netdev - Re: btcoex subsystem

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Message-Id: <D5A7B08D-EA98-4A6E-A6BF-E19D87B5066A@holtmann.org>
Date:	Thu, 12 Feb 2015 12:28:46 -0800
From:	Marcel Holtmann <marcel@...tmann.org>
To:	Kalle Valo <kvalo@...eaurora.org>
Cc:	Larry Finger <Larry.Finger@...inger.net>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	Troy Tan <troy_tan@...lsil.com.cn>, netdev@...r.kernel.org,
	linux-bluetooth@...r.kernel.org
Subject: Re: btcoex subsystem

Hi Kalle,

>>> I will work on combining the latest BT drivers from Realtek with
>>> btusb to see if I can achieve a patch that will both work with the
>>> Realtek hardware, and get approval from the reviewers.
>>> 
>>> What would be an approved method of communicating between two kernel
>>> modules? Is there some example in the kernel that I could study?
>> 
>> We need a btcoex subsystem that both WiFi and Bluetooth can register
>> to and communicate with.
> 
> The need for this seems to periodically come up, I remember needing
> something like that back in the Maemo wl1251 days and also ath6kl needed
> this. Are there any ideas for this subsystem? How would this btcoex
> subsystem work? What kind of information would it provide?
> 
> Is this something we should discuss at Ottawa?

sadly something came up and I am not making it to Ottawa. However we should be talking about this at some point since Bluetooth has MWS for its coexistence which could be a good starting point. Something we have to look into for the Bluetooth subsystem at some point.

Regards

Marcel

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