1 What: /sys/class/devfreq/.../
2 Date: September 2011
3 Contact: MyungJoo Ham <myungjoo.ham@sams
4 Description:
5 Provide a place in sysfs for t
6 This allows accessing various
7 The name of devfreq object den
8 name of device using devfreq.
9
10 What: /sys/class/devfreq/.../name
11 Date: November 2019
12 Contact: Chanwoo Choi <cw00.choi@samsung
13 Description:
14 The /sys/class/devfreq/.../nam
15 of the corresponding devfreq o
16
17 What: /sys/class/devfreq/.../governo
18 Date: September 2011
19 Contact: MyungJoo Ham <myungjoo.ham@sams
20 Description:
21 The /sys/class/devfreq/.../gov
22 governor used by the correspon
23
24 What: /sys/class/devfreq/.../cur_fre
25 Date: September 2011
26 Contact: MyungJoo Ham <myungjoo.ham@sams
27 Description:
28 The /sys/class/devfreq/.../cur
29 frequency of the corresponding
30 target_freq when get_cur_freq(
31 devfreq driver.
32
33 What: /sys/class/devfreq/.../target_
34 Date: September 2012
35 Contact: Rajagopal Venkat <rajagopal.ven
36 Description:
37 The /sys/class/devfreq/.../tar
38 predicted target frequency of
39
40 What: /sys/class/devfreq/.../trans_s
41 Date: October 2012
42 Contact: MyungJoo Ham <myungjoo.ham@sams
43 Description:
44 This ABI shows or clears the s
45 on a specific device. It shows
46 and the number of transitions
47 In order to activate this ABI,
48 driver should provide the list
49 with its profile. If need to r
50 behavior on a specific device,
51 as following::
52
53 echo 0 > /sys/class/de
54
55 If the transition table is big
56 this will return an -EFBIG err
57
58 What: /sys/class/devfreq/.../availab
59 Date: October 2012
60 Contact: Nishanth Menon <nm@ti.com>
61 Description:
62 The /sys/class/devfreq/.../ava
63 the available frequencies of t
64 This is a snapshot of availabl
65 by the min/max frequency restr
66
67 What: /sys/class/devfreq/.../availab
68 Date: October 2012
69 Contact: Nishanth Menon <nm@ti.com>
70 Description:
71 The /sys/class/devfreq/.../ava
72 currently available governors
73
74 What: /sys/class/devfreq/.../min_fre
75 Date: January 2013
76 Contact: MyungJoo Ham <myungjoo.ham@sams
77 Description:
78 The /sys/class/devfreq/.../min
79 the minimum frequency requeste
80 the user does not care. min_fr
81 frequency requested by governo
82
83 What: /sys/class/devfreq/.../max_fre
84 Date: January 2013
85 Contact: MyungJoo Ham <myungjoo.ham@sams
86 Description:
87 The /sys/class/devfreq/.../max
88 the maximum frequency requeste
89 the user does not care. max_fr
90 frequency requested by governo
91 The max_freq overrides min_fre
92 used to throttle devices to av
93
94 What: /sys/class/devfreq/.../polling
95 Date: September 2011
96 Contact: MyungJoo Ham <myungjoo.ham@sams
97 Description:
98 The /sys/class/devfreq/.../pol
99 the requested polling interval
100 object. The values are represe
101 less than 1 jiffy, it is consi
102 no polling. This value is mean
103 not polling.
104
105 A list of governors that suppo
106 - simple_ondmenad
107 - tegra_actmon
108
109 What: /sys/class/devfreq/.../userspa
110 Date: September 2011
111 Contact: MyungJoo Ham <myungjoo.ham@sams
112 Description:
113 The /sys/class/devfreq/.../use
114 sets the requested frequency f
115 userspace governor is in effec
116
117 A list of governors that suppo
118 - userspace
119
120 What: /sys/class/devfreq/.../timer
121 Date: July 2020
122 Contact: Chanwoo Choi <cw00.choi@samsung
123 Description:
124 This ABI shows and stores the
125 This work timer is used by dev
126 monitor the device status such
127 can change the work timer on r
128 as following::
129
130 echo deferrable > /sys
131 echo delayed > /sys/cl
132
133 A list of governors that suppo
134 - simple_ondemand
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.