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HID Usage Tables Document 1.1 - C. Scott Ananian

HID Usage Tables Document 1.1 - C. Scott Ananian

HID Usage Tables Document 1.1 - C. Scott Ananian

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Universal Serial Bus <strong>HID</strong> <strong>Usage</strong> <strong>Tables</strong> 103ReportCount(1),Output(Data, Variable, Absolute),End Collection(),<strong>Usage</strong>Page(LEDs),<strong>Usage</strong>(<strong>Usage</strong> Multi Mode Indicator),Collection(Logical),<strong>Usage</strong>Page(Telephony Devices),<strong>Usage</strong>(Message),Collection(Logical),<strong>Usage</strong>(Indicator On),<strong>Usage</strong>(Indicator Fast Blink),<strong>Usage</strong>(Indicator Off),ReportSize(2),Output(Data, Array),End Collection(),End Collection(),;Volume Control<strong>Usage</strong>Page(Consumer),<strong>Usage</strong>(Volume),Logical Minimum(-1), Logical Maximum(1),ReportSize(2), ReportCount(1),Output(Data, Variable, Relative, Preferred),;Pad to byte boundaryReportSize(3), ReportCount(1),Output(Constant),End Collection(); Volume buttons; 2-bit field for volume; 3-bit padIn the following Telephony device reports, the Key <strong>Usage</strong> Value is an input to the system returning anypressed keys. All the Indicator bits are outputs (LEDs).Figure 13: Example Telephony Device Input ReportByte 7 6 5 4 3 2 1 00 Misc.ButtonsBit 0BitTelephony Key Pad Programmable Keys1 Pad Volume Misc. ButtonsBits 2-1Version <strong>1.1</strong> April 8, 1999

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