Family: IMX6
Description: We are trying to read hardware device time (camera device ) from the iMX6 board using open ioctl call. However, we are getting an error and negative value is returned from ioctl API. Please suggest what could be the issue or how to get the exact error code/detailed description?
This issue is occurring at the Production domain.
The rtc0 file has a soft link as shown in the attached file.
Please find the snippet of the code below:
int fd, retval;
fd = open("/dev/rtc0", O_RDWR);
if(fd < 0)
{
printf("unable to open");
}
/* Read the RTC time/date */
retval = ioctl(fd, RTC_RD_TIME, &rt);
if (retval == -1) {
printf("RTC_RD_TIME ioctl error");
}
close(fd);
