Library of BIOSUSB

Hi,

I am using the BIOSUSB.
(Use the device C6748)

Although contains the printf function in the library of BIOSUSB,
Is there a way to stop this function?

When you add the attached source to try,
Console output is no longer.
Whether this process will not be a problem?

int printf(const char *, ...);


int printf(const char *str, ...)
{
	return 0;
}

/* EOF */

Best Regards,

hamada