Technical data

Console Driver Interface, Continued
Console Port
Driver
The fields of the console port drivers driver descriptor are the
same as the console class drivers driver descriptor, with one
exception: the port driver contains pointers to the console port
level routines. The port driver supports all functions whether
or not the device supports console output only or console input
/output. Figure 2–12 shows the function block of the port driver.
Figure 2–12 Console Port Driver Function Block
LJ-01823-TI0
Device Id
INIT_DRIVER Pointer
GETCHAR Pointer
PUTCHAR Pointer
RESET_INPUT Pointer
INIT _INPUT Pointer
RESET_OUTPUT Pointer
INIT_OUTPUT Pointer
Continued on next page
2–34