Sysevent Framework

The sysevent framework enables notification of kernel-level and user-level system events to appropriate applications. Events can include hardware and software state changes, errors, and faults.

Components of the sysevent framework include the following:

• syseventd daemon

• syseventadm command

• Library APIs for event data extraction and sysevent subscription

• An interface for driver-level system event, ddi_log_sysevent

The syseventd daemon is a user-level daemon that accepts delivery of system event buffers from the kernel. After an event buffer has been delivered to syseventd, the daemon then attempts to propagate the event to all interested end-event subscribers.

The syseventadm command can be used to configure event specifications. These specifications are subsequently used to invoke commands, applications, or scripts in response to a system event.

For information on the sysevent kernel and library APIs, see the man pages syseventadm(1M), syseventconfd(1M), and syseventd(1M).

See ddi_log_sysevent(9F) for information about driver-level event notification logging.