gmane.linux.kernel.wireless.general

wpa supplicant interface up delay

                         * Wait some time to allow driver to initialize before
                         * starting configuring the driver. This seems to be  
                         * needed at least some drivers that load firmware etc.
                         * when the interface is set up.

which drivers are those, and why can't we fix the drivers instead? This
seems like a bug in the drivers that they return from their open
callback prematurely.

johannes

headers

Johannes Berg | 7 Oct 20:18

Re: wpa supplicant interface up delay

On Tue, 2008-10-07 at 20:16 +0200, Johannes Berg wrote:
> * Wait some time to allow driver to initialize before
>                          * starting configuring the driver. This seems to be  
>                          * needed at least some drivers that load firmware etc.
>                          * when the interface is set up.
> 
> which drivers are those, and why can't we fix the drivers instead? This
> seems like a bug in the drivers that they return from their open
> callback prematurely.

In any case, this delay should certainly be removed from the nl80211
driver; when porting drivers to the new APIs we can make sure this is
done correctly.

johannes

headers

John W. Linville | 7 Oct 20:18

Re: wpa supplicant interface up delay

On Tue, Oct 07, 2008 at 08:18:18PM +0200, Johannes Berg wrote:
> On Tue, 2008-10-07 at 20:16 +0200, Johannes Berg wrote:
> > * Wait some time to allow driver to initialize before
> >                          * starting configuring the driver. This seems to be  
> >                          * needed at least some drivers that load firmware etc.
> >                          * when the interface is set up.
> > 
> > which drivers are those, and why can't we fix the drivers instead? This
> > seems like a bug in the drivers that they return from their open
> > callback prematurely.
> 
> In any case, this delay should certainly be removed from the nl80211
> driver; when porting drivers to the new APIs we can make sure this is
> done correctly.

ACK

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headers

Jouni Malinen | 7 Oct 21:44

Re: wpa supplicant interface up delay

On Tue, Oct 07, 2008 at 08:16:01PM +0200, Johannes Berg wrote:
>                          * Wait some time to allow driver to initialize before
>                          * starting configuring the driver. This seems to be  
>                          * needed at least some drivers that load firmware etc.
>                          * when the interface is set up.
> 
> which drivers are those, and why can't we fix the drivers instead? This
> seems like a bug in the drivers that they return from their open
> callback prematurely.

I've observed issues with a driver that (at least at the time) was not
fully open source. I didn't feel like fixing the driver at the time.

Anyway, I'm perfectly fine with removing this from nl80211. As far as
driver_wext.c is concerned, I would like to first verify what the
original issue is and whether the driver could be fixed easily.

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Jouni Malinen                                            PGP id EFC895FA
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