1 What: /sys/bus/acpi/devices/.../path 1 What: /sys/bus/acpi/devices/.../path
2 Date: December 2006 2 Date: December 2006
3 Contact: Rafael J. Wysocki <rjw@rjwysock 3 Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
4 Description: 4 Description:
5 This attribute indicates the f 5 This attribute indicates the full path of ACPI namespace
6 object associated with the dev 6 object associated with the device object. For example,
7 \_SB_.PCI0. 7 \_SB_.PCI0.
8 <<
9 This file is not present for d 8 This file is not present for device objects representing
10 fixed ACPI hardware features ( 9 fixed ACPI hardware features (like power and sleep
11 buttons). 10 buttons).
12 11
13 What: /sys/bus/acpi/devices/.../moda 12 What: /sys/bus/acpi/devices/.../modalias
14 Date: July 2007 13 Date: July 2007
15 Contact: Rafael J. Wysocki <rjw@rjwysock 14 Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
16 Description: 15 Description:
17 This attribute indicates the P 16 This attribute indicates the PNP IDs of the device object.
18 That is acpi:HHHHHHHH:[CCCCCCC 17 That is acpi:HHHHHHHH:[CCCCCCC:]. Where each HHHHHHHH or
19 CCCCCCCC contains device objec 18 CCCCCCCC contains device object's PNPID (_HID or _CID).
20 19
21 What: /sys/bus/acpi/devices/.../hid 20 What: /sys/bus/acpi/devices/.../hid
22 Date: April 2005 21 Date: April 2005
23 Contact: Rafael J. Wysocki <rjw@rjwysock 22 Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
24 Description: 23 Description:
25 This attribute indicates the h 24 This attribute indicates the hardware ID (_HID) of the
26 device object. For example, P 25 device object. For example, PNP0103.
27 This file is present for devic 26 This file is present for device objects having the _HID
28 control method. 27 control method.
29 28
30 What: /sys/bus/acpi/devices/.../desc 29 What: /sys/bus/acpi/devices/.../description
31 Date: October 2012 30 Date: October 2012
32 Contact: Rafael J. Wysocki <rjw@rjwysock 31 Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
33 Description: 32 Description:
34 This attribute contains the ou 33 This attribute contains the output of the device object's
35 _STR control method, if presen 34 _STR control method, if present.
36 35
37 What: /sys/bus/acpi/devices/.../adr 36 What: /sys/bus/acpi/devices/.../adr
38 Date: October 2012 37 Date: October 2012
39 Contact: Rafael J. Wysocki <rjw@rjwysock 38 Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
40 Description: 39 Description:
41 This attribute contains the ou 40 This attribute contains the output of the device object's
42 _ADR control method, which is 41 _ADR control method, which is present for ACPI device
43 objects representing devices h 42 objects representing devices having standard enumeration
44 algorithms, such as PCI. 43 algorithms, such as PCI.
45 44
46 What: /sys/bus/acpi/devices/.../uid 45 What: /sys/bus/acpi/devices/.../uid
47 Date: October 2012 46 Date: October 2012
48 Contact: Rafael J. Wysocki <rjw@rjwysock 47 Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
49 Description: 48 Description:
50 This attribute contains the ou 49 This attribute contains the output of the device object's
51 _UID control method, if presen 50 _UID control method, if present.
52 51
53 What: /sys/bus/acpi/devices/.../ejec 52 What: /sys/bus/acpi/devices/.../eject
54 Date: December 2006 53 Date: December 2006
55 Contact: Rafael J. Wysocki <rjw@rjwysock 54 Contact: Rafael J. Wysocki <rjw@rjwysocki.net>
56 Description: 55 Description:
57 Writing 1 to this attribute wi 56 Writing 1 to this attribute will trigger hot removal of
58 this device object. This file 57 this device object. This file exists for every device
59 object that has _EJ0 method. 58 object that has _EJ0 method.
60 <<
61 What: /sys/bus/acpi/devices/.../stat <<
62 Date: Jan, 2014 <<
63 Contact: Rafael J. Wysocki <rjw@rjwysock <<
64 Description: <<
65 (RO) Returns the ACPI device s <<
66 functioning or present, if the <<
67 <<
68 The return value is a decimal <<
69 status bitmap: <<
70 <<
71 =========== ================= <<
72 Bit [0] Set if the device <<
73 Bit [1] Set if the device <<
74 resources. <<
75 Bit [2] Set if the device <<
76 Bit [3] Set if the device <<
77 if device failed <<
78 Bit [4] Set if the batter <<
79 Bits [31:5] Reserved (must be <<
80 =========== ================= <<
81 <<
82 If bit [0] is clear, then bit <<
83 that is not present cannot be <<
84 <<
85 Bit 0 can be clear (not presen <<
86 functional). This case is use <<
87 which no device driver should <<
88 <<
89 More special cases are covered <<
90 <<
91 What: /sys/bus/acpi/devices/.../hrv <<
92 Date: Apr, 2016 <<
93 Contact: Rafael J. Wysocki <rjw@rjwysock <<
94 Description: <<
95 (RO) Allows users to read the <<
96 hardware, if the _HRV control <<
97 useful for non-PCI devices bec <<
98 version for PCI devices. <<
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