why is CONFIG_RTC not set?

dragoran drago01 at gmail.com
Sat Aug 4 18:30:32 UTC 2007


On 8/4/07, Dave Jones <davej at redhat.com> wrote:
>
> On Sat, Aug 04, 2007 at 08:10:51PM +0200, dragoran wrote:
> > On 8/4/07, Dave Jones <davej at redhat.com> wrote:
> > >
> > > On Sat, Aug 04, 2007 at 08:02:02PM +0200, dragoran wrote:
> > > > On 8/4/07, Dave Jones <davej at redhat.com> wrote:
> > > > >
> > > > > On Sat, Aug 04, 2007 at 10:34:12AM +0200, dragoran wrote:
> > > > > > While debugging some qemu problems I wanted to try change the
> value
> > > in
> > > > > >
> > > > > > /proc/sys/dev/rtc/max-user-freq
> > > > > >
> > > > > > like suggested from qemu but there is no rtc dir in
> /proc/sys/dev/
> > > > > > a cat /boot/config-`uname -r` | grep CONFIG_RTC shows this:
> > > > > >
> > > > > > # CONFIG_RTC is not set
> > > > > > [..]
> > > > > >
> > > > > > why is this disabled? Last time I used it it was there (was a
> while
> > > ago
> > > > > > but it worked)
> > > > > > Reason fro this?
> > > > >
> > > > > We're using the CONFIG_RTC_CLASS drivers instead.
> > > >
> > > >
> > > > ok, how can I change the max user freq with this drivers?
> > > > a quick google found nothing usefull...
> > >
> > > qemu wants to raise that limit. the old driver had a limit of 64hz
> > > unless you used the override.  The new driver doesn't seem to have
> > > this check.  It's arguable that it should, and it too should
> > > have a sysctl though.
> >
> >
> > so if I understand correctly this driver  has hardcoded limits that
> can't be
> > changed from userspace (yet) ?
>
> No, it has no limits.


ok
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