:: Re: [DNG] vdev
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Lähettäjä: aitor_czr
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Vastaanottaja: shraptor, dng
Aihe: Re: [DNG] vdev


On 08/06/2016 04:38 PM, shraptor <shraptor@???> wrote:
> On 2016-08-06 10:15, aitor_czr wrote:
>> >Hi,
>> >
>> >On 08/05/2016 09:09 PM, Joel Roth<joelz@???> wrote:
>> >
>>> >>Didier Kryn wrote:
>>> >>
>>>>> >>>>No news from Jude for almost one year:-(
>>> >>
>>> >>Commits to vdev on github are as recent as April this year.
>>> >>Also, I think his continued work depends on feedback from testers.
>>> >>
>>>>> >>>>I'm partial time reading documentation and sources and
>>>> >>>considering
>>>>> >>>>rolling my own hotplugger, simpler than vdev - Jude has done an
>>>> >>>enormous
>>>>> >>>>work and vdev is a complex software with hundreds of scripts,
>>>> >>>too complex
>>>>> >>>>for me.
>>> >>
>>> >>sysvinit also has lots of scripts!
>>> >>
>>> >>But vdev has 33 not in helpers/ and all of those are fairly
>>> >>simple.
>>> >>
>>>>> >>>>Reading uevents from netlink and parsing them is easy, but
>>>> >>>I'm not sure
>>>>> >>>>to know what to do with these events. My first conclusion is
>>>> >>>that
>>>>> >>>>when there is MODALIAS=something, then I just have to
>>>> >>>modprobe a
>>>>> >>>>module's alias
>>>>> >>>>when there is FIRMWARE=something, I just need to transfer
>>>> >>>the firmware
>>>>> >>>>by some well defined API
>>>>> >>>>otherwise it is more complicated because there are many
>>>> >>>different cases
>>>>> >>>>(not all drivers provide the same uevent contents); but the job
>>>> >>>is to
>>>>> >>>>create/delete a device file, and set owner/permissions and
>>>> >>>symlinks; but
>>>>> >>>>some devices are neither char nor block (eg network devices) and
>>>> >>>I don't
>>>>> >>>>know what to do with them.
>>>>> >>>>
>>>>> >>>>For this reason, I'm tempted to clone mdev and only change
>>>> >>>the way it is
>>>>> >>>>invoked. mdev is spawned for every uevent through the
>>>>> >>>>/proc/sys/kernel/hotplug mechanism; instead I would prefer one
>>>> >>>long-lasting
>>>>> >>>>daemon reading uevents from netlink. The design of mdev makes
>>>> >>>full sense for
>>>>> >>>>embeded devices, but not for others.
>>>>> >>>>
>>>>> >>>>I'm sure mdev is very well written, because it has been
>>>> >>>written,
>>>>> >>>>maintained, and reviewed by highly skilled professionals. I have
>>>> >>>also found
>>>>> >>>>a netlink reader at Skarnet, which is certainly written with
>>>> >>>great care but
>>>>> >>>>does not seem very usefull since it just forwards the uevents to
>>>> >>>standard
>>>>> >>>>output as they come; but It might be instructive to look if it
>>>> >>>uses any
>>>>> >>>>special trick to read the netlink.
>>>>> >>>>
>>>>> >>>>Any suggestions are welcome - there are still a lot of
>>>> >>>devices I don't
>>>>> >>>>know anything about.
>>> >>
>>> >>It's your decision to write your own. However Jude's work is
>>> >>technically interesting, and can be tested without changing
>>> >>out udev.
>>> >>
>>> >>Perhaps it just needs some additional user help in the form
>>> >>of documentation, tutorials, etc.
>>> >>
>>> >>have fun,
>>> >>
>>> >>Joel
>> >
>> >As i announced yersterday in the IRC Channel, i just uploaded the
>> >repository of gnuinos containing (in addition to linux-libre-4.6.2 and
>> >simple-netaid) the packages of vdev:
>> >
>> >debhttp://packages.gnuinos.org/ jessie main
>> >deb-srchttp://packages.gnuinos.org/ jessie main
> So does it work with devuan then?
>
> Can you go past the login screen?


The login screen? What are you referring to?

    Aitor.