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Diffstat (limited to 'libc/kernel/uapi/linux/rtc.h')
-rw-r--r--libc/kernel/uapi/linux/rtc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libc/kernel/uapi/linux/rtc.h b/libc/kernel/uapi/linux/rtc.h
index 3312f69de..8e70eba5c 100644
--- a/libc/kernel/uapi/linux/rtc.h
+++ b/libc/kernel/uapi/linux/rtc.h
@@ -69,6 +69,7 @@ struct rtc_pll_info {
#define RTC_VL_BACKUP_LOW _BITUL(1)
#define RTC_VL_BACKUP_EMPTY _BITUL(2)
#define RTC_VL_ACCURACY_LOW _BITUL(3)
+#define RTC_VL_BACKUP_SWITCH _BITUL(4)
#define RTC_VL_READ _IOR('p', 0x13, unsigned int)
#define RTC_VL_CLR _IO('p', 0x14)
#define RTC_IRQF 0x80