netdev - Re: [PATCH v2] wl1251: add sysfs interface for bluetooth coexistence mode configuration

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Message-ID: <20160114091654.GA15380@amd>
Date:	Thu, 14 Jan 2016 10:16:54 +0100
From:	Pavel Machek <pavel@....cz>
To:	Arend van Spriel <arend@...adcom.com>
Cc:	Pali Rohár <pali.rohar@...il.com>,
	Kalle Valo <kvalo@...eaurora.org>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, David Gnedt <david.gnedt@...izone.at>
Subject: Re: [PATCH v2] wl1251: add sysfs interface for bluetooth coexistence
 mode configuration

On Wed 2016-01-13 23:32:47, Arend van Spriel wrote:
> On 12/26/2015 12:45 PM, Pali Rohár wrote:
> >Port the bt_coex_mode sysfs interface from wl1251 driver version included
> >in the Maemo Fremantle kernel to allow bt-coexistence mode configuration.
> >This enables userspace applications to set one of the modes
> >WL1251_BT_COEX_OFF, WL1251_BT_COEX_ENABLE and WL1251_BT_COEX_MONOAUDIO.
> >The default mode is WL1251_BT_COEX_OFF.
> >It should be noted that this driver always enabled bt-coexistence before
> >and enabled bt-coexistence directly affects the receiving performance,
> >rendering it unusable in some low-signal situations. Especially monitor
> >mode is affected very badly with bt-coexistence enabled.
> 
> So what user-space process will be using this interface. Did you consider
> adding debugfs interface? In case of monitor mode you could consider
> disabling bt-coex from within the driver itself.

This aint no debugging feature.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html