diff options
Diffstat (limited to 'include/linux/mc146818rtc.h')
| -rw-r--r-- | include/linux/mc146818rtc.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h index 432b2fa2492..bdc01127dce 100644 --- a/include/linux/mc146818rtc.h +++ b/include/linux/mc146818rtc.h @@ -18,6 +18,16 @@ #ifdef __KERNEL__ #include <linux/spinlock.h> /* spinlock_t */ extern spinlock_t rtc_lock; /* serialize CMOS RAM access */ + +/* Some RTCs extend the mc146818 register set to support alarms of more + * than 24 hours in the future; or dates that include a century code. + * This platform_data structure can pass this information to the driver. + */ +struct cmos_rtc_board_info { + u8 rtc_day_alarm; /* zero, or register index */ + u8 rtc_mon_alarm; /* zero, or register index */ + u8 rtc_century; /* zero, or register index */ +}; #endif /********************************************************************** |