P2P_DEVICE support in Android KitKat

Arend van Spriel arend
Wed Sep 10 07:22:55 PDT 2014

On 09/10/14 16:00, Peer, Ilan wrote:
> Hi Arend,
> We've encountered this issue in the past, and resolved it by passing the wpa_supplicant a P2P specific configuration file using the -m option. Try using -m but do not populate it with any network blocks that are not P2P groups.
> Hope this helps,

Thanks, Ilan

Got the hint from brcm colleague as well.


> Ilan.
>> -----Original Message-----
>> From: linux-wireless-owner at vger.kernel.org [mailto:linux-wireless-
>> owner at vger.kernel.org] On Behalf Of Jouni Malinen
>> Sent: Wednesday, September 10, 2014 14:11
>> To: Arend van Spriel
>> Cc: linux-wireless at vger.kernel.org; brcm80211 development;
>> hostap at lists.shmoo.com
>> Subject: Re: P2P_DEVICE support in Android KitKat
>> On Wed, Sep 10, 2014 at 09:30:05AM +0200, Arend van Spriel wrote:
>>> I am running some tests on a haswell target with Android KitKat
>>> (3.10.20 kernel). In this configuration our brcmfmac driver is used
>>> with driver param 'p2p_device=1'. So we end up with wlan0 and
>>> p2p-dev-wlan0 interfaces (can blame myself for that). The
>>> configuration has a network configured, but I did not expect
>>> wpa_supplicant to start association using the p2p device interface.
>>> The wlan0 interface is already connected to the AP. How can I fix this
>>> to assure p2p-dev-wlan0 is only used for p2p management scenarios.
>> Hmm.. Can you please show the wpa_supplicant command line that is used
>> here and describe how that network block gets configured for the
>> p2p-dev-wlan0 "interface"? I would have expected that there would never
>> be a configuration with an enabled network block being passed for the P2P
>> management interface.. Internally, wpa_supplicant should not add such for
>> P2P groups, but I don't think there is any filtering on configuration if
>> something is externally trying to make wpa_supplicant use that management
>> interface for a station mode connection.
>> --
>> Jouni Malinen                                            PGP id EFC895FA
>> --
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