I am definitely trying to unbind the PCI sound
card. The "example" I included was one that I pulled off the web. I
just re-read my initial note, and realized i just edited the web example.
My exact command is this:
echo
-n .&checktime(0000,00,0,':')b.0 > /sys/bus/pci/drivers/ENS1371/unbind
... and this command just hangs.
As I mentioned in my original post, I can find a
way to use the sound card by editing /etc/modprobe.conf.local
with:
options pciback
hide=(.&checktime(0000,00,0,':')b.0)
However, my goal is to get the documented example
to work. If a new user of Xen tries to follow the documentation or the web
examples, they will be given the steps listed in my original post, which
are:
# # Unbind a PCI network card from its
network driver
# echo -n <pci-slot-nbr> >
/sys/bus/pci/drivers/<device>/unbind
# # And now bind it to the PCI Backend
# echo -n <pci-slot-nbr> >
/sys/bus/pci/drivers/pciback/new_slot
# echo -n <pci-slot-nbr> >
/sys/bus/pci/drivers/pciback/bind
I haven't found any indication in any of the web
examples, or in the documentation, following this sequence of commands, which
indicates what to do if the unbind hangs. So, I'm trying to figure out why
it is hanging, and if there is a workaround that can be included in the training
materials.
Peg
----- Original Message -----
Sent: Thursday, September 27, 2007 8:55
AM
Subject: Re: [Xen-devel] Can't unbind PCI sound
card
> On Thu, 2007年09月27日 at 08:10 -0400, Tech Writer
wrote:
>> echo -n .&checktime(0000,00,0,':')b.0 >
/sys/bus/pci/drivers/e100/unbind
>
> e100 is a network driver not a
sound driver, are you sure you aren't
> disconnecting the Ethernet
interface you are logged in over or
> something? You probably want
/sys/bus/pci/drivers/snd_ens1371/unbind, I
> would actually follow the
symlink
> at /sys/bus/pci/devices/0000:00:0b.0/driver instead of
going
> vi /sys/bus/pci/drivers to be sure of getting the right
device.
>
> Below is the script I use to attach a device to
pciback, it takes a list
> of pci devices as its parameter.
>
> Ian.
>
>
> #!/bin/sh
>
> if [ $# -eq 0
] ; then
> echo "Require a PCI device as
parameter"
> exit 1
> fi
>
> for pcidev in
$@ ; do
> if [ -h /sys/bus/pci/devices/"$pcidev"/driver
] ; then
>
> echo
"Unbinding $pcidev from" $(basename $(readlink
/sys/bus/pci/devices/"$pcidev"/driver))
>
echo -n "$pcidev" >
/sys/bus/pci/devices/"$pcidev"/driver/unbind
>
fi
> echo "Binding $pcidev to
pciback"
> echo -n "$pcidev" >
/sys/bus/pci/drivers/pciback/new_slot
> echo -n
"$pcidev" > /sys/bus/pci/drivers/pciback/bind
> done
>
>
>
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