Re: [Xen-devel] Xen bus drivers and the probe function

["Ryan Riley" <rileyrd@xxxxxxxxx>]

As Keir said, the probe() function gets triggered by the right things
appearing in the XenStore.  The XenIntro wiki has an example of this
in section 23 (Adding a new device and triggering...):
http://wiki.xensource.com/xenwiki/XenIntro

Hopefully that will be helpful for you.

Thanks
Ryan

On 10/2/07, Michael Abd-El-Malek <mabdelmalek@xxxxxxx> wrote:
> Hello,
>
> I'm writing a split driver for XenBus.  My understanding is that this is
> the "Xen way" for inter-domain discovery, bootstrapping the process by
> sharing grants and event channels.
>
> When I look at the block driver, the probe method of the front- and
> back-ends seems to be doing the bulk of the initialization work.  In my
> sample driver, however, my probe function isn't called.  My module gets
> inserted and the initialization function correctly installs the XenBus
> driver.
>
> Can someone please explain when the probe function is supposed to be
> called?  If there's no physical device "backing" the virtual device
> (i.e., virtual block driver is a counterexample), should I be relying on
> the probe method in the first place?
>
> Thanks,
> Mike
>
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