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