1 What: /sys/bus/iio/devices/triggerX/
2 KernelVersion: 4.11
3 Contact: benjamin.gaignard@st.com
4 Description:
5 Reading returns the list possi
6
7
8 - "reset"
9 The UG bit fro
10 used as trigge
11 - "enable"
12 The Counter En
13 as trigger out
14 - "update"
15 The update eve
16 For instance a
17 as a prescaler
18 - "compare_pulse"
19 The trigger ou
20 when the CC1IF
21 - "OC1REF"
22 OC1REF signal
23 - "OC2REF"
24 OC2REF signal
25 - "OC3REF"
26 OC3REF signal
27 - "OC4REF"
28 OC4REF signal
29
30 Additional modes (on TRGO2 onl
31
32 - "OC5REF"
33 OC5REF signal
34 - "OC6REF"
35 OC6REF signal
36 - "compare_pulse_OC4REF":
37 OC4REF rising
38 - "compare_pulse_OC6REF":
39 OC6REF rising
40 - "compare_pulse_OC4REF_r_or_O
41 OC4REF or OC6R
42 - "compare_pulse_OC4REF_r_or_O
43 OC4REF rising
44 pulses.
45 - "compare_pulse_OC5REF_r_or_O
46 OC5REF or OC6R
47 - "compare_pulse_OC5REF_r_or_O
48 OC5REF rising
49 pulses.
50
51 ::
52
53 +-----------+ +-----------
54 | Prescaler +-> | Counter
55 +-----------+ +--+--------
56 |
57 +--v--------
58 | Chx compar
59 +-----------
60 .
61 .
62 +-----------
63 | Ch6 compar
64 +-----------
65
66 Example with: "compare_pulse_O
67
68 X
69 X X
70 X . . X
71 X . . X
72 X . . X
73 count X . . . . X
74 . . . .
75 . . . .
76 +---------------+
77 OC4REF | . . |
78 +-+ . . +-+
79 . +---+ .
80 OC6REF . | | .
81 +-------+ +-------+
82 +-+ +-+
83 TRGO2 | | | |
84 +-+ +---+ +---------+
85
86 What: /sys/bus/iio/devices/triggerX/
87 KernelVersion: 4.11
88 Contact: benjamin.gaignard@st.com
89 Description:
90 Reading returns the current ma
91 Writing set the master mode
92
93 What: /sys/bus/iio/devices/iio:devic
94 KernelVersion: 4.12
95 Contact: benjamin.gaignard@st.com
96 Description:
97 Reading returns the current pr
98 Writing sets the preset value.
99 When counting up the counter s
100 event when reach preset value.
101 When counting down the counter
102 and fire event when reach 0.
103
104 What: /sys/bus/iio/devices/iio:devic
105 KernelVersion: 4.12
106 Contact: benjamin.gaignard@st.com
107 Description:
108 Reading returns the list possi
109
110 What: /sys/bus/iio/devices/iio:devic
111 KernelVersion: 4.12
112 Contact: benjamin.gaignard@st.com
113 Description:
114 Configure the device counter e
115 counting direction is set by i
116 attribute and the counter is c
117
118 always:
119 Counter is always ON.
120
121 gated:
122 Counting is enabled wh
123 level is high else cou
124
125 triggered:
126 Counting is enabled on
127 trigger, and remains e
128 selected mode.
129
130 What: /sys/bus/iio/devices/iio:devic
131 KernelVersion: 4.13
132 Contact: benjamin.gaignard@st.com
133 Description:
134 Reading returns the list possi
135
136 What: /sys/bus/iio/devices/iio:devic
137 KernelVersion: 4.13
138 Contact: benjamin.gaignard@st.com
139 Description:
140 Configure the device counter t
141 counting direction is set by i
142 attribute and the counter is c
143 rising edges.
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