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 |