Patch: Mobile dongles

forster at forster at
Mon Mar 26 07:17:14 EDT 2012


I have noticed another issue with the mobile dongle. OS31, XO-1.75
Press the power button once and wait for sleep. The dongle remains powered on (which is a good or bad thing depending on your point of view), then press the power button to wake the laptop, the dongle is briefly turned off and the connection is lost, negating any benefit from keeping it powered during sleep.


> On Mon, 2012-03-26 at 16:44 +1100, forster at wrote:
> > David
> > 
> > This message was sent with a gsm dongle on an xo-1
> >  
> >  modem:Huawei E160E
> >  carrier:Locked to Dodo (an Optus reseller)
> >  XO-1
> >  OS31 development which is same as os884 signed
> >  
> >  in my settings, enter username, password, leave *99# unaltered, dodolns1, blank, blank
> >  
> >  turn off power management, because XO looses connection in sleep mode
> I have an enhancements to powerd to inhibit suspend for that issue. The
> attached proof of concept patch is heavy on tracing, should apply, maybe
> with an offset, and needs /etc/powerd/flags/modules-inhibits created
> containing usb_wwan. Once usb_wwan is inserted in the kernel, it remains
> in memory you can have NM dispatcher or pppd remove the module when the
> connection is torn down to restore normal power management operation.
> These features are in testable with au210. Sorry 4g images only, with no
> firmware in the image.
> Jerry
> _____________________________________________________
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