> InstrumentationTestRunner" >>>>> android:targetPackage="com.**example.microstrain" >>>>> android:label="microstrain" /> >>>>> >>>>> </manifest> >>>>> >>>>> %%%%%%%%% xml/device_filter.xml %%%%%%%%% >>>>> >>>>> <resources> >>>>> >>>>> <usb-device vendor-id="199b" product-id="3d65"/> >>>>> >>>>> </resources> >>>>> >>>>> %%%%%% >>>>> >>>>> I appreciate all the help. Thanks in advance! >>>>> >>>>> -- >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Android Developers" group. >>>>> To post to this group, send email to android-d...@**googlegroups.com >>>>> >>>>> To unsubscribe from this group, send email to >>>>> android-developers+**[email protected] >>>>> For more options, visit this group at >>>>> http://groups.google.com/**group/android-developers?hl=en<http://groups.google.com/group/android-developers?hl=en> >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Android Developers" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to android-developers+**[email protected]. >>>>> For more options, visit >>>>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>>>> . >>>>> >>>>> >>>>> >>>> >>>> -- >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To post to this group, send email to [email protected] >>> To unsubscribe from this group, send email to >>> [email protected] >>> For more options, visit this group at >>> http://groups.google.com/group/android-developers?hl=en >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> >>> >> >> -- -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
