RS5C372RTC(4) BSD Kernel Interfaces Manual RS5C372RTC(4)NAME
rs5c372rtc -- RICOH RS5C372A and RS5C372B real-time clock
SYNOPSIS
rs5c372rtc at iic? addr 0x32
DESCRIPTION
The rs5c372rtc driver provides support for the RICOH RS5C372A and RS5C372B real-time clock chips.
Access methods to retrieve and set date and time are provided through the TODR interface defined in todr(9).
SEE ALSO iic(4), todr(9)HISTORY
The rs5c372rtc device appeared in NetBSD 4.0.
BUGS
The driver only supports clock function.
BSD September 15, 2005 BSD
Check Out this Related Man Page
INTERSIL7170(4) BSD Kernel Interfaces Manual INTERSIL7170(4)NAME
intersil7170 -- Intersil ICM7170 time-of-day clock driver
SYNOPSIS
#include <dev/ic/intersil7170reg.h>
#include <dev/ic/intersil7170var.h>
define intersil7170
file dev/ic/intersil7170.c intersil7170
DESCRIPTION
The 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 fol-
lows:
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;
};
bus_tag
bus_handle Specify bus space access to the chip's non-volatile memory (including the clock registers).
sc_handle TODR handle passed to the todr_attach() function to register todr(9) interface.
sc_year0 The actual year represented by the clock's 'year' counter. This is generally dependent on the system configuration in
which the clock device is mounted. For instance, on Sun Microsystems machines the convention is to have clock's two-
digit year represent the year 1968.
sc_flag This flag is used to specify machine-dependent features.
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.
SEE ALSO intro(4), todr(9)HISTORY
The intersil7170 driver first appeared in NetBSD 1.5.
AUTHORS
The intersil7170 driver was written by Paul Kranenburg <pk@NetBSD.org>.
BSD October 1, 2006 BSD
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