[maemo-developers] Wrting to a text file in N800 /media/mmc1

[From: nisha jain]

Hi All,

I just checked in N800 the following program for writing into a file which

doesn't work.... Any clues what is going wrong? I neither get any error not
it is

creating a file and writing into it.........

#include<stdio.h>

void main()
{
    FILE *Gfile;
    if ((Gfile = fopen("/media/mmc1/test.txt", "wt+")) == NULL)
    {
        printf("Error in file creation");
    }

    if(Gfile)
    fprintf(Gfile,"%02x",0x10);
    fclose(Gfile);
}

Regards,
Nisha

On Sat, Jul 5, 2008 at 5:34 PM, nisha jain <jain61 at gmail.com> wrote:

> Hi Gray,
>
> I checked the file pointer if it is NULL I am printing error message and
> returning too.
>
> Also i am checking while writing into a file that file pointer is not NULL.
>
> I have tested it on mameo (ARMEL) enviornment and it is working absolutely
> fine
>
> I am not able to understand while after porting to N800 it doesn't show up
> any file created on flash
>
> at least it should create an empty file......Does there is some restriciton
> in writing into flash?
>
> Regards,
> Nisha
>
>
> On Sat, Jul 5, 2008 at 2:29 PM, gary liquid <liquid at gmail.com> wrote:
>
>> nisha,
>>
>> check you have included appended the filename on the end of the path in
>> your adjusted program.
>> Check the return values of all functions called and do not assume success
>> for anything.
>> Most importantly, put printf("fn msg/n");  calls around your program at
>> relevant points.
>> The printfs will help you debug by showing you where your software got to
>> and optionally whatever additional information you want to display.
>>
>> Gary (lcuk on maemo)
>>
>> On Sat, Jul 5, 2008 at 6:54 PM, nisha jain <jain61 at gmail.com> wrote:
>>
>>> hi All,
>>>
>>> I wrote a program which is collecting some data and creating text file to
>>> write into.
>>>
>>> I am successfully able to run and execute it in the VmWare maemo
>>> enviornment without any problem.
>>>
>>> When i deployed it into N800 I am getting segmentation fault this
>>> application I checked in ARMEL compiled
>>>
>>> mode on VmWare... I am not sure how to debug it as it is working fine in
>>> the Maemo enviornment but crashes
>>>
>>> on the actual N800 device... Only change is the file created in
>>>
>>> using like fopen ("filename", "wt");
>>>
>>> in the Maemo and in case of N800 fope("/media/mmc1", "wt")
>>>
>>> I tired checking if file gets created to /media/mmc1 or not but it
>>> doesn't get created their at all.................
>>>
>>> Let me know if some one has idea?
>>>
>>> Regards,
>>> Nisha
>>>
>>> _______________________________________________
>>> maemo-developers mailing list
>>> maemo-developers at maemo.org
>>> https://lists.maemo.org/mailman/listinfo/maemo-developers
>>>
>>>
>>
>
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