Re: IRQ blocking when reading audio CDs

From: Lee Revell
Date: Tue Sep 28 2004 - 14:24:32 EST


On Mon, 2004-09-27 at 01:52, Jens Axboe wrote:
> On Sun, Sep 26 2004, Gundolf Kiefer wrote:
> > Dear Jens (& Christoph),
> >
> > on my media PC (a Pentium II 350 MHz running Debian Woody with Kernel
> > 2.4.25), I have problems using LIRC 0.6.6 with a serial IR reveiver when at
> > the same time some application (cdparanoia, xmms/Audio CD reader) is
> > reading audio data from a CD.
>
> Upgrade to 2.6, it can use DMA for cdda extraction. If you cannot for
> some reason, Andrew had an ide-cd hack to enable dma in 2.4 for this.

Seems like it should also work in PIO mode as long as unmask_irq is set.

Lee

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