Timezone handling is broken in this version since it's always
passing UTC time into the kernel, even on systems where the
RTC uses the local timezone.
I think that bug must come from bugs in how the system used to
to originally develop this code handled the RTC timezone. Both
RTCs should have been kept in UTC ... but only one of them was.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cleanups for rtcwake:
- Minor doc updates: highlight the framebuffer problem,
give correct history of this code
- Improve debug output
- Fix some linelength bugs
Note that this code predated the sysfs "wakealarm" mechanism, and
works around several now-fixed bugs in the kernel RTC framework.
Nowadays it would make sense to make this program use only the sysfs
interface to the RTC, using "since_epoch" instead of RTC_RD_TIME and
"wakealarm" instead of the four other ioctls. That could simplify
the mess involved in timezone handling.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Karel Zak <kzak@redhat.com>
Mike Frysinger
David Brownell
Karel Zak
Bernhard Walle