Re: [PATCH v2 02/16] wl1251: add sysfs interface for bluetooth coexistence mode configuration

[Pali RohÃr]

On Tuesday 10 December 2013 16:46:54 Kalle Valo wrote:
> Pali RohÃr <pali.rohar@xxxxxxxxx> writes:
> > From: David Gnedt <david.gnedt@xxxxxxxxxxx>
> > 
> > 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.
> > 
> > Signed-off-by: David Gnedt <david.gnedt@xxxxxxxxxxx>
> > Signed-off-by: Pali RohÃr <pali.rohar@xxxxxxxxx>
> 
> I think this is also what I wrote a long time. And also this
> sysfs hack should not go to upstream.
> 
> Over the years there has been some talk about solving the BT
> coex properly, but I haven't seen any patches. I guess the
> proper solution would be that BT subsystem in kernel would
> notify wireless drivers about BT use?

See other drivers in upstream, they doing something similar...

-- 
Pali RohÃr
pali.rohar@xxxxxxxxx

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