what are headers for?

[cprogrammer2003]

can anyone tell me what is including a header for? for example:
#include <ezusb.h>
#include <ezregs.h>

[quzah]

Originally posted by cprogrammer2003
can anyone tell me what is including a header for? for example:
#include <ezusb.h>
#include <ezregs.h>

These are extremely basic C questions. Grab a C book. Are you sure you should really be trying to program hardware, since you don't know what a header file or a define statement does? You include header files if you want access to functions / methods / etc defined in other files.

For example, if you want standard C string functions, you include string.h.

Quzah.