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118 <strong>HID</strong> <strong>Sensor</strong> <strong>Usage</strong>s<br />
};<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_DATA_UPDATED,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_POLL_RESPONSE,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_CHANGE_SENSITIVITY,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_MAX_REACHED,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_MIN_REACHED,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_HIGH_THRESHOLD_CROSS_UPWARD,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_HIGH_THRESHOLD_CROSS_DOWNWARD,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_LOW_THRESHOLD_CROSS_UPWARD,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_LOW_THRESHOLD_CROSS_DOWNWARD,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_ZERO_THRESHOLD_CROSS_UPWARD,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_ZERO_THRESHOLD_CROSS_DOWNWARD,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_PERIOD_EXCEEDED,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_FREQUENCY_EXCEEDED,<br />
<strong>HID</strong>_USAGE_SENSOR_EVENT_COMPLEX_TRIGGER,<br />
<strong>HID</strong>_INPUT(Const_Arr_Abs),<br />
<strong>HID</strong>_END_COLLECTION,<br />
<strong>HID</strong>_USAGE_SENSOR_DATA_ENVIRONMENTAL_RELATIVE_HUMIDITY,<br />
<strong>HID</strong>_LOGICAL_MIN_8(0),<br />
<strong>HID</strong>_LOGICAL_MAX_16(0x10,0x27), // 10000 = 0.00 to 100.00 percent with 2 digits past decimal point<br />
<strong>HID</strong>_REPORT_SIZE(16),<br />
<strong>HID</strong>_REPORT_COUNT(1),<br />
// <strong>HID</strong>_USAGE_SENSOR_UNITS_PERCENT,<br />
<strong>HID</strong>_UNIT_EXPONENT(0x0E), // scale default unit “percent” to provide 2 digits past the decimal point<br />
<strong>HID</strong>_INPUT(Const_Var_Abs),<br />
<strong>HID</strong>_END_COLLECTION<br />
4.3.11 Environmental: Temperature<br />
// For reference: Complete <strong>HID</strong> report descriptor<br />
const unsigned char temp_report_descriptor[] = {<br />
<strong>HID</strong>_USAGE_PAGE_SENSOR,<br />
<strong>HID</strong>_USAGE_SENSOR_TYPE_ENVIRONMENTAL_TEMPERATURE,<br />
<strong>HID</strong>_COLLECTION(Physical),<br />
//feature reports (xmit/receive)<br />
<strong>HID</strong>_USAGE_PAGE_SENSOR,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_REPORTING_STATE,<br />
<strong>HID</strong>_LOGICAL_MIN_8(0),<br />
<strong>HID</strong>_LOGICAL_MAX_8(5),<br />
<strong>HID</strong>_REPORT_SIZE(8),<br />
<strong>HID</strong>_REPORT_COUNT(1),<br />
<strong>HID</strong>_COLLECTION(Logical),<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_REPORTING_STATE_NO_EVENTS,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_REPORTING_STATE_ALL_EVENTS,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_REPORTING_STATE_THRESHOLD_EVENTS,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_REPORTING_STATE_NO_EVENTS_WAKE,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_REPORTING_STATE_ALL_EVENTS_WAKE,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_REPORTING_STATE_THRESHOLD_EVENTS_WAKE,<br />
<strong>HID</strong>_FEATURE(Data_Arr_Abs),<br />
<strong>HID</strong>_END_COLLECTION,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_SENSOR_STATUS,<br />
<strong>HID</strong>_LOGICAL_MIN_8(0),<br />
<strong>HID</strong>_LOGICAL_MAX_32(0xFF,0xFF,0xFF,0xFF),<br />
<strong>HID</strong>_REPORT_SIZE(32),<br />
<strong>HID</strong>_REPORT_COUNT(1),<br />
<strong>HID</strong>_FEATURE(Data_Var_Abs), // up to VT_UI4 worth of status info<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_REPORT_INTERVAL,<br />
<strong>HID</strong>_LOGICAL_MIN_8(0),<br />
<strong>HID</strong>_LOGICAL_MAX_32(0xFF,0xFF,0xFF,0xFF),<br />
<strong>HID</strong>_REPORT_SIZE(32),<br />
<strong>HID</strong>_REPORT_COUNT(1),<br />
// <strong>HID</strong>_USAGE_SENSOR_UNITS_MILLISECOND,<br />
<strong>HID</strong>_UNIT_EXPONENT(0),<br />
<strong>HID</strong>_FEATURE(Data_Var_Abs),<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_SENSOR_CONNECTION_TYPE, // NAry<br />
<strong>HID</strong>_LOGICAL_MIN_8(0),<br />
<strong>HID</strong>_LOGICAL_MAX_8(2),<br />
<strong>HID</strong>_REPORT_SIZE(8),<br />
<strong>HID</strong>_REPORT_COUNT(1),<br />
<strong>HID</strong>_COLLECTION(Logical),<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_INTEGRATED,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_ATTACHED,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_CONNECTION_TYPE_PC_EXTERNAL,<br />
<strong>HID</strong>_FEATURE(Const_Arr_Abs),<br />
<strong>HID</strong>_END_COLLECTION,<br />
<strong>HID</strong>_USAGE_SENSOR_PROPERTY_CHANGE_SENSITIVITY_ABS,<br />
<strong>HID</strong>_LOGICAL_MIN_8(0),<br />
<strong>HID</strong>_LOGICAL_MAX_16(0xFF,0xFF),<br />
<strong>HID</strong>_REPORT_SIZE(16),<br />
<strong>HID</strong>_REPORT_COUNT(1),<br />
// <strong>HID</strong>_USAGE_SENSOR_UNITS_CELSIUS,<br />
<strong>HID</strong>_UNIT_EXPONENT(0x0E), // scale default unit “Celsius” to provide 2 digits past the decimal point<br />
<strong>HID</strong>_FEATURE(Data_Var_Abs),<br />
<strong>HID</strong>_USAGE_SENSOR_DATA(<strong>HID</strong>_USAGE_SENSOR_DATA_ENVIRONMENTAL_TEMPERATURE,<strong>HID</strong>_USAGE_SENSOR_DATA_MOD_MAX),<br />
<strong>HID</strong>_LOGICAL_MIN_16(0x01,0x80), // LOGICAL_MINIMUM (-32767)<br />
<strong>HID</strong>_LOGICAL_MAX_16(0xFF,0x7F), // LOGICAL_MAXIMUM (32767)<br />
<strong>HID</strong>_REPORT_SIZE(16),<br />
<strong>HID</strong>_REPORT_COUNT(1),<br />
// <strong>HID</strong>_USAGE_SENSOR_UNITS_CELSIUS,<br />
<strong>HID</strong>_UNIT_EXPONENT(0x0E), // scale default unit “Celsius” to provide 2 digits past the decimal point<br />
<strong>HID</strong>_FEATURE(Data_Var_Abs),