picld
The Platform Information and Control Library (PICL) provides
a mechanism to publish platform-specific information for
clients to access in a platform-independent way. picld main-
tains and controls access to the PICL information from
clients and plug-in modules. The daemon is started in both
single-user and multi-user boot mode.
这个是系统进程,检测到你机器前面钥匙的位置改变到"locked"的位置。