Nov 2

hwclock and rtc device driver

Linux No comments »
Linux hwclock seems to behave weird on newer kernels..
zebulon:/etc# hwclock  --systohc

select() to /dev/rtc to wait for clock tick timed out


Some solutions ..
1. disabling APIC / ACPI
2. adding --directisa to hwclock.
3. making the kernel work.

Three rtc driver in linux are :
1. rtc (the old rtc driver)
2. genrtc (generic RTC emulation)
3. rtc-dev (new RTC class framework)

Some people report that using rtc-dev as a builtin driver ( not module ) seems to work.

Posted by NickNack

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