hotplug and /etc/init.d/hotplug

hotplug and /etc/init.d/hotplug

[sting sting]

Hello,
I am running RedHat 9 with 2.4.20-8  kernel ;
Now , I have a questo about hotplug:
I have hotplug-2002_04_01-17 installed (rpm);

Now , I read the readme of this rpm ;
in their "installing"  section , clause 5 , it says:
# cp etc/rc.d/init.d/hotplug /etc/rc.d/init.d/hotplug
# cd /etc/rc.d/init.d
# chkconfig --add hotplug

I checked on my machine and there is no "hotplug" file in that folder.
Nevertheless, hotplugin works (because when I plug a USB camera
I can see in the kernel log (/var/log/messages)  messages which start with
/etc/hotplug/usb.agent

I also looked at the kernel code (method "call_polcy" in usb.c )
and it doesn't seems to me that the hotplug in /etc/init.d is needed .

can anybody make some clarifications ?
sting

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Re: hotplug and /etc/init.d/hotplug

[David Jez]

On Tue, Oct 14, 2003 at 01:53:46PM +0200, sting sting wrote:
> Hello,
  Hi,

> I am running RedHat 9 with 2.4.20-8  kernel ;
> Now , I have a questo about hotplug:
> I have hotplug-2002_04_01-17 installed (rpm);
> 
> Now , I read the readme of this rpm ;
> in their "installing"  section , clause 5 , it says:
> # cp etc/rc.d/init.d/hotplug /etc/rc.d/init.d/hotplug
> # cd /etc/rc.d/init.d
> # chkconfig --add hotplug
> 
> I checked on my machine and there is no "hotplug" file in that folder.
> Nevertheless, hotplugin works (because when I plug a USB camera
> I can see in the kernel log (/var/log/messages)  messages which start with
> /etc/hotplug/usb.agent
> 
> I also looked at the kernel code (method "call_polcy" in usb.c )
> and it doesn't seems to me that the hotplug in /etc/init.d is needed .
> 
> can anybody make some clarifications ?
  Don't worry about it :-)
  /etc/init.d/... file is script for bring up hotplug subsytem... for
usb it means: modprobe module for usb host controller adapter and mount
/proc/bus/usb ...
  Hotplugin works because usb subsystem execute /sbin/hotplug binary...

  Is that enought?
> sting
-- 
-------------------------------------------------------
  David "Dave" Jez                Brno, CZ, Europe
 E-mail: dave.jez@seznam.cz
PGP key: finger xjezda00@eva.fit.vutbr.cz
---------=[ ~EOF ]=------------------------------------

Re: hotplug and /etc/init.d/hotplug

[Greg KH]

On Tue, Oct 14, 2003 at 01:53:46PM +0200, sting sting wrote:
> Hello,
> I am running RedHat 9 with 2.4.20-8  kernel ;
> Now , I have a questo about hotplug:
> I have hotplug-2002_04_01-17 installed (rpm);
> 
> Now , I read the readme of this rpm ;
> in their "installing"  section , clause 5 , it says:
> # cp etc/rc.d/init.d/hotplug /etc/rc.d/init.d/hotplug
> # cd /etc/rc.d/init.d
> # chkconfig --add hotplug

That is because Red Hat does not ship the /etc/init.d/hotplug script.
Take it up with them if you want them to change this.

> I checked on my machine and there is no "hotplug" file in that folder.
> Nevertheless, hotplugin works (because when I plug a USB camera
> I can see in the kernel log (/var/log/messages)  messages which start with
> /etc/hotplug/usb.agent
> 
> I also looked at the kernel code (method "call_polcy" in usb.c )
> and it doesn't seems to me that the hotplug in /etc/init.d is needed .

needed for what?  For devices being plugged in and removed, no.  But to
start up the usb subsystems, or shut them down, yes.  Or you can do it
in the rc.sysinit script, which is what Red Hat does.

Hope this helps,

greg k-h

Re: hotplug and /etc/init.d/hotplug

[dacin]

See /etc/rc.d/rc.sysinit for the magic ....

Regards
Dacodecz

sting sting wrote:

> Hello,
> I am running RedHat 9 with 2.4.20-8  kernel ;
> Now , I have a questo about hotplug:
> I have hotplug-2002_04_01-17 installed (rpm);
>
> Now , I read the readme of this rpm ;
> in their "installing"  section , clause 5 , it says:
> # cp etc/rc.d/init.d/hotplug /etc/rc.d/init.d/hotplug
> # cd /etc/rc.d/init.d
> # chkconfig --add hotplug
>
> I checked on my machine and there is no "hotplug" file in that folder.
> Nevertheless, hotplugin works (because when I plug a USB camera
> I can see in the kernel log (/var/log/messages)  messages which start 
> with
> /etc/hotplug/usb.agent
>
> I also looked at the kernel code (method "call_polcy" in usb.c )
> and it doesn't seems to me that the hotplug in /etc/init.d is needed .
>
> can anybody make some clarifications ?
> sting
>
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