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Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/ABI/testing/sysfs-bus-pci | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 25be3250f7d6..428676cfa61e 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci | |||
@@ -133,6 +133,46 @@ Description: | |||
133 | The symbolic link points to the PCI device sysfs entry of the | 133 | The symbolic link points to the PCI device sysfs entry of the |
134 | Physical Function this device associates with. | 134 | Physical Function this device associates with. |
135 | 135 | ||
136 | |||
137 | What: /sys/bus/pci/slots/... | ||
138 | Date: April 2005 (possibly older) | ||
139 | KernelVersion: 2.6.12 (possibly older) | ||
140 | Contact: linux-pci@vger.kernel.org | ||
141 | Description: | ||
142 | When the appropriate driver is loaded, it will create a | ||
143 | directory per claimed physical PCI slot in | ||
144 | /sys/bus/pci/slots/. The names of these directories are | ||
145 | specific to the driver, which in turn, are specific to the | ||
146 | platform, but in general, should match the label on the | ||
147 | machine's physical chassis. | ||
148 | |||
149 | The drivers that can create slot directories include the | ||
150 | PCI hotplug drivers, and as of 2.6.27, the pci_slot driver. | ||
151 | |||
152 | The slot directories contain, at a minimum, a file named | ||
153 | 'address' which contains the PCI bus:device:function tuple. | ||
154 | Other files may appear as well, but are specific to the | ||
155 | driver. | ||
156 | |||
157 | What: /sys/bus/pci/slots/.../function[0-7] | ||
158 | Date: March 2010 | ||
159 | KernelVersion: 2.6.35 | ||
160 | Contact: linux-pci@vger.kernel.org | ||
161 | Description: | ||
162 | If PCI slot directories (as described above) are created, | ||
163 | and the physical slot is actually populated with a device, | ||
164 | symbolic links in the slot directory pointing to the | ||
165 | device's PCI functions are created as well. | ||
166 | |||
167 | What: /sys/bus/pci/devices/.../slot | ||
168 | Date: March 2010 | ||
169 | KernelVersion: 2.6.35 | ||
170 | Contact: linux-pci@vger.kernel.org | ||
171 | Description: | ||
172 | If PCI slot directories (as described above) are created, | ||
173 | a symbolic link pointing to the slot directory will be | ||
174 | created as well. | ||
175 | |||
136 | What: /sys/bus/pci/slots/.../module | 176 | What: /sys/bus/pci/slots/.../module |
137 | Date: June 2009 | 177 | Date: June 2009 |
138 | Contact: linux-pci@vger.kernel.org | 178 | Contact: linux-pci@vger.kernel.org |