[Librem-5-dev] Difficulties with serial of USB

[Jeremiah C. Foster]

On Thu, 2019-02-07 at 07:00 -0800, Angus Ainslie via Librem-5-dev
wrote:
>     On 2019-02-07 5:44 a.m., Jeremiah C.
>       Foster via Librem-5-dev wrote:
> 
>     
>     
> >       
> >       On Wed, 2019-02-06 at 14:31 -0800, Angus Ainslie via
> >         Librem-5-dev wrote:
> >       
> > >         Hi Jeremiah,
> > >       
> > 
> >       
> > 
> >       
> >       Thanks for the reply Angus,
> >       
> > 
> >       
> >       
> > >  On 2019-02-06 1:33 p.m.,
> > >         Jeremiah C. Foster via Librem-5-dev wrote:
> > > 
> > >         
> > > > Hi,
> > > > 
> > > >           
> > > > 
> > > >           My devkit shows up in dmesg;
> > > > 
> > > >           
> > > > 
> > > >           #  dmesg | grep cdc
> > > > 
> > > >           [10232.643261] cdc_acm 1-6.1:1.1: ttyACM0: USB ACM
> > > > device
> > > > 
> > > >           [10232.647089] usbcore: registered new interface
> > > > driver
> > > >           cdc_acm
> > > > 
> > > >           [10232.647095] cdc_acm: USB Abstract Control Model
> > > > driver for
> > > >           USB
> > > > 
> > > >           modems and ISDN adapters
> > > > 
> > > >           [10245.873686] cdc_acm 1-6.1:1.1: failed to set
> > > > dtr/rts
> > > > 
> > > >           
> > > > 
> > > >           But it disappears at some point because I cannot find
> > > > it in
> > > >           /dev/ nor
> > > > 
> > > >           connect using picocom. 
> > > > 
> > > >           
> > > > 
> > > >           When I reboot the device into another mode than emmc,
> > > > it shows
> > > >           up as a
> > > > 
> > > >           USB HID which I imagine is the expected behavior. I'm
> > > > working
> > > >           from
> > > > 
> > > >           here: 
> > > > 
> > > >           
> > > > https://developer.puri.sm/Librem5/Development_Environment/Boards/imx8.html#dev-board-figure
> > > > 
> > > >           
> > > > 
> > > >           I wonder if anyone else has seen this behavior?
> > > >         
> > >         Is this with the image the devkit originally shipped with
> > > or
> > >           has it been upgraded ?
> > >       
> > 
> >       
> > 
> >       
> > 
> >       Yes, this is the original image.
> >     
> 
>     I think you should reflash with the latest image as that has a
>       number of fixes including some that make ssh work better.
> 
>     It looks like the laboratory image is working now but I haven't
>       used that one
> 
>     https://arm01.puri.sm/job/Images/job/Image%20Build/1154/
>     There is also the buster based image
>     https://arm01.puri.sm/job/Images/job/Image%20Build/1151/
>     

Thanks, I'll try these out!

Cheers,

Jeremiah


    
>     Angus
> 
>     
>     


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