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Re: [ipw3945-devel] iwl3945 rfkill regression

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On Jan 22, 2008 9:24 PM, drago01 <drago01@xxxxxxxxx> wrote:
> On Jan 22, 2008 9:21 PM, Winkler, Tomas <tomas.winkler@xxxxxxxxx> wrote:
> >
> >
> > >-----Original Message-----
> > >From: drago01 [mailto:drago01@xxxxxxxxx]
> > >Sent: Tuesday, January 22, 2008 10:12 PM
> > >To: Winkler, Tomas
> >
> > >Cc: ipw3945-devel; Cahill, Ben M; Zhu, Yi; linux-wireless
> > >Subject: Re: [ipw3945-devel] iwl3945 rfkill regression
> > >
> > >On Jan 22, 2008 9:07 PM, Winkler, Tomas <tomas.winkler@xxxxxxxxx>
> > wrote:
> > >>
> > >> I believe it's delaying uCode load to mac_start - still need to be
> > >> polished.
> > >
> > >ok, thx for the quick reply.
> > >If you have any potential fixes I would be happy to test them ;)
> >
> > Can you get me the sequence it is happening? RF kill switch is off
> > before you power up the laptop or after, during association or in
> > unassociated state..etc
> > Thanks
>
> I boot with rf kill off = device on
> acciotate using NM
> kill the card by pressing the rfkill (ie. setting it to on)
> card is dead (like described in my first mail), until I relaod the module
> the rfkill switch  does not have any effect at this time.
>

OK, I investigated a bit and it seems to be the "disable interrupt
when device goes down" is the problem.
In my case NetworkManager detected the rfkill and brought the device
down, which caused the interrupt to be disabled. Now after pressing
the rfkill again nothing happend. But if I bring the device back up
the interrupt is enabled again and rfkill and the card is back to
live.
So in short disabling the interrupt in mac_stop breaks the hw rfkill
while the interface is down.
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