2.6.24.3 smdk2440的rtc驱动测试

2.6.24.3 smdk2440的rtc驱动测试

creator
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2.6.24.3 内核已经有支援RTC，只要选择就可以在Device Driver –>Real Time Clock -> 选中s3c rtc就可以。
 主设备号应该是kernel动态分配的，我的板子上254，mknode一个/dev/rtc   
 同时加入s3c_device_rtc：
 static struct platform_device *smdk2440_devices[] __initdata = {
    &s3c_device_usb,
    &s3c_device_lcd,
    &s3c_device_wdt,
    &s3c_device_i2c,
    &s3c_device_iis,
    &s3c_device_sdi,   //creator added
    &s3c_device_rtc,  //add device。
};                                                                                                                                                                                                                                                                                                                                
                                                                                                                                                                  
可以通过date设定时间                                                                                                                                                                
假如配置系统时间为2008年8月9日，10：11分，能够这样配置                                                                                                                            
1>     date 080910112008                                                                                                                                                           
2>     hwclock –w    //写入了                                                                                                                                                             
                                                                                                                                                                            
反复执行hwclock ，看看是否时间在变化。