RTEMS 4.9.0 On-Line Library

Console Driver Initialization

BSP and Device Driver Development Guide

The driver initialization is called once during the RTEMS initialization process.

The console_initialize function has to:

initialize Termios support: call rtems_termios_initialize(). If Termios has already been initialized by another device driver, then this call will have no effect.
Initialize the UART: This procedure should be described in the UART manual. This procedure MUST be followed precisely. This procedure varies but usually consists of:
- reinitialize the UART channels
- set the channels configuration to the Termios default: 9600 bauds, no parity, 1 stop bit, and 8 bits per character

If interrupt driven, register the console interrupt routine to RTEMS:

rtems_interrupt_catch(
    InterruptHandler, CONSOLE_VECTOR, &old_handler);

enable the UART channels.
register the device name: in order to use the console (i.e. being able to do printf/scanf on stdin, stdout, and stderr), some device must be registered as "/dev/console":
```
rtems_io_register_name ("dev/console", major, i);
```

BSP and Device Driver Development Guide