1. 根目录:
2. arch
3. x86
4. include
5. asm
6. mrst-vrtc.h

#ifndef _MRST_VRTC_H
#define _MRST_VRTC_H

extern unsigned char vrtc_cmos_read(unsigned char reg);
extern void vrtc_cmos_write(unsigned char val, unsigned char reg);
extern unsigned long vrtc_get_time(void);
extern int vrtc_set_mmss(unsigned long nowtime);

#endif