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Re: how to map devices to a "wlan" name

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Gerrit, William,


Thanks for your replies. it did give me some ideas.

In the end, I found two sollutions.

- patch the linux kernel-mmodule so it gives a different name.

I am patching the module-source anyway as I modifying wifi devices to 
operate on ham-radio frequencies.


- do not use "/etc/network/interfaces" to actually configure the 
devices; but just use them to start an external script and put the 
intelligence in there: determine the type of wifi-device based on 
"iwlist freq" and work from there on.


Thanks!

Cheerio! Kr. Bonne.



On 19-03-16 02:37, William Unruh wrote:
> On 2016-03-19, Gerrit van den Hanenberg <gvdnh@xs4all.nl> wrote:
>> UDEV normally makes sure they always get the same name
>>
>> /etc/udev/rules.d/70-persistent-net.rules the MAC address is used as the
>> unique identifier
>>
>> kristoff wrote:
>>
>>> Hi,
>>>
>>>
>>> I want to use a raspberrrypi with two wifi devices (as a meshed-network
>>> node). They show up a sdevice "wlan0" and "wlan1";
>>>
>>> Question:
>>> How is determined what device is given what name? Is there a fixed order
>>> in this.
>>>
>>>
>>> (the problem is I want to configure them in /etc/network/interfaces, but
>>> as one device runs on the 2.4 Ghz band and the other on 5 Ghz band, they
>>> have a different configuration).
>>>
>>>
>>> I am looking for a setup which is as generic as possible. (e.d.
>>> usb-deviceid based, device serial-number ?)
>>>
>>>
>>> Any idea ???
>
> The new procedure numbers them according to their address on the pci
> bus. Thus you get wlp3s25, or wlp0s6 which are stable, and once you have
> figured out the mapping from the random numbers to your particular
> device it will stay that way (unless you put them into some other place
> on the bus) This was precisely to "solve" the problem you are having. As
> stated on the older distros, use the udev rules to assign the number to
> a specific name.
>
>

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Thread

how to map devices to a "wlan" name kristoff <kristoff@skypro.be> - 2016-03-19 00:35 +0100
  Re: how to map devices to a "wlan" name Gerrit van den Hanenberg <gvdnh@xs4all.nl> - 2016-03-19 02:20 +0100
    Re: how to map devices to a "wlan" name William Unruh <unruh@invalid.ca> - 2016-03-19 01:37 +0000
      Re: how to map devices to a "wlan" name kristoff <kristoff@skypro.be> - 2016-03-20 19:27 +0100

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