RTEMS 4.8.1 On-Line Library

Discrete Driver Get Last Written Values

BSP and Device Driver Development Guide

18.11: Get Last Written Values

This is one of the IOCTL functions supported by the I/O control device driver entry point. When this IOCTL function is invoked, the following information is returned to the caller:

last value written to the specified output word
timestamp of when the last write was performed

BSP and Device Driver Development Guide