Re: [MM master] Re: [MM06] [PATCH] sierra: use +CFUN=4 for powering down

[Dan Williams <dcbw redhat com>]

On Tue, 2012-10-30 at 18:53 +0100, Marius Kotsbak wrote:
> Den 30. okt. 2012 18:54, skrev Dan Williams:
> > On Tue, 2012-10-30 at 18:07 +0100, Marius Kotsbak wrote:
> >> Den 09. sep. 2012 21:56, skrev Marius Kotsbak:
> >>> Den 09. sep. 2012 17:39, skrev Marius Kotsbak:
> >>>> See patch attached.
> >>>>
> >>>> sierra: use +CFUN=4 for powering down
> >>>>
> >>>>   plugins/mm-modem-sierra-gsm.c |   32 ++++++++++++++++++++++++++++++++
> >>>>   1 file changed, 32 insertions(+)
> >> See attached patch to avoid that this change causes reset when changing
> >> to cfun=1 (as we avoid running +cfun=1 if it is already in mode 1 and
> >> with this change it will be in mode 4).
> > Pushed, thanks!  Bonus points for a patch for MM_06?  You'll have to
> > override MM_GENERIC_GSM_PROP_POWER_UP_CMD like plugins/mm-modem-nokia.c
> > does by implementing get_property/set_property in the sierra plugin but
> > that's about it.
> 
> Of course, already done, attached! :)

So I'd love to do this, and I actually pushed it along with a fix to
Sierra.  But then when testing it out with my 8775 and 8781, they both
crash when going from CFUN=4 -> CFUN=1.  I've always had
reliability/crashing issues with the 8775, and I've even bought 4
separate devices to figure out if the hardware was the problem.  I even
tried them in 3 different carriers, including one with external power,
to ensure that they were getting enough current when powering on the
radios.  No luck.  The USB sticks and CardBus devices I have seem to do
just fine though.  Thoughts?  If anyone has an internal Sierra card,
maybe they could test and see if they have the same problems I do.

Dan