Re: [Bluez-users] Setting up an hotplug connection with USB dongles

[Marcel Holtmann <marcel@holtmann.org>]

Hi Rainer,

> I am wondering, if there is a way to setup a hotplug connection between two 
> Linux machines using two bluetooth dongles. One of them is a NAP (with 
> Internet access) and booted first, the other box a PANU.
> 
> My problem is that I need the pand running on both sides first before I can do 
> an ifconfig for the bnep0 interface on the NAP.
> 
> 
> 
> What I did on both Debian Linux systems is:
> 
> Add a file
> 
> /etc/hotplug/usb/libbt.usermap
> 
> The file contains a line for an epox DG02A dongle
> 
> epoxbt                0x0003 0x0a12   0x0001    0x0000       0x0000       0x00         
> 0x00            0x00            0x00            0x00            0x00            
> 0x00000000
> 
> with the vendor ID (here 0x0a12) and the product ID (here 0x0001).
> 
> Then add the script epoxbt to the same directory:
> 
> # cat epoxbt
> echo "Load epox bluetooth dongle..."
> 
> modprobe bnep
> pand --master --listen --role NAP
> #
> 
> and 
> 
> topsi:~# cat /etc/hotplug/usb/epoxbt
> #!/bin/bash
> 
> echo "Load epox bluetooth dongle..."
> modprobe bnep
> pand --role PANU --connect <BT-ID>
> topsi:~#
> 
> 
> Then I do on the NAP an 
> 
> # ifconfig 192.128.2.1
> 
> and on the PANU
> 
> # dhclient
> 
> This works fine, I can access the Internet from the PANU.
> 
> 
> The problem is that the ifconfig on the NAP fails when I do not have the PANU 
> connected before....thus I can't add the network configuration part into the 
> expobt scripts.
> 
> Does anyone have an idea or pointer for that problem.

since this is Debian, don't do it like this. Use /etc/network/interfaces
and add up and down rules.

Regards

Marcel




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