RTEMS 4.7.2 On-Line Library
Console Driver Serial Driver Functioning Overview
BSP and Device Driver Development Guide
8.4: Serial Driver Functioning Overview
The following Figure shows how a Termios driven serial driver works:
-
Figure not included in this draft
The following list describes the basic flow.
- the application programmer uses standard C library call (printf,
scanf, read, write, etc.),
- C library (in fact that's Cygnus Newlib) calls RTEMS
system call interface. This code can be found in the
c/src/lib/libc
directory.
- Glue code calls the serial driver entry routines.
BSP and Device Driver Development Guide
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