What:		/sys/bus/acpi/devices/.../path
Date:		December 2006
Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
		This attribute indicates the full path of ACPI namespace
		object associated with the device object.  For example,
		\_SB_.PCI0.
		This file is not present for device objects representing
		fixed ACPI hardware features (like power and sleep
		buttons).

What:		/sys/bus/acpi/devices/.../modalias
Date:		July 2007
Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
		This attribute indicates the PNP IDs of the device object.
		That is acpi:HHHHHHHH:[CCCCCCC:].  Where each HHHHHHHH or
		CCCCCCCC contains device object's PNPID (_HID or _CID).

What:		/sys/bus/acpi/devices/.../hid
Date:		April 2005
Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
		This attribute indicates the hardware ID (_HID) of the
		device object.  For example, PNP0103.
		This file is present for device objects having the _HID
		control method.

What:		/sys/bus/acpi/devices/.../description
Date:		October 2012
Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
		This attribute contains the output of the device object's
		_STR control method, if present.

What:		/sys/bus/acpi/devices/.../adr
Date:		October 2012
Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
		This attribute contains the output of the device object's
		_ADR control method, which is present for ACPI device
		objects representing devices having standard enumeration
		algorithms, such as PCI.

What:		/sys/bus/acpi/devices/.../uid
Date:		October 2012
Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
		This attribute contains the output of the device object's
		_UID control method, if present.

What:		/sys/bus/acpi/devices/.../eject
Date:		December 2006
Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
Description:
		Writing 1 to this attribute will trigger hot removal of
		this device object.  This file exists for every device
		object that has _EJ0 method.