Messages in this thread | | | Date | Sun, 14 Nov 2004 13:27:10 +0100 | From | Florian Schmidt <> | Subject | Re: RTC Chip and IRQ8 on 2.6.9 |
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On Fri, 12 Nov 2004 11:47:10 -0500 (EST) linux-os <linux-os@chaos.analogic.com> wrote:
> > I must use the RTC and IRQ8 in a driver being ported from > 2.4.20 to 2.6.9. When I attempt request_irq(8,...), it > returns -EBUSY. I have disabled everything in .config > that has "RTC" in it. > > The RTC interrupt is used to precisely time the sequencing > of a precision A/D converter. It is mandatory that I use > it because the precise interval is essential for its > IIR filter that produces 20 bits of resolution from a > 16 bit A/D. > > 8: 1 IO-APIC-edge rtc
maybe it's the HPET timer providing rtc emulation?
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