Re: brcmfmac: Failed to create interface p2p-dev-p2p0: -28 (No space left on device)

[Arend van Spriel <arend@broadcom.com>]

On 06/16/15 11:59, Jörg Krause wrote:
> Hi Arend,
>
> as I wrote in my previous mail ("brcmfmac: brcmf_p2p_create_p2pdev:
> timeout occurred") I get a p2p0 interface when loading the brcmfmac
> module with p2pon=1 (Linux kernel 4.0.5, BCM43362).
>
> Unfortunatly, if I try to use the p2p0 interface with wpa_supplicant
> 2.4 I get an error:
>
>      Failed to create interface p2p-dev-p2p0: -28 (No space left on
>      device)
>      nl80211: Failed to create a P2P Device interface p2p-dev-p2p0
>      P2P: Failed to enable P2P Device interface

Using p2pon=1 is old-school p2p, ie. it creates a regular netdev for 
doing p2p management stuff. Problem is that brcmfmac also indicates p2p 
device support. We can remove p2pon parameter or not indicate p2p dev 
support when p2pon=1.

Can you patch brcmfmac and give it a try. Need to start wpa_supplicant 
for two interface and if I recall correctly p2p0 must be specified first.

Regards,
Arend

> The command:
>
>      wpa_supplicant -Dnl80211 -ip2p0 -c /etc/p2p_supplicant.conf -N
>      -Dnl80211 -iwlan0 -c /etc/wpa_supplicant.conf -ddt&
>
> The P2P config file:
>      # cat /etc/p2p_supplicant.conf
>      ctrl_interface=/var/run/p2p_supplicant
>
>      device_name=P2P Test
>      device_type=1-0050F204-1
>
> I attached the log output from wpa_supplicant.
>
> Best regards
> Jörg Krause