How do I set the hardware clock with Python on embedded linux systems?
Regards,
+4
A:
Probably no easy way other than doing an os.system() call.
import os
os.system('hwclock --set %s' % date_str)
or using the 'date' command
import os
os.system('date -s %s' % date_str)
or if you are dying to do some c coding, wrapping the system calls with swig... but I think that would be more work than its worth.
zdav
2010-02-03 17:40:23
It should be possible to do -- provided the rtc or rtcN driver is present -- via ioctl, in fcntl per http://docs.python.org/library/fcntl.html and rtc(4) (or the kernel's Documentation/rtc.txt) -- however, if you've got Python on the system, hwclock should be an easy fit.
Arthur Shipkowski
2010-02-03 18:15:09
Zdav,thanks for the help. Just a note: I'm using busybox, and first a need to change the system clock with "os.system('date -s %s' % date_str)", and then set the hw clock from system clock with os.system('hwclock -w). Regards
Diego Sueiro
2010-02-04 10:01:46