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Updated PCI-back-to-dom0 instructions
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Axon 2014-05-30 05:13:23 +00:00
parent 9d454f061b
commit 60e116086c
1 changed files with 5 additions and 4 deletions
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UserFaq.md
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@ -152,12 +152,13 @@ This is an intended feature. A device which was previously assigned to a less tr
or
1. Go to the sysfs (`/sys/bus/pci`), find the right device, detach it from the pciback driver and attach back to the `ehci-pci`/`ehci-hcd` (`ehci-pci` on newer kernels). Assume that `00:1c.2` is your device:
1. Go to the sysfs (`/sys/bus/pci`), find the right device, detach it from the pciback driver and attach back to the original driver. Replace `<BDF>` with your device, for example `00:1c.2`:
``` {.wiki}
cd /sys/bus/pci/devices/0000:00:1c.2
echo 0000:00:1c.2 > driver/unbind
echo 0000:00:1c.2 > ../../drivers/ehci-pci/bind
echo 0000:<BDF> > /sys/bus/pci/drivers/pciback/unbind
MODALIAS=`cat /sys/bus/pci/devices/0000:<BDF>/modalias`
MOD=`modprobe -R $MODALIAS | head -n 1`
echo <BDF> > /sys/bus/pci/drivers/$MOD/bind
```