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

["Jörg Krause" <joerg.krause@embedded.rocks>]

Hi Arend,

On Di, 2015-06-16 at 16:26 +0200, Arend van Spriel wrote:
> 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.

I used p2pon because the p2p0 interface is not created without it. It
fails with the error message "brcmf_p2p_create_p2pdev: timeout
occurred" as written in my previous mails. I would prefer not to use
it, so maybe we can find a solution how to get it working without it.

> 
> 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.

Can you give me a hint where to patch brcmfmac. Many thanks!

Best regards
Jörg Krause