| INTERSIL7170(4) | Device Drivers Manual | INTERSIL7170(4) | 
intersil7170 —
#include
  <dev/ic/intersil7170reg.h>
#include
  <dev/ic/intersil7170var.h>
define intersil7170
  
  file dev/ic/intersil7170.c intersil7170
intersil7170 driver provides access to the Intersil
  ICM7170 time-of-day clock chip. Access methods to retrieve and set date and
  time are provided through the TODR interface defined in
  todr(9).
To tie an instance of this device to the system, use the
    intersil7170_attach() function and the
    intersil7170_softc structure defined as follows:
void
    intersil7170_attach(struct
    intersil7170_softc *)
struct intersil7170_softc {
	struct device	sc_dev;
	bus_space_tag_t	sc_bst;
	bus_space_handle_t sc_bsh;
	struct todr_chip_handle sc_handle;
	u_int		sc_year0;
	u_int		sc_flag;
};
todr_attach() function
      to register todr(9)
    interface.Note that if the resulting date retrieved with the todr_gettime() method is earlier that January 1, 1970, the driver will assume that the chip's year counter actually represents a year in the 21st century. This behaviour can be overridden by setting the INTERSIL7170_NO_CENT_ADJUST flag in sc_flag.
intersil7170 driver first appeared in
  NetBSD 1.5.
intersil7170 driver was written by
  Paul Kranenburg ⟨pk@NetBSD.org⟩.
| October 1, 2006 | NetBSD 10.0 |