2.12.2. V4L2_TCH_FMT_DELTA_TD08 (‘TD08’)

man V4L2_TCH_FMT_DELTA_TD08(2)

8-bit signed Touch Delta

2.12.2.1. 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.

start + 0:

D’00

D’01

D’02

D’03

start + 4:

D’10

D’11

D’12

D’13

start + 8:

D’20

D’21

D’22

D’23

start + 12:

D’30

D’31

D’32

D’33