OpenCloudOS-Kernel/Documentation/ABI/stable/sysfs-devices

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Note:
This documents additional properties of any device beyond what
is documented in Documentation/admin-guide/sysfs-rules.rst
What: /sys/devices/*/of_node
Date: February 2015
Contact: Device Tree mailing list <devicetree@vger.kernel.org>
Description:
Any device associated with a device-tree node will have
an of_path symlink pointing to the corresponding device
node in /sys/firmware/devicetree/
What: /sys/devices/*/devspec
Date: October 2016
Contact: Device Tree mailing list <devicetree@vger.kernel.org>
Description:
If CONFIG_OF is enabled, then this file is present. When
read, it returns full name of the device node.
What: /sys/devices/*/obppath
Date: October 2016
Contact: Device Tree mailing list <devicetree@vger.kernel.org>
Description:
If CONFIG_OF is enabled, then this file is present. When
read, it returns full name of the device node.
What: /sys/devices/*/dev
Date: Jun 2006
Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Description:
Major and minor numbers of the character device corresponding
to the device (in <major>:<minor> format).