Re: [Bluez-devel] how to create rfcomm channel

["Vikas Sinha" <compuvikas@gmail.com>]

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Hi Siddhant,
yes you are right. I have done something like that. I have created a general
file pusher works over rfcomm using open obex. Same as u are creating device
special file I create then for next transaction (for other device) i need t
destroy it.

Its g8 u got ur solution.

On 3/5/07, siddhant tewari <siddhant.tewari@gmail.com> wrote:
>
> hi vikas,
>               Thanks for replying and going through my mail. As suggested
> by marcel , now i am using rfcomm sockets directly without using virtual tty
> layer and till now (fingers crossed) things are working fine. Example code
> in rctest.c really helped a lot.
>
> By the way i am sending file using obex_push service by calling pi from
> open obex.What i was doing was , through the code i wrote above , i made a
> device special file , which i then passed to the obex pi for performing obex
> push. Now instead of passing the file path i am passing the rfcomm socket id
> directly which is working fine.I hope this is the right way of doing
> things.
>
> regards
> siddhant
>
> On 3/1/07, Vikas Sinha <compuvikas@gmail.com > wrote:
> >
> > Hi Siddhant,
> >
> > ur code seems to be fine. I think there are some problem in releasing
> > device. Generally Bad File Descriptor comes if socket does not get closed
> > properly. Actually rfcomm takes some time to set free device. try to put
> > some sleep time in between release and again bind.  Even binding at hci
> > layer is longer then rfcomm layer.  But can u tell me how did u send file to
> > your handset. or ur testing it with pc to pc.
> >
> > hcidump will also be useful.
> >
> > On 3/1/07, siddhant tewari < siddhant.tewari@gmail.com> wrote:
> >
> > > hi vikas ,
> > >             Really great to get i reply from you. I was trying to
> > > write a program that can send file to my nokia phone. I was looking for a
> > > api that can create a character device which can be passed to ioctl.  To do
> > > so what i am doing right now is
> > >
> > > i)              char cmdBuf[256];
> > >                 sprintf(cmdBuf,"mknod %s c 216 %d",tempBuf,dev);
> > >                 if (system(cmdBuf) != 0 )
> > >                 {
> > >                     fprintf(stderr,"\nError in executng mknod\n");
> > >                     exit(1);
> > >                 }
> > >
> > > ii) And then
> > > err = ioctl(ctl, RFCOMMCREATEDEV, &req);
> > >
> > > iii) For releasing the device i am doing :-
> > > err = ioctl(ctl, RFCOMMRELEASEDEV, &req);
> > >
> > > These things are working fine for a single run but after 2 run
> > > (keeping the above 3 in while(1) block) ;  while releasing the device ,
> > > ioctl gives error bad file descriptor. Please tell me what i am doing wrong.
> > >
> > >
> > > regards
> > > siddhant
> > >
> > >
> > >
> > >
> > >
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> > --
> > Impossible
> > itself contain
> > I M Possible
> >
> > Vikas
> >
> >
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-- 
Impossible
itself contain
I M Possible

Vikas

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