GNU Linux-libre 4.19.264-gnu1
[releases.git] / Documentation / ABI / testing / sysfs-driver-hid-ntrig
1 What:           /sys/bus/hid/drivers/ntrig/<dev>/activate_slack
2 Date:           May, 2010
3 KernelVersion:  2.6.35
4 Contact:        linux-input@vger.kernel.org
5 Description:
6                 (RW) Number of contact frames ignored before acknowledging the
7                 start of activity (activating touch).
8
9
10 What:           /sys/bus/hid/drivers/ntrig/<dev>/decativate_slack
11 Date:           May, 2010
12 KernelVersion:  2.6.35
13 Contact:        linux-input@vger.kernel.org
14 Description:
15                 (RW) Number of empty (no contact) frames ignored before
16                 acknowledging the end of activity (deactivating touch).
17
18                 When the last finger is removed from the device, it sends a
19                 number of empty frames. By holding off on deactivation for a few
20                 frames false erroneous disconnects can be tolerated, where the
21                 sensor may mistakenly not detect a finger that is still present.
22
23
24 What:           /sys/bus/hid/drivers/ntrig/<dev>/activation_width
25 What:           /sys/bus/hid/drivers/ntrig/<dev>/activation_height
26 Date:           May, 2010
27 KernelVersion:  2.6.35
28 Contact:        linux-input@vger.kernel.org
29 Description:
30                 Threholds to override activation slack.
31
32                 activation_width:       (RW) Width threshold to immediately
33                                         start processing touch events.
34
35                 activation_height:      (RW) Height threshold to immediately
36                                         start processing touch events.
37
38
39 What:           /sys/bus/hid/drivers/ntrig/<dev>/min_width
40 What:           /sys/bus/hid/drivers/ntrig/<dev>/min_height
41 Date:           May, 2010
42 KernelVersion:  2.6.35
43 Contact:        linux-input@vger.kernel.org
44 Description:
45                 Minimum size contact accepted.
46
47                 min_width:      (RW) Minimum touch contact width to decide
48                                 activation and activity.
49
50                 min_height:     (RW) Minimum touch contact height to decide
51                                 activation and activity.
52
53
54 What:           /sys/bus/hid/drivers/ntrig/<dev>/sensor_physical_width
55 What:           /sys/bus/hid/drivers/ntrig/<dev>/sensor_physical_height
56 Date:           May, 2010
57 KernelVersion:  2.6.35
58 Contact:        linux-input@vger.kernel.org
59 Description:
60                 (RO) These are internal ranges not used for normal events but
61                 useful for tuning.
62
63
64 What:           /sys/bus/hid/drivers/ntrig/<dev>/sensor_logical_width
65 What:           /sys/bus/hid/drivers/ntrig/<dev>/sensor_logical_height
66 Date:           May, 2010
67 KernelVersion:  2.6.35
68 Contact:        linux-input@vger.kernel.org
69 Description:
70                 (RO) The range for positions reported during activity.