/* Determine if src contains one or more non-zero bytes.  */
uint8_t mem_nz(uint8_t *src, uint16_t len)
/* Determine if src contains one or more non-zero bytes.  */
uint8_t mem_nz(uint8_t *src, uint16_t len)
{
	while (len--) {
		if (*src++) {
			return 1;
		}
	}
	return 0;
}