Messages in this thread | | | From | Rolf Eike Beer <> | Subject | Re: Is there a user space pci rescan method? | Date | Thu, 23 Sep 2004 18:49:11 +0200 |
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Jan Dittmer wrote: > Greg KH wrote: > > On Thu, Sep 23, 2004 at 01:58:32AM +0200, Jan Dittmer wrote: > >>Dave Aubin wrote: > >>>Hi, > >>> > >>> I know very little about hotplug, but does make sense. > >>>How do you motivate a hotplug insertion event? Or should > >>>I just go read the /docs on hotplugging? Any help is > >>>Appreciated:) > >> > >>There is a "fake" hotplug driver which works for normal pci. But last > >>time I looked at it, it did only support hot disabling, not hot enabling > >>- but this surely can be fixed. > > > > Yes, hot "enabling" has been left for someone to add to the driver, if > > you read the comments in it :)
Hot enabling works for month in dummyphp...
> I read them and started playing around with this driver. So echoing 0 in > /sys/bus/pci/slots/*/power disables the pci device. The problem I see > is, that the tree with the device is disappearing. So how am I supposed > to re-enable the device. I've no real hotplug hardware to play with, so > I'm bound to reading the source code in drivers/pci/hotplug and testing > with fakephp. I found your utility pcihpview (v0.5) which searches for > /sys/bus/pci/hotplug_slots. But grepping the kernel tree doesn't show > any mentioning of it - so I suppose it is outdated. > Is there anywhere a current article (or Documentation/pci_hotplug.txt) > about the state of PCI hotplug and how this is supposed to work?
Just search the archive of pcihpd-discuss@lists.sourceforge.net for dummyphp, this is the version that works. I'll rediff it soon and hope Greg will accept it this time.
Message-Id to search for: <200403120947.13046@bilbo.math.uni-mannheim.de>
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