Re: rtc_valid_tm doesn't check tm_wday

David Brownell
2008-04-29T10:40:44Z

On Monday 28 April 2008, Uwe Kleine-König wrote:
> Hello,
>
> I'm currently writing an rtc driver and want to use rtc_valid_tm to
> assert to have a valid date before writing it to the rtc.
>
> Now I wonder why rtc_valid_tm doesn't check tm_wday for being in the
> range [0 .. 6]. Is there a reason?

As far as I know, the kernel doesn't use tm_wday, tm_yday, or
tm_isdst ... so none of those fields are expected to be valid.
See the rtc(4) manpage.

- Dave