Re: [Bluez-users] H5 3 wire UART connect problem

hariharan veerappan
2005-07-05T07:15:07Z

Hello All / Marcel,

We have changed the hciattach.c and hci_h5.c (H5 3 WIRE UART Bluetooth driv=
er).
The Bluetooth module is up. We could read the Bluetooth device address
and scan the
bluetooth network.

Thanks marcel for your valuable support.

Now we are facing the general problem.
we are trying to run SDPD daemon, it fails.

we could not able to browse the bluetooth network.
This SDPD fail occurs, when we use the USB Dongle also.

We have only changed the hci_h5.c and hciattach with new name of the
dongle (H5 3 WIRE).

Our specification :
Kernel - 2.4.20.

For information:

we run sdpd
then we try to kill sdpd, it returns NO PROCESS is KILLED information.

Advise us.
=20
Thanks and regards
Hariharan.V.

On 7/4/05, Marcel Holtmann <marcel@holtmann.org> wrote:
> Hi Hariharan,
>=20
> > Presently we are working in 3 WIRE UART Bluetooth transport protocol
> > implementation.
> > We are in implementation of 3 WIRE UART in hciattach.c.
> >
> > Our Specification:
> > Linux kernel - 2.4.20.
>=20
> this kernel version is a little bit problematic. Do your development
> with the 2.6.12 kernel and then backport it. Otherwise nobody will
> review it and it may become useless.
>=20
> > Module - Solicon wave Serial port Bluetooth Module.
>=20
> I can test it out with a Casira and a BlueCore4.
>=20
> > In the HCI attach, We are following the procedure of given below.
> >
> > Host side -> SYNC Command -> BT Device
> > Host side <- SYNC Response <- BT Device
> > Host Side <- SYNC Command <- BT Device
> > Host Side -> SYNC Response -> BT Device
> > Host side <- Config Command <- BT Device
> > Host side -> Config Response -> BT Device
> >
> > Here after the device does not respond for any of the commands
>=20
> Actually I have no idea why that happens, but I also don't have any
> Silicon Wave development kit at hand.
>=20
> > Please advise us whether our command sequence for the HCI attach of 3 W=
IRE
> > bluetooth device.
>=20
> Check the specification. I have no idea.
>=20
> > Our progress plan in the Implementation of H5 3 WIRE in Bluez.
> > First we attach the module HCI layer with the bluez stack.
> > Second we build the driver to usr 3 WIRE stack.
> > our plan is a proper one or not. Advise.
>=20
> You add the basic configuration stuff to hciattach like it was done for
> BCSP and then you set the TTY line discipline to N_HCI and switch to the
> 3-Wire UART protocol. However this must be implemented in hci_3wire.c
> and linked correctly into the hci_uart.ko driver. The complete protocol
> handling then has to be done inside the kernel.
>=20
> Regards
>=20
> Marcel
>=20
>=20
>=20
>=20
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