Re: Qualcomm "raw IP" mode (was Re: Huawei E398 cdc/serialmodem-ppp 3G/4G)

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"Stojsavljevic, Zoran" <zoran.stojsavljevic@xxxxxxxxx> writes:

> Hello Bjorn,
>
> One question out of curiosity... I am trying to ping from host
> to target, and I see perfect ARP request coming to the target
> (all 42 octets as required).
>
> But I do not see any reply from the target. It seems to me, 
> According what I am reading that something is very wrong
> configured in my menuconfig.
>
> I do not see any messages coming to RNDIS (as you have
> mentioned), especially to > skb_pull(skb, ...).
>
> I have in lsmod :
> Module                  Size  Used by
> cdc_ether               9612  0 
> cdc_subset              3069  0 
> usbnet                 28738  2 cdc_ether,cdc_subset
> mii                     4310  1 usbnet
>
> And as outcome of cat /proc/bus/usb/devices 
>
> T:  Bus=02 Lev=02 Prnt=03 Port=00 Cnt=01 Dev#= 18 Spd=12  MxCh= 0
> D:  Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs=  2
> P:  Vendor=0525 ProdID=a4a2 Rev= 3.27
> S:  Manufacturer=Linux 2.6.34.10-WR4.3.0.0_standard with max_udc
> S:  Product=RNDIS/Ethernet Gadget
> C:  #Ifs= 2 Cfg#= 2 Atr=c0 MxPwr=  2mA
> A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=06 Prot=00
> I:  If#= 0 Alt= 0 #EPs= 0 Cls=02(comm.) Sub=02 Prot=ff Driver=
> I:  If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=
> E:  Ad=83(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> E:  Ad=01(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr=  2mA
> I:* If#= 0 Alt= 0 #EPs= 0 Cls=02(comm.) Sub=06 Prot=00 Driver=(none)
> I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_subset
> I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_subset
> E:  Ad=83(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> E:  Ad=01(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
>
> According to what you wrote, I should have as lsmod ONLY g_ether
>  And outcome of cat /proc/bus/usb/devices
>
> I:* If#= 0 Alt= 0 #EPs= 0 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether
> I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
> I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
>
> Could you, please, elaborate more of this, what I wrote?!

I am sorry, bu I do not really understand your question or how it is
related to the host side driver I'm playing with.  I do not have any
access to the target side.



Bjørn
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