Try uploading a file into the /mnt/sdcard dir (or maybe /sdcard?) using 
Eclipse's File Explorer window.


This will tell us if you have permission.



On Thursday, July 19, 2012 4:53:58 PM UTC-5, marcpolo wrote:
>
> Thanks for the suggestion. I have the following in my manifest file
>
> <uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE"/>
> <uses-permission android:name="android.permission.READ_INTERNAL_STORAGE"/>
> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
>
> I am quite confident that I am writing to the write location because it 
> works when I run on the emulator. I think it may be a permissions issue 
> when running on my snowball board, or maybe due to a different versions of 
> android.
>
> On Thursday, 19 July 2012 21:56:26 UTC+1, bob wrote:
>>
>> Make sure you have WRITE_EXTERNAL_STORAGE permission and you are writing 
>> in the sd card directory (i.e. /mnt/sdcard/myfile.txt)
>>
>>
>>
>> On Thursday, July 19, 2012 2:06:40 PM UTC-5, marcpolo wrote:
>>>
>>> Hi,
>>>
>>> I am unable to get file IO working on my snowball board, with the log 
>>> reporting 
>>>
>>> I have tried writing to internal and external space using both Java and 
>>> Native C++ code but to no avail.
>>>
>>> I get the message : File open failed : EACCES (permission denied).
>>>
>>> When I run on the emulator the FileIO works okay.
>>>
>>> Do I have to establish root permission within my Android applications 
>>> perform FileIO on my device?
>>>
>>> Could this be related to the version of Android running on my Snowball 
>>> board, compared with the emulator?
>>>
>>> Thanks in advance.
>>>
>>

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