* Re: Regarding to CPU hotplug
2007-09-10 5:31 Regarding to CPU hotplug Omprakash Vishnoi
@ 2007-09-10 7:13 ` Greg KH
2007-09-10 8:36 ` Omprakash Vishnoi
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Greg KH @ 2007-09-10 7:13 UTC (permalink / raw)
To: linux-hotplug
On Mon, Sep 10, 2007 at 10:49:52AM +0530, Omprakash Vishnoi wrote:
>
> Hi All,
> I read the doc. Linux Symposium "Udev-A userspace implementation of
> devfs",there i understood,i have to make rulefile in "/etc/udev/rule.d/"
> for CPU hotplug,but how can i know which CPU getting add or
> removed.Acctually as in my project,we want notification for CPU's
> getting remove or add at user level.
>
> pls tell me what procedure i have to follow,And how can i know which
> CPU getting remove or add.
I think you can just listen for the dbus events coming from HAL that
show the cpus going up and down. Have you tried looking at the events
that happen when you do this to the machine?
thanks,
greg k-h
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: Regarding to CPU hotplug
2007-09-10 5:31 Regarding to CPU hotplug Omprakash Vishnoi
2007-09-10 7:13 ` Greg KH
@ 2007-09-10 8:36 ` Omprakash Vishnoi
2007-09-10 14:08 ` Greg KH
2007-09-10 22:46 ` Kay Sievers
3 siblings, 0 replies; 5+ messages in thread
From: Omprakash Vishnoi @ 2007-09-10 8:36 UTC (permalink / raw)
To: linux-hotplug
Hi Greg,
I m talking about user space,can u tell me how can i listen dbus
event,How can i see event coming from HAL i don't know,can u tell me please
in broad way.No i didn't try to those event.I know only about /udev/
directory and how to write rule in rule.d directory.
pls tell me what is the approch should i prefer.
Best Regards
Omprakash Vishnoi
Greg KH
<greg@kroah.com>
To
10/09/2007 12:43 Omprakash Vishnoi/India/IBM@IBMIN
cc
linux-hotplug-devel@lists.sourcefor
ge.net
Subject
Re: Regarding to CPU hotplug
On Mon, Sep 10, 2007 at 10:49:52AM +0530, Omprakash Vishnoi wrote:
>
> Hi All,
> I read the doc. Linux Symposium "Udev-A userspace implementation
of
> devfs",there i understood,i have to make rulefile in
"/etc/udev/rule.d/"
> for CPU hotplug,but how can i know which CPU getting add or
> removed.Acctually as in my project,we want notification for CPU's
> getting remove or add at user level.
>
> pls tell me what procedure i have to follow,And how can i know
which
> CPU getting remove or add.
I think you can just listen for the dbus events coming from HAL that
show the cpus going up and down. Have you tried looking at the events
that happen when you do this to the machine?
thanks,
greg k-h
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: Regarding to CPU hotplug
2007-09-10 5:31 Regarding to CPU hotplug Omprakash Vishnoi
2007-09-10 7:13 ` Greg KH
2007-09-10 8:36 ` Omprakash Vishnoi
@ 2007-09-10 14:08 ` Greg KH
2007-09-10 22:46 ` Kay Sievers
3 siblings, 0 replies; 5+ messages in thread
From: Greg KH @ 2007-09-10 14:08 UTC (permalink / raw)
To: linux-hotplug
A: http://en.wikipedia.org/wiki/Top_post
Q: Were do I find info about this thing called top-posting?
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
A: No.
Q: Should I include quotations after my reply?
On Mon, Sep 10, 2007 at 01:54:46PM +0530, Omprakash Vishnoi wrote:
> Hi Greg,
>
> I m talking about user space,can u tell me how can i listen dbus
> event,How can i see event coming from HAL
dbus and HAL are userspace things, go see their documentation for how to
do this properly, it is not a kernel issue.
> i don't know,can u tell me please in broad way.No i didn't try to
> those event.I know only about /udev/ directory and how to write rule
> in rule.d directory.
>
> pls tell me what is the approch should i prefer.
Do whatever works properly for you :)
good luck,
greg k-h
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Linux-hotplug-devel@lists.sourceforge.net
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Regarding to CPU hotplug
2007-09-10 5:31 Regarding to CPU hotplug Omprakash Vishnoi
` (2 preceding siblings ...)
2007-09-10 14:08 ` Greg KH
@ 2007-09-10 22:46 ` Kay Sievers
3 siblings, 0 replies; 5+ messages in thread
From: Kay Sievers @ 2007-09-10 22:46 UTC (permalink / raw)
To: linux-hotplug
On 9/10/07, Omprakash Vishnoi <ovishnoi@in.ibm.com> wrote:
> I read the doc. Linux Symposium "Udev-A userspace implementation of
> devfs",there i understood,i have to make rulefile in "/etc/udev/rule.d/"
> for CPU hotplug,but how can i know which CPU getting add or
> removed.Acctually as in my project,we want notification for CPU's
> getting remove or add at user level.
>
> pls tell me what procedure i have to follow,And how can i know which
> CPU getting remove or add.
Run:
udevmonitor --env
while adding/removing a CPU. What does it print?
Kay
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Defy all challenges. Microsoft(R) Visual Studio 2005.
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Linux-hotplug-devel@lists.sourceforge.net
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^ permalink raw reply [flat|nested] 5+ messages in thread