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Date: Fri, 3 Dec 2010 15:07:00 -0300
Message-ID: <AANLkTi=gWTQXcfisupHXs9qVpHbUbYZ1yxxqKf2Mm9EU@mail.gmail.com>
Subject: Re: Are LE connections possible yet?
From: Claudio Takahasi <claudio.takahasi@openbossa.org>
To: Mike Tsai <Mike.Tsai@atheros.com>
Cc: Brian Gix <bgix@codeaurora.org>,
	"linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
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Sender: linux-bluetooth-owner@vger.kernel.org
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Hi All,

On Thu, Dec 2, 2010 at 10:21 PM, Mike Tsai <Mike.Tsai@atheros.com> wrote:
> Hi Brian,
>
> -----Original Message-----
> From: linux-bluetooth-owner@vger.kernel.org [mailto:linux-bluetooth-owner@vger.kernel.org] On Behalf Of Brian Gix
> Sent: Thursday, December 02, 2010 3:46 PM
> To: linux-bluetooth@vger.kernel.org
> Subject: Are LE connections possible yet?
>
> Hi All,
>
> I am bringing up an LE capable (BR/EDR/LE) baseband, and attempting to use
> it to establish a
> GATT/ATT connection over an LE link.  However when executing the command:
>
> % ./tools/hcitool lecc 00:14:BB:55:66:77
>
> I get a very rapid failure of:
>
> "Could not create connection: Operation not permitted"
>
> The correct HCI command does not appear to be making it to the BR/EDR/LE
> baseband.
>
> It appears to be a socket issue of some sort.  I can cause this error, when
> attached to the baseband, and:
> "Could not create connection: File descriptor in bad state"
>
> if I have not yet run hciattach.
>
> Other (BR/EDR) hcitool commands work as expected, such as "hcitool scan" and
> "hcitool inq"
> [MTsai]which kernel driver you are using? It seems the kernel does not know the LE create connection OpCode?
>
>
> Brian Gix
> bgix@codeaurora.org
> Employee of Qualcomm Innovation Center, Inc.
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
>
>
>
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For hcitool lecc it is not necessary a LE "capable" kernel, hcitool
sends the HCI commands from the userspace.
Try sudo hcitool lecc ... and don't forget putting the remote on
advertising mode: $hciconfig hcix leadv

If you want to test the connections managed by the kernel use Ville's kernel:
git://git.kernel.org/pub/scm/linux/kernel/git/vtervo/bluetooth-le-2.6.git

l2test support LE connections, use -J option to pass the fixed channel 4

Regards,
Claudio