I'm on 3.6.10-8.fc18.armv7hl.highbank, though I see the same configuration on 3.9.2-200.fc18.armv7hl
I can't suspend using rtcwake and it seems it's because this kernel config option is disabled
# rtcwake -m $state -t `date -u -d "+ $SLEEP_TIME minutes" '+%s'` rtcwake: cannot open /sys/class/rtc/rtc0/device/power/wakeup: No such file or directory rtcwake: /dev/rtc0 not enabled for wakeup events
Do I understand it correctly and if so can it be enabled?
On Mon, May 20, 2013 at 10:01 PM, John Brier jbrier@redhat.com wrote:
I'm on 3.6.10-8.fc18.armv7hl.highbank, though I see the same configuration on 3.9.2-200.fc18.armv7hl
I can't suspend using rtcwake and it seems it's because this kernel config option is disabled
# rtcwake -m $state -t `date -u -d "+ $SLEEP_TIME minutes" '+%s'` rtcwake: cannot open /sys/class/rtc/rtc0/device/power/wakeup: No such file or directory rtcwake: /dev/rtc0 not enabled for wakeup events
Do I understand it correctly and if so can it be enabled?
It's not enable on the mainline Fedora kernel and for non ARM specific feature we inherit from the config-generic to ensure a consistent as possible experience across the various architectures as is possible.
I've added the kernel mailing list into this reply as they should be able to shed more light onto why it's not enabled and whether the above is correct.
Peter
On 05/20/2013 06:49 PM, Peter Robinson wrote:
On Mon, May 20, 2013 at 10:01 PM, John Brier jbrier@redhat.com wrote:
I'm on 3.6.10-8.fc18.armv7hl.highbank, though I see the same configuration on 3.9.2-200.fc18.armv7hl
I can't suspend using rtcwake and it seems it's because this kernel config option is disabled
# rtcwake -m $state -t `date -u -d "+ $SLEEP_TIME minutes" '+%s'` rtcwake: cannot open /sys/class/rtc/rtc0/device/power/wakeup: No such file or directory rtcwake: /dev/rtc0 not enabled for wakeup events
Do I understand it correctly and if so can it be enabled?
It's not enable on the mainline Fedora kernel and for non ARM specific feature we inherit from the config-generic to ensure a consistent as possible experience across the various architectures as is possible.
I've added the kernel mailing list into this reply as they should be able to shed more light onto why it's not enabled and whether the above is correct.
Peter
oh. rtcwake works fine on RHEL so I assumed it was disabled in fedora on ARM only. however I'm not even seeing that option on my RHEL 6.3 VM:
[root@jb-rhel63 ~]# grep -i wake /boot/config-2.6.32-279.* [root@jb-rhel63 ~]#
So I may not understand what kernel config options are relevant to that support.
On Tue, May 21, 2013 at 12:32 AM, John Brier jbrier@redhat.com wrote:
On 05/20/2013 06:49 PM, Peter Robinson wrote:
On Mon, May 20, 2013 at 10:01 PM, John Brier jbrier@redhat.com wrote:
I'm on 3.6.10-8.fc18.armv7hl.highbank, though I see the same configuration on 3.9.2-200.fc18.armv7hl
I can't suspend using rtcwake and it seems it's because this kernel config option is disabled
# rtcwake -m $state -t `date -u -d "+ $SLEEP_TIME minutes" '+%s'` rtcwake: cannot open /sys/class/rtc/rtc0/device/power/wakeup: No such file or directory rtcwake: /dev/rtc0 not enabled for wakeup events
Do I understand it correctly and if so can it be enabled?
It's not enable on the mainline Fedora kernel and for non ARM specific feature we inherit from the config-generic to ensure a consistent as possible experience across the various architectures as is possible.
I've added the kernel mailing list into this reply as they should be able to shed more light onto why it's not enabled and whether the above is correct.
Peter
oh. rtcwake works fine on RHEL so I assumed it was disabled in fedora on ARM only. however I'm not even seeing that option on my RHEL 6.3 VM:
[root@jb-rhel63 ~]# grep -i wake /boot/config-2.6.32-279.* [root@jb-rhel63 ~]#
So I may not understand what kernel config options are relevant to that support.
I don't think they're relevant TBH, they seem to be more related to android at the current point in time.
https://lwn.net/Articles/479841/
Peter
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John Brier -
Peter Robinson