xref: /OK3568_Linux_fs/kernel/Documentation/userspace-api/media/v4l/pixfmt-tch-td08.rst (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2*4882a593Smuzhiyun
3*4882a593Smuzhiyun.. _V4L2-TCH-FMT-DELTA-TD08:
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun********************************
6*4882a593SmuzhiyunV4L2_TCH_FMT_DELTA_TD08 ('TD08')
7*4882a593Smuzhiyun********************************
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun*man V4L2_TCH_FMT_DELTA_TD08(2)*
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun8-bit signed Touch Delta
12*4882a593Smuzhiyun
13*4882a593SmuzhiyunDescription
14*4882a593Smuzhiyun===========
15*4882a593Smuzhiyun
16*4882a593SmuzhiyunThis format represents delta data from a touch controller.
17*4882a593Smuzhiyun
18*4882a593SmuzhiyunDelta values may range from -128 to 127. Typically the values will vary through
19*4882a593Smuzhiyuna small range depending on whether the sensor is touched or not. The full value
20*4882a593Smuzhiyunmay be seen if one of the touchscreen nodes has a fault or the line is not
21*4882a593Smuzhiyunconnected.
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun**Byte Order.**
24*4882a593SmuzhiyunEach cell is one byte.
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun.. flat-table::
29*4882a593Smuzhiyun    :header-rows:  0
30*4882a593Smuzhiyun    :stub-columns: 0
31*4882a593Smuzhiyun    :widths:       2 1 1 1 1
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun    * - start + 0:
34*4882a593Smuzhiyun      - D'\ :sub:`00`
35*4882a593Smuzhiyun      - D'\ :sub:`01`
36*4882a593Smuzhiyun      - D'\ :sub:`02`
37*4882a593Smuzhiyun      - D'\ :sub:`03`
38*4882a593Smuzhiyun    * - start + 4:
39*4882a593Smuzhiyun      - D'\ :sub:`10`
40*4882a593Smuzhiyun      - D'\ :sub:`11`
41*4882a593Smuzhiyun      - D'\ :sub:`12`
42*4882a593Smuzhiyun      - D'\ :sub:`13`
43*4882a593Smuzhiyun    * - start + 8:
44*4882a593Smuzhiyun      - D'\ :sub:`20`
45*4882a593Smuzhiyun      - D'\ :sub:`21`
46*4882a593Smuzhiyun      - D'\ :sub:`22`
47*4882a593Smuzhiyun      - D'\ :sub:`23`
48*4882a593Smuzhiyun    * - start + 12:
49*4882a593Smuzhiyun      - D'\ :sub:`30`
50*4882a593Smuzhiyun      - D'\ :sub:`31`
51*4882a593Smuzhiyun      - D'\ :sub:`32`
52*4882a593Smuzhiyun      - D'\ :sub:`33`
53