OpenWRT - MC7455 (MBIM) not working as expected.

Mark Wahlert mark.wahlert at gmail.com
Wed Jan 25 20:22:08 UTC 2017


  
  
LEDE kernel for my particular device is 4.4.42, I'll try to compile with MM in the next day or two and report my findings.
  

  
Clearly it is not an issue on Ubuntu 16.10.  

  
   This (https://itunes.apple.com/app/apple-store/id922793622?pt=814382&mt=8&ct=how_i_email)  is how I Email now
  
  
  
  
  

  
  
>   
> On Jan 25, 2017 at 3:17 PM,  <Bjørn Mork (mailto:bjorn at mork.no)>  wrote:
>   
>   
>   
>  Aleksander Morgado  <aleksander at aleksander.es (mailto:aleksander at aleksander.es)>  writes:  
> >   On Wed, Jan 25, 2017 at 6:49 PM (x-apple-data-detectors://2), Mark Wahlert  <mark.wahlert at gmail.com (mailto:mark.wahlert at gmail.com)>  wrote:  
> >>  Did you have an opportunity to check which kernel version you've had MBIM  
> >>  working with successfully?  
> >   
> >  I tested with 4.4.14. Maybe I was just lucky enough to be testing with  
> >  a slow system and I didn't hit the bug fixed by Bjørn's patch?  
>
> Note that I never noticed this issue on my previous laptop (a 2008 model  
> Thinkpad X301), and it wasn't *that* slow :)  
>
> But I could just have been lucky because I had every possible debug  
> message enabled, and the "fix" is simply a very short additional delay  
> during probing. You don't need to add much extra code there to achieve  
> the same effect.  
>
> The reason I brought it up, is that I saw another report of similar  
> failure on a Linksys WRT1900ACS recently. So I'm open for the thought  
> that newer wifi routers are powerful enough to make it a problem. I  
> didn't initially believe so.  
>
> Anyway, I'm really curious to know if the patch solves the problem.  
> Because I'm still not certain that this is the case.  
>
>
> Bjørn  
>            
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