Subject: RE: [Bluez-devel] HCI data packet
From: Marcel Holtmann <marcel@holtmann.org>
To: bluez-devel@lists.sourceforge.net
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References: <20050901145400.BB3131EC845@mrelay1.st2.lyceu.net>
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Date: Mon, 05 Sep 2005 14:00:28 +0200

Hi Esther,

> Regarding HCI data packets and BlueZ...
> 
> If I use the BlueZ command "hci_create_connection" and connect to another
> device, how do I sent an HCI data packet to this device?

you need to use the raw socket for it and then follow the H:4 protocol,
but doing any communication this way is not a good idea. You have to
deal with different packet sizes and handle the ACL-cont flag. Even for
a very simple protocol you should use L2CAP. The overhead of L2CAP is
really not that much.

Regards

Marcel


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