[Mageia-dev] dropping /proc/bus/sub (Re: [changelog] [RPM] cauldron core/release systemd-189-2.mga3)

Wed Aug 29 16:06:50 CEST 2012

On 29 August 2012 15:46, Colin Guthrie <mageia at colin.guthr.ie> wrote:
+>> Is there any migration to do in drakx and ldetect because of this?
+>
+> Oh yeah I meant to send a message to the list about this.
+>
+> Yeah because we're now on kernel 3.5 we can no longer do certain things
+> relating to this mount point.
+>
+> IIRC some ldetect stuff used it and some of the 3G and/or
+> printer/scanner stuff might also depend on it and need to be migrated
+> too. I don't know that code very well, but I know some folks complained
+> when we stopped mounting it by default, so I've no doubt that it's use
+> is lurking somewhere!
+>
+> I would guess that in some cases /dev/bus/usb/ might be sufficient for
+> what is needed.
+
+Humm...
+I've still around a patch making ldetect using libusb.
+Sadly, we're missing some data...
+Basically we would miss the kernel driver name binded with each usb device.
+
+We cannot workaround it since libusb misses with the ability to either
+query the sysfs device path or to got the Port number
+("Port" in /proc/bus/usb/devices).
+(I miss the Port number in order to compute the
+/sys/bus/devices/usb/foobar path)
+
+W/o that I cannot retrieve the modalias which would help me to get the kernel
+driver name.
+
+I guess I'll have to resurect that work and try harder to find some
+workaround...
+
+See you
+