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<H1>[Mageia-dev] dropping /proc/bus/sub (Re: [changelog] [RPM] cauldron core/release systemd-189-2.mga3)</H1>
<B>Thierry Vignaud</B>
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TITLE="[Mageia-dev] dropping /proc/bus/sub (Re: [changelog] [RPM] cauldron core/release systemd-189-2.mga3)">thierry.vignaud at gmail.com
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<I>Thu Aug 30 11:39:16 CEST 2012</I>
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<PRE>On 29 August 2012 16:16, Thierry Vignaud <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">thierry.vignaud at gmail.com</A>> wrote:
>>>>><i> Yeah because we're now on kernel 3.5 we can no longer do certain things
</I>>>>>><i> relating to this mount point.
</I>>>>>><i>
</I>>>>>><i> IIRC some ldetect stuff used it and some of the 3G and/or
</I>>>>>><i> printer/scanner stuff might also depend on it and need to be migrated
</I>>>>>><i> too. I don't know that code very well, but I know some folks complained
</I>>>>>><i> when we stopped mounting it by default, so I've no doubt that it's use
</I>>>>>><i> is lurking somewhere!
</I>>>>>><i>
</I>>>>>><i> I would guess that in some cases /dev/bus/usb/ might be sufficient for
</I>>>>>><i> what is needed.
</I>>>>><i>
</I>>>>><i> Humm...
</I>>>>><i> I've still around a patch making ldetect using libusb.
</I>>>>><i> Sadly, we're missing some data...
</I>>>>><i> Basically we would miss the kernel driver name binded with each usb device.
</I>>>>><i>
</I>>>>><i> We cannot workaround it since libusb misses with the ability to either
</I>>>>><i> query the sysfs device path or to got the Port number
</I>>>>><i> ("Port" in /proc/bus/usb/devices).
</I>>>>><i> (I miss the Port number in order to compute the
</I>>>>><i> /sys/bus/devices/usb/foobar path)
</I>>>>><i>
</I>>>>><i> W/o that I cannot retrieve the modalias which would help me to get the kernel
</I>>>>><i> driver name.
</I>>>>><i>
</I>>>>><i> I guess I'll have to resurect that work and try harder to find some
</I>>>>><i> workaround...
</I>>>><i>
</I>>>><i> Why not using sysfs for everything directly?
</I>
(...)
><i> See also <A HREF="http://sourceforge.net/apps/trac/libusbx/ticket/24">http://sourceforge.net/apps/trac/libusbx/ticket/24</A>
</I>
I've put a simple fix at <A HREF="https://bugs.mageia.org/show_bug.cgi?id=7248">https://bugs.mageia.org/show_bug.cgi?id=7248</A>
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