how to get time and date

[steffi]

Hi,
I am working on DM355 leopard board which is having 2.6.10 kernel and i want to get the time,data,and year when some externel interrupt comes .how will i do this? plz help me??

Thanks

[Rubberman]

Huh? What do you mean EXACTLY by "external interrupt". I believe that what you mean by "interrupt" and what I understand it to mean are very different things...

[steffi]

Actually leopard board will take snap whenever some object comes . I want to track the time,date and year whenever it takes snap. For that should i read some rtc registers?? is that different for different processors??

[Rubberman]

You still are not (for me) being clear enough in what you mean, PRECISELY, by "whenever some object comes"...

[steffi]

hm.. In leopard board there is one camera module so i can take picture . If i am taking picture i want to save the picture as well as time, date and year.

[Rubberman]

Well, when you save the image, the file system will preserve the created date+time of the image when it was stored. This does not require any additional operations.

[steffi]

Hi
I could print time+date+year from rtc but i want to write it in to a file. Any idea??

rtc_fd = open("/dev/rtc", O_RDONLY,0);
ret = ioctl(rtc_fd, RTC_RD_TIME, &rtc_tm);
printf("Current RTC date/time is %d-%d-%d, %02d:%02d:%02d.\r\n",
rtc_tm.tm_mday, rtc_tm.tm_mon + 1, rtc_tm.tm_year+1900,
rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);

Thanks