HID Sensor Usage Tables - USB.org

63 HID Sensor Usages
3
4
Data Field 2 = 0x5343
Table 10. Input Report with 2 separate scalar Data Fields of Report Size 16, Report Count 1
Byte
Bit Position in the byte
Position 7 6 5 4 3 2 1 0
0 Report ID = 0x12
1 Data Field = ‘H’
2 ‘e’
3 ‘l’
4 ‘l’
5 ‘o’
6 ‘\0’
Table 11. Input Report with a single array Data Field of Report Size 8, Report Count 6
(narrow character string “Hello”)
Byte
Bit Position in the byte
Position 7 6 5 4 3 2 1 0
0
1
2
3
Report ID = 0x74
4
5
6
7
8
Property = 0x00000000c4216527
Table 12. Feature Report with single scalar Property of Report Size 64, Report Count 1
Byte
Bit Position in the byte
Position 7 6 5 4 3 2 1 0
0 Report ID = 0xa3
1
2
Property 1 = 0x33
3
4
5
6
Property 2 [0] = 0xFFFFFFFF
7
8
9
Property 2 [1] = 0x87654321
Table 13. Feature Report with 2 Properties, one a scalar of Report Size 8, Report Count 1
and one an array of Report Size 32, Report Count 2
Appendices at the end of this document show examples of HID Report Descriptors for various types of
sensors. For simplicity’s sake, most of these examples are silent about the use of Report IDs. The
examples presume:
A Report ID of zero for both the Input Reports and Feature Reports;
All the Data Fields are packed as Items into a single Input Report;