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    SubjectRe: RTC_DRV_CMOS can break userspace interface
    On Sun, May 27, 2007 at 08:03:51PM +0100, Matthew Garrett wrote:

    > (It doesn't really help that rtc-cmos doesn't load on this machine, but
    > I'll try to track that down later - right now I suspect some sort of PNP
    > issue)

    Ah, no, it's because the ioports for the rtc-cmos driver are already
    claimed by the old driver from CONFIG_RTC. The following configuration
    is valid in Kconfig:


    but will disable /proc/acpi/wakeup. It'll also be impossible to load
    CONFIG_RTC_CMOS because CONFIG_RTC has grabbed the io ports, so it's not
    possible to use the new interface. This situation doesn't appear to be
    documented, which is less than ideal...

    Matthew Garrett |
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