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| author | Alex Chiang <achiang@hp.com> | 2009-03-20 14:56:31 -0600 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-03-20 14:57:58 -0700 |
| commit | 705b1aaa823e800490f157cd9366ad8cff385f5f (patch) | |
| tree | 634ea8ba227a305074938f49c110fea8e68e8bb3 /Documentation/ABI | |
| parent | 3ed4fd96b3188406ac5357d9290bcffa08c65cf6 (diff) | |
| download | lwn-705b1aaa823e800490f157cd9366ad8cff385f5f.tar.gz lwn-705b1aaa823e800490f157cd9366ad8cff385f5f.zip | |
PCI: Introduce /sys/bus/pci/rescan
This interface allows the user to force a rescan of all PCI buses
in system, and rediscover devices that have been removed earlier.
pci_bus_attrs implementation from Trent Piepho.
Thanks to Vegard Nossum for discovering locking issues with the
sysfs interface.
Cc: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-pci | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index d175a2a5fac2..e6ad047cb3c2 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -57,6 +57,15 @@ Description: match the driver to the device. For example: # echo "8086 10f5" > /sys/bus/pci/drivers/foo/remove_id +What: /sys/bus/pci/rescan +Date: January 2009 +Contact: Linux PCI developers <linux-pci@vger.kernel.org> +Description: + Writing a non-zero value to this attribute will + force a rescan of all PCI buses in the system, and + re-discover previously removed devices. + Depends on CONFIG_HOTPLUG. + What: /sys/bus/pci/devices/.../vpd Date: February 2008 Contact: Ben Hutchings <bhutchings@solarflare.com> |