xref: /openbmc/linux/Documentation/userspace-api/media/v4l/pixfmt-tch-td08.rst (revision 059b1c5b)

.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later

.. _V4L2-TCH-FMT-DELTA-TD08:

********************************
V4L2_TCH_FMT_DELTA_TD08 ('TD08')
********************************

*man V4L2_TCH_FMT_DELTA_TD08(2)*

8-bit signed Touch Delta

Description
===========

This format represents delta data from a touch controller.

Delta values may range from -128 to 127. Typically the values will vary through
a small range depending on whether the sensor is touched or not. The full value
may be seen if one of the touchscreen nodes has a fault or the line is not
connected.

**Byte Order.**
Each cell is one byte.



.. flat-table::
    :header-rows:  0
    :stub-columns: 0
    :widths:       2 1 1 1 1

    * - start + 0:
      - D'\ :sub:`00`
      - D'\ :sub:`01`
      - D'\ :sub:`02`
      - D'\ :sub:`03`
    * - start + 4:
      - D'\ :sub:`10`
      - D'\ :sub:`11`
      - D'\ :sub:`12`
      - D'\ :sub:`13`
    * - start + 8:
      - D'\ :sub:`20`
      - D'\ :sub:`21`
      - D'\ :sub:`22`
      - D'\ :sub:`23`
    * - start + 12:
      - D'\ :sub:`30`
      - D'\ :sub:`31`
      - D'\ :sub:`32`
      - D'\ :sub:`33`