Precise Busy Wait

Device drivers may use precise busy wait services to wait for a very short time. Note that busy wait means that the caller waits without releasing the CPU, as if executing a busy loop.

Note that these services may be used during the driver initialization process.

Precise busy wait related services are described below. See the man pages for complete descriptions of listed commands:

usecBusyWait

waits for (at least) the given number of micro-seconds