Unfortunately this did nothing. Not even some dmesg output.
I have tried restarting network-manager but there was also nothing.
I don't have a wwan interface by default. Only when manually loading
usbserial I can wwdial using pppd (manually).
On 07/23/2014 12:29 PM, Bjørn Mork wrote:
> Stanescu Victor <Victor.Stanescu@xxxxxxxxx> writes:
>
>> victor@victor-laptop:~$ lsusb -vd 03f0:521d
> [..]
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 4
>> bAlternateSetting 1
>> bNumEndpoints 3
>
> Yup, there's the expected 3 endpoint altsetting.
>
>
>
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 129
>> bNumInterfaces 3
>> bConfigurationValue 2
>> iConfiguration 3 configuration 1
>> bmAttributes 0xa0
>> (Bus Powered)
>> Remote Wakeup
>> MaxPower 500mA
>> Interface Association:
>> bLength 8
>> bDescriptorType 11
>> bFirstInterface 0
>> bInterfaceCount 2
>> bFunctionClass 2 Communications
>> bFunctionSubClass 14
>> bFunctionProtocol 0
>> iFunction 0
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 2 Communications
>> bInterfaceSubClass 14
>> bInterfaceProtocol 0
>> iInterface 0
>> CDC Header:
>> bcdCDC 1.10
>> CDC MBIM:
>> bcdMBIMVersion 1.00
>> wMaxControlMessage 1024
>> bNumberFilters 16
>> bMaxFilterSize 20
>> wMaxSegmentSize 1500
>> bmNetworkCapabilities 0x20
>> 8-byte ntb input size
> And this was what I was hoping for in the 2nd configuration. You should
> be able to use this with the cdc_mbim driver and a very recent
> ModemMananager without adding any device IDs.
>
> But I don't understand how you ended up with Linux selecting cfg #1 by
> default? I thought Linux would prefer cfg #2 here because the first
> interface has a proper class. Strange. In any case, you should be able
> to switch to it by using
>
> echo 2 > /sys/bus/usb/devices/x-y/bConfigurationValue
>
> where 'x-y' is the bus and port the device is connected to.
>
>
>
> Bjørn
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