Re: [gentoo-user] Makeing /dev/rtc1 accessible as soon as possible - how?

[meino.cramer@gmx.de]

Mick <michaelkintzios@gmail.com> [13-08-25 13:44]:
> On Sunday 25 Aug 2013 11:35:29 meino.cramer@gmx.de wrote:
> > Paul Colquhoun <paulcol@andor.dropbear.id.au> [13-08-25 12:04]:
> > > On Sun, 25 Aug 2013 06:04:13 meino.cramer@gmx.de wrote:
> > > > Hi,
> > > > 
> > > > There are two RTCs in my system:
> > > > /dev/rtc0 and /dev/rtc1
> > > > 
> > > > rtc0 is not powered by a battery and forgets time/date
> > > > with system shutdown and rtc1 is a I2C-rtc (DS3231) which
> > > > is powered by a battery. It is extremly accurate in comparison
> > > > with rtc0.
> > > > 
> > > > rtc0 is accessible with system boot - rtc1 is not (current state).
> > > 
> > > I know this might be obvious, but just in case:
> > > 
> > > Have you checked to see if the dud RTC can be disabled in the BIOS?
> > > 
> > > Or completely remove its drivers from the kernel?
> > 
> > Hi Paul,
> > 
> > I cannot remove rtc0 since it is integrated into the CPU. I cannot
> > remove the CPU for various reasons... ;)
> > 
> > I put the script (see previous mail) into /etc/init.d and call it now
> > at sysinit times. This works so far...but I still have entries in /sys
> > and /proc which show 1.1.1970.
> > 
> > Is there any way to get rid of the need to use "echo..bla..bla" into
> > files of the sysfs but to give the kernel the needed informations
> > directly, so rtc1 is available to the kernel...?
> 
> I noticed you mentioned rtc0 is not powered by a battery, but that's what the 
> CMOS battery does.  I'm curious why you don't add a new CMOS battery to your 
> MoBo?
> -- 
> Regards,
> Mick

Hi Mick,

this "MoBo" has neither a BIOS and therefore no BIOS battery.
I added the DS3231 rtc myself to get a battery buffered rtc.

Best regards,
mcc