Querying WWAN iface name for each /dev/cdc-wdm device

[Aleksander Morgado]

On Wed, Jan 28, 2015 at 1:52 PM, Bjørn Mork <bjorn at mork.no> wrote:
>
>
> On 28 January 2015 13:09:02 CET, Aleksander Morgado <aleksander at aleksander.es> wrote:
>>On Tue, Jan 27, 2015 at 5:19 PM, Aleksander Morgado
>><aleksander at aleksander.es> wrote:
>>> On Tue, Jan 27, 2015 at 4:08 PM, Bjørn Mork <bjorn at mork.no> wrote:
>>>>> In order to handle the case of the renames, I guess libqmi
>>shouldn't
>>>>> cache the net iface name the first time it's read, right? I mean if
>>>>> someone calls qmi_device_get_wwan_iface() we better get the
>>filename
>>>>> directly from sysfs every time?
>>>>
>>>> Yup, that's necessary if you care about the name. Note that this is
>>racy
>>>> in any case, so you do risk that the name refers to something else
>>by
>>>> the time you present it to the user. But I don't know if we should
>>>> care.  I cannot imagine a real rename use case after device
>>discovery is
>>>> completed.
>>>
>>> Agreed; will go on with those changes then.
>>>
>>>
>>
>>How about now?
>>
>>http://cgit.freedesktop.org/libqmi/commit/?h=aleksander/wwan-iface-2&id=db41fa4d6da83dfe108a72c35120187c7bb516b2
>>
>>The logic should first look at "usbmisc", and if not found, fallback
>>to "usb"; that's correct, right?
>
> Yes, the class name was "usb" in older kernels. Don't remember when this was changed, but I guess it doesn't matter. We must handle both forever...
>

Yeah :)


-- 
Aleksander
https://aleksander.es