diff --git a/libc/kernel/common/linux/rtc.h b/libc/kernel/common/linux/rtc.h
new file mode 100644
index 0000000..b51bc71
--- /dev/null
+++ b/libc/kernel/common/linux/rtc.h
@@ -0,0 +1,72 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_RTC_H_
+#define _LINUX_RTC_H_
+
+struct rtc_time {
+ int tm_sec;
+ int tm_min;
+ int tm_hour;
+ int tm_mday;
+ int tm_mon;
+ int tm_year;
+ int tm_wday;
+ int tm_yday;
+ int tm_isdst;
+};
+
+struct rtc_wkalrm {
+ unsigned char enabled;
+ unsigned char pending;
+ struct rtc_time time;
+};
+
+struct rtc_pll_info {
+ int pll_ctrl;
+ int pll_value;
+ int pll_max;
+ int pll_min;
+ int pll_posmult;
+ int pll_negmult;
+ long pll_clock;
+};
+
+#define RTC_AIE_ON _IO('p', 0x01)  
+#define RTC_AIE_OFF _IO('p', 0x02)  
+#define RTC_UIE_ON _IO('p', 0x03)  
+#define RTC_UIE_OFF _IO('p', 0x04)  
+#define RTC_PIE_ON _IO('p', 0x05)  
+#define RTC_PIE_OFF _IO('p', 0x06)  
+#define RTC_WIE_ON _IO('p', 0x0f)  
+#define RTC_WIE_OFF _IO('p', 0x10)  
+
+#define RTC_ALM_SET _IOW('p', 0x07, struct rtc_time)  
+#define RTC_ALM_READ _IOR('p', 0x08, struct rtc_time)  
+#define RTC_RD_TIME _IOR('p', 0x09, struct rtc_time)  
+#define RTC_SET_TIME _IOW('p', 0x0a, struct rtc_time)  
+#define RTC_IRQP_READ _IOR('p', 0x0b, unsigned long)  
+#define RTC_IRQP_SET _IOW('p', 0x0c, unsigned long)  
+#define RTC_EPOCH_READ _IOR('p', 0x0d, unsigned long)  
+#define RTC_EPOCH_SET _IOW('p', 0x0e, unsigned long)  
+
+#define RTC_WKALM_SET _IOW('p', 0x0f, struct rtc_wkalrm) 
+#define RTC_WKALM_RD _IOR('p', 0x10, struct rtc_wkalrm) 
+
+#define RTC_PLL_GET _IOR('p', 0x11, struct rtc_pll_info)  
+#define RTC_PLL_SET _IOW('p', 0x12, struct rtc_pll_info)  
+
+#define RTC_IRQF 0x80  
+#define RTC_PF 0x40
+#define RTC_AF 0x20
+#define RTC_UF 0x10
+
+#endif