MC7455 in X220 with ModemManager 1.6.4

[Dan Williams]

On Fri, 2017-06-09 at 01:25 +0200, Dominik Strnad wrote:
> Hello Bjorn,
> 
> thank you. I meanwhile succeeded to get car into online mode by
> isolating
> pin20 on minPCIe card. But I at least confirm, that after using
> ENTERCND
> the PCOFFEN do not report error anymore (but the card was already not
> in
> disable state because of pin isolation. But I have a question - what
> is
> better? To use your command (probably as part of some udev rule?) or
> keep
> that pin isolated? Thank you.

Ideally figure out why BIOS isn't letting the card be enabled :)

But failing that, either PCOFFEN or the taping of pin20 are probably
fine.  PCOFFEN is likely the better solution, though that may be reset
on firmware updates.

Dan


> BR
> Dominik
> 
> On Fri, Jun 9, 2017 at 12:25 AM, Bjørn Mork <bjorn at mork.no> wrote:
> 
> > Dan Williams <dcbw at redhat.com> writes:
> > > On Thu, 2017-06-08 at 23:57 +0200, Dominik Strnad wrote:
> > > 
> > > > AT!PCINFO?
> > > > 
> > > > State: Low Power Mode
> > > > LPM voters - Temp:0, Volt:0, User:0, W_DISABLE:1, IMSWITCH:0,
> > > > BIOS:0,
> > > > LWM2M:0, 0
> > > > LPM pe
> > > 
> > > Yeah, the PCOFFEN is a command from older, pre-Gobi devices.  Not
> > > surprised it doesn't work here, but at least PCINFO does.
> > 
> > It's password protected. It needs
> > 
> >   AT!ENTERCND="A710"
> > 
> > first.
> > 
> > 
> > Bjørn
> >