Keyboard

4.3.9.1.2Multimedia Keys (Hot keys) Report

An Application Report Header of 0xFF indicates that this report is a Multimedia Keys report. The Multimedia Keys report format is shown in Table 4-10.

Table 4-10. Multimedia Keys Report Format

Byte

Name

2

Application Report Header

0xFF

 

3

Hot Key Scan Code

(upper 8 bits)

 

4

Hot Key Scan Code

(lower 8 bits)

 

Example

The following reports is sent if a user presses the ‘Volume Increase’ (Hot Key 8) key on the key- board.

The ‘Volume Increase’ down key packet sent from the keyboard to the bridge is shown in Table 4-11.

Table 4-11. Example ‘Volume Increase’ Down Key Multimedia Keys Report

Application Report

Application Report

Hot Key Scan Code

Hot Key Scan Code

Header

(upper 8 bits)

(lower 8 bits)

0xFF

0x00

0xE9

The up key packet sent from the keyboard to the bridge is shown in Table 4-12.

Table 4-12. Example Up Key Multimedia Keys Report

Application Report

Application Report Header

0xFF

4.3.9.1.3Power Keys (Suspend/Sleep) Report

An Application Report Header of 0xFE indicates that this report is a Power Keys report. The Power Keys report format is shown in Table 4-13.

Table 4-13. Power Keys Report Format

Byte

Name

2

Application Report Header

(0xFE)

 

3

Power Key Scan Code

68

CY4672 Reference Design Guide, Document # 001-16968 Revision **

[+] Feedback

Page 68
Image 68
Cypress CY4672 manual Application Report