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📄 rtc-jazz.c

📁 Linux内核源代码 为压缩文件 是<<Linux内核>>一书中的源代码
💻 C
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/* $Id: rtc-jazz.c,v 1.2 1998/06/25 20:19:14 ralf Exp $ * * This file is subject to the terms and conditions of the GNU General Public * License.  See the file "COPYING" in the main directory of this archive * for more details. * * RTC routines for Jazz style attached Dallas chip. * * Copyright (C) 1998 by Ralf Baechle */#include <linux/mc146818rtc.h>#include <asm/io.h>#include <asm/jazz.h>static unsigned char jazz_rtc_read_data(unsigned long addr){	outb_p(addr, RTC_PORT(0));	return *(char *)JAZZ_RTC_BASE;}static void jazz_rtc_write_data(unsigned char data, unsigned long addr){	outb_p(addr, RTC_PORT(0));	*(char *)JAZZ_RTC_BASE = data;}static int jazz_rtc_bcd_mode(void){	return 0;}struct rtc_ops jazz_rtc_ops = {	&jazz_rtc_read_data,	&jazz_rtc_write_data,	&jazz_rtc_bcd_mode};

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