[lm-sensors] RTC interface

[lm-sensors] RTC interface

[Terence Soh]

Hi,

I've some questions about RTC in I2C environment and I'm using rtc8564.c.

1) Do we update the linux date and time (not the RTC) in user space or 
kernel space?
2) If I update in the kernel, what are the appropriate functions for it?
3) If I update it in user space, which dev do I write/read to? 
Apparently /dev/rtc does not exist when I try to cat it.

Thanks,
Terence.

[lm-sensors] RTC interface

[Alessandro Zummo]

On Wed, 30 Nov 2005 10:32:04 +0800
Terence Soh <gopher@singnet.com.sg> wrote:


> I've some questions about RTC in I2C environment and I'm using rtc8564.c.
> 
> 1) Do we update the linux date and time (not the RTC) in user space or 
> kernel space?
> 2) If I update in the kernel, what are the appropriate functions for it?
> 3) If I update it in user space, which dev do I write/read to? 
> Apparently /dev/rtc does not exist when I try to cat it.

 Hello,

  the kernel actually lacks a good support for i2c rtcs... which platform
 are you using it on?

 If it's ARM based , I can give you some hints.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Turin, Italy

  http://www.towertech.it