RGVhciBhbGwsDQoNCkkgYW0gY2FsbGluZyBpb2N0bChSRkNPTU1DUkVBVEVERVYpIHRvIGNyZWF0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Hi,
> >> I am calling ioctl(RFCOMMCREATEDEV) to create tty device from a
> >> rfcomm fd using hands-free profile. If the HF send connection
> >> request to AG and make rfcomm connect, the tty could be made
> >> successfully. However, if the AG(mobile) side make request to create
> >> rfcomm connection, the rfcomm could be created but fail to create
> >> the tty device. The kernel returns error because socket is not
> >> connected, see below code. Any idea? Thanks much!
> >
> > why do you wanna create the TTY in the first place? Going via the TTY
> > layer is pretty bad idea. Don't even think about doing that. Use the
> > RFCOMM socket.
>
> I want to create TTY and expose it to Ofono as /dev/rfcomm0. Ofono side
> could treat bluetooth connection as a TTY device, and create
> GAtChat *chat by using g_at_chat_new_from_tty(tty, syntax).
and that is just wrong to begin with. Write an oFono plugin that uses
Bluetooth RFCOMM sockets directly. I really don't understand why you
wanna make your life so complicated. Within oFono you have to do a
non-blocking RFCOMM connect() anyway using GIOChannel. And once you have
the GIOChannel you can just hand it to g_at_chat_new(). Plain and
simple. Just extend modemconf.c to support a "bluetooth" driver and then
you can even configure address and channel.
Regards
Marcel
Hi Marcel,
Marcel Holtmann wrote:
> Hi,
>
>> I am calling ioctl(RFCOMMCREATEDEV) to create tty device from a
>> rfcomm fd using hands-free profile. If the HF send connection
>> request to AG and make rfcomm connect, the tty could be made
>> successfully. However, if the AG(mobile) side make request to create
>> rfcomm connection, the rfcomm could be created but fail to create
>> the tty device. The kernel returns error because socket is not
>> connected, see below code. Any idea? Thanks much!
>
> why do you wanna create the TTY in the first place? Going via the TTY
> layer is pretty bad idea. Don't even think about doing that. Use the
> RFCOMM socket.
>
> Regards
>
> Marcel
I want to create TTY and expose it to Ofono as /dev/rfcomm0. Ofono side
could treat bluetooth connection as a TTY device, and create
GAtChat *chat by using g_at_chat_new_from_tty(tty, syntax).
Regards,
Zhenhua
Hi,
> I am calling ioctl(RFCOMMCREATEDEV) to create tty device from a rfcomm fd
> using hands-free profile. If the HF send connection request to AG and make
> rfcomm connect, the tty could be made successfully. However, if the
> AG(mobile) side make request to create rfcomm connection, the rfcomm could
> be created but fail to create the tty device. The kernel returns error
> because socket is not connected, see below code. Any idea? Thanks much!
why do you wanna create the TTY in the first place? Going via the TTY
layer is pretty bad idea. Don't even think about doing that. Use the
RFCOMM socket.
Regards
Marcel