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Subject: Re: [Bluez-users] H5 3 wire UART connect problem
From: Marcel Holtmann <marcel@holtmann.org>
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Date: Thu, 30 Jun 2005 20:51:49 +0200

Hi Hariharan,

> We are presently working on Silicon wave Serial Port Bluetooth module
> with Linux version 2.4.20.
> When we try to attach the UART with HCI layer.
> 
> Bluetooth module : Silicon Wave bluetooth module. (H5 3 Wire interface)
> Linux Kernel : 2.4.20.
> 
> We have done different trial with the module. Below we have given two
> of them major, that we have noticed in our experiment.
> 
> Experiment 1:
> When we connect Bluetooth module with the full functional serial port
> (thatr contains Hard ware flow control)
> The HCI layer is attached with UART layer.
> But when we try to UP the HCI0 it returns
> cannot Init Device hci0.
> 
> Experiment 2:
> When we connect the Bluetooth module with 3 WIRE serial cable (consist
> of TXD, RXD and GND)
> 
> hciattach /dev/ttyS0 swave 115200 noflow
> 
> Actually our plan is to work the bluetooth with 3WIRE (H5) Bluetooth interface.
> Kindly confirm whether the HCI_UART_3WIRE functionality is included in
> the linux kernel.

actually nobody implemented the 3-Wire UART support for BlueZ.

Regards

Marcel




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