2.11.2. 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.

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