2.12.1. V4L2_TCH_FMT_DELTA_TD16 (‘TD16’)

man V4L2_TCH_FMT_DELTA_TD16(2)

16-bit signed little endian Touch Delta

2.12.1.1. Description

This format represents delta data from a touch controller.

Delta values may range from -32768 to 32767. 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’00low	D’00high	D’01low	D’01high	D’02low	D’02high	D’03low	D’03high
start + 8:	D’10low	D’10high	D’11low	D’11high	D’12low	D’12high	D’13low	D’13high
start + 16:	D’20low	D’20high	D’21low	D’21high	D’22low	D’22high	D’23low	D’23high
start + 24:	D’30low	D’30high	D’31low	D’31high	D’32low	D’32high	D’33low	D’33high