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DS (Device Settings) Manager is responsible for managing the following operations,

Audio Output Ports (Volume, Mute, etc.)
Video Ouptut Ports (Resolutions, Aspect Ratio, etc.)
Front Panel Indicators
Zoom Settings
Display (Aspect Ratio, EDID data etc.)
General Host configuration (Power managements, event management etc.)

Events

IARM_BUS_DSMGR_EVENT_HDMI_HOTPLUG

Event to notify HDMI hotplug event ie: whether display is connected or not

IARM_BUS_DSMGR_EVENT_HDCP_STATUS

Event to notify whether HDCP is authenticated or not

IARM_Bus_DSMgr_EventData_t *eventData = (IARM_Bus_DSMgr_EventData_t *)data;
IARM_Bus_SYSMgr_EventData_t HDCPeventData;
int status = eventData->data.hdmi_hdcp.hdcpStatus;
/* HDCP is enabled */
HDCPeventData.data.systemStates.stateId = IARM_BUS_SYSMGR_SYSSTATE_HDCP_ENABLED;
HDCPeventData.data.systemStates.state = 1;
if (status == dsHDCP_STATUS_AUTHENTICATED )
{
	__TIMESTAMP();printf("Changed status to HDCP Authentication Pass !!!!!!!! ..\r\n");
	HDCPeventData.data.systemStates.state = 1;
}
else if (status == dsHDCP_STATUS_AUTHENTICATIONFAILURE )
{
	__TIMESTAMP();printf("Changed status to HDCP Authentication Fail !!!!!!!! ..\r\n");
	HDCPeventData.data.systemStates.state = 0;
}
IARM_Bus_BroadcastEvent(IARM_BUS_SYSMGR_NAME, (IARM_EventId_t) IARM_BUS_SYSMGR_EVENT_SYSTEMSTATE, (void *)&HDCPeventData, sizeof(HDCPeventData));