Re: cdc_mbim with Huawei E3372, nothing works

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Sami Farin <hvtaifwkbgefbaei@xxxxxxxxx> writes:
> On Mon, Feb 23, 2015 at 11:59:14 +0100, Bjørn Mork wrote:
>> So my conclusion is that there is some higher level USB communication
>> problem here, not directly involving neither usbnet nor the minidriver.
>
> Do you have new ideas as to where the problem might be?
> I have now used the cdc_ether driver to transfer 1 TiB with zero rx/tx errors.

OK, that is an indication that my wild guess was wrong.

I have really no idea why this fails. We obviously do something the
modem doesn't like, but I don't know what it is.  Sorry

> I also noticed cdc_ether initialization or something does not work with kernel
> 4.0.0-rc4, I have to first setup it in 3.18.9 and then reboot to 4.0.0-rc4.

That is unexpected and even more difficult to explain.  There aren't
many changes to usbnet or cdc_ether between v3.18 and v4.0-rc4:

 bjorn@nemi:/usr/local/src/git/linux$ git log --oneline v3.18..v4.0-rc4 -- drivers/net/usb/{usbnet,cdc_ether}.c
 51487ae736fe usbnet: re-use native hex2bin()
 f46ad73ac696 cdc-ether: implement MULTICAST flag on the device
 55b42b5ca2dc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net


I gues the only possibility is the multicast filter change, but it
doesn't look like that should change anything by default.  Any ideas on
this one, Oliver?


Bjørn
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux