Re: pci hotplug, how to unload module ?

[Olaf Conradi <oohlaf@gmail.com>]

Hi

On Sat, 08 Jan 2005 00:38:53 +0100, Alexandre
<a.hocquel_NOSPAM_@oreka.com> wrote:
> Hello,
> 
> Hotplug can load module when I plug it but unlike usb hotplug, pci
> hotplug can't launch some script ! juste modprobe module !
>
> So I add post-install script to modules.conf (throught
> /etc/modutils/network) and now when I plug at first the card it's ok !
>
> Now imagine I unplug it, and plug it again... There is a little problem,
> 'cause when I unplugged it, it didn't unload (modprobe -r) module, so it
> doesn't load it again (and so, not launch my post-install script) :(
> 
> so is someone knows how to unload module when card is unplug ? or knows
> how hotplug can manage this ?

I modified hotplug to have remover script support for pci devices,
just like the usb subsystem has. I wanted it for my own wifi card.

See my wishlist bug report and patch at
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=271843

It wil run the remover script when the device is unplugged.

To get it to work you have to patch /etc/hotplug/pci.agent,
make your own usermap file and
make a removal script, just follow the template below.

The remover script must have the name of the module and
the usermap file has a .usermap extension.

 -Olaf

----------start-----/etc/hotplug/pci/ndiswrapper-----
#!/bin/bash

setup_remover() {
  [ "$REMOVER" ] || return 0
  {
  echo "#!/bin/sh"
  echo "# PCI_CLASS = $PCI_CLASS"
  echo "# PCI_ID = $PCI_ID"
  echo "# PCI_SUBSYS_IS = $PCI_SUBSYS_ID"
  echo "# PCI_SLOT_NAME = $PCI_SLOT_NAME"
  echo "modprobe -r ndiswrapper"
  } >> $REMOVER
  chmod +x $REMOVER
  return 0
}

case "$ACTION" in
    add)
        setup_remover
    ;;
esac

exit 0
----------end----------