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By default, the IARM-Bus has the following Manager Components. The published events and RPC methods from these manager components can be found in their public header files.
On a standard system, you should see the following 3 processes running before executing your own application.

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• IARMDaemonMain
• irMgrMain
• pwrMgrMain 

To see the  IARM managers available in the device. Use the below command,

ps -aef|grep

...

Mgr*

...

root

...

462 1

...

0

...

05:

...

07 ?

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00:00:

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02 /usr/bin/mfrMgrMain
root 1195 1 0 05:07 ? 00:00:

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02 /usr/bin/sysMgrMain
root 1240 1 0 05:07 ? 00:00:02 /usr/bin/dsMgrMain
root 1343 1 1 05:07 ? 00:06:01 /usr/bin/irMgrMain
root 1545 1 0 05:07 ? 00:00:02 /usr/bin/pwrMgrMain
root 1593 1 0 05:07 ? 00:00:02 /usr/bin/deepSleepMgrMain

Bus Daemon

Executable name is IARMDaemonMain. The IARM Bus Daemon is a Manager Component with special privileges. 

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• libIARMBus.so is at a known library path.
• Daemon process IARMDaemonMain is running.
  
  • ps –aef | grep IARMDaemonMain
  • You see log message "Bus Daemon HeartBeat" on console or /opt/logs/uimgr_log.txt

  • cat /opt/logs/uimgr_log.txt

    No Format

    Oct 17 08:47:00 raspberrypi-rdk-hybrid-thunder IARMDaemonMain[234]: I-ARM Bus Daemon : HeartBeat at Thu Oct 17 08:47:00 2019 Oct 17 08:47:00 raspberrypi-rdk-hybrid-thunder IARMDaemonMain[234]: [1B blob data] Oct 17 08:47:01 raspberrypi-rdk-hybrid-thunder mfrMgrMain[462]: I-ARM MFR Lib: HeartBeat at Thu Oct 17 08:47:01 2019 Oct 17 08:47:01 raspberrypi-rdk-hybrid-thunder mfrMgrMain[462]: [1B blob data] Oct 17 08:47:04 raspberrypi-rdk-hybrid-thunder dsMgrMain[1240]: I-ARM BUS DS Mgr: HeartBeat at Thu Oct 17 08:47:04 2019 Oct 17 08:47:04 raspberrypi-rdk-hybrid-thunder dsMgrMain[1240]: [1B blob data] Oct 17 08:47:06 raspberrypi-rdk-hybrid-thunder pwrMgrMain[1545]: I-ARM POWER Mgr: HeartBeat at Thu Oct 17 08:47:06 2019 Oct 17 08:47:06 raspberrypi-rdk-hybrid-thunder pwrMgrMain[1545]: [1B blob data] Oct 17 08:52:00 raspberrypi-rdk-hybrid-thunder IARMDaemonMain[234]: I-ARM Bus Daemon : HeartBeat at Thu Oct 17 08:52:00 2019 Oct 17 08:52:00 raspberrypi-rdk-hybrid-thunder IARMDaemonMain[234]: [1B blob data] Oct 17 08:52:01 raspberrypi-rdk-hybrid-thunder mfrMgrMain[462]: I-ARM MFR Lib: HeartBeat at Thu Oct 17 08:52:01 2019 Oct 17 08:52:01 raspberrypi-rdk-hybrid-thunder mfrMgrMain[462]: [1B blob data] Oct 17 08:52:04 raspberrypi-rdk-hybrid-thunder dsMgrMain[1240]: I-ARM BUS DS Mgr: HeartBeat at Thu Oct 17 08:52:04 2019 Oct 17 08:52:04 raspberrypi-rdk-hybrid-thunder dsMgrMain[1240]: [1B blob data] Oct 17 08:52:06 raspberrypi-rdk-hybrid-thunder pwrMgrMain[1545]: I-ARM POWER Mgr: HeartBeat at Thu Oct 17 08:52:06 2019 Oct 17 08:52:06 raspberrypi-rdk-hybrid-thunder pwrMgrMain[1545]: [1B blob data] Oct 17 08:57:00 raspberrypi-rdk-hybrid-thunder IARMDaemonMain[234]: I-ARM Bus Daemon : HeartBeat at Thu Oct 17 08:57:00 2019 Oct 17 08:57:00 raspberrypi-rdk-hybrid-thunder IARMDaemonMain[234]: [1B blob data] Oct 17 08:57:01 raspberrypi-rdk-hybrid-thunder mfrMgrMain[462]: I-ARM MFR Lib: HeartBeat at Thu Oct 17 08:57:01 2019 Oct 17 08:57:01 raspberrypi-rdk-hybrid-thunder mfrMgrMain[462]: [1B blob data]

API Documentation

 To know more about SoC/Application level APIs details use in RDK, refer the link  IARM BUS API Documentation

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