At Wed, 30 May 2007 18:06:12 +0530, Pharaoh . wrote: > > On 5/29/07, Takashi Iwai <tiwai@xxxxxxx> wrote: > > At Mon, 28 May 2007 21:41:59 +0530, > > Pharaoh . wrote: > > > > > > Hi > > > > > > I am referring omap-alsa-dma.c and the related codec files. We usually > > > register the IRQ handler by calling > > > request_irq() function but in this mentioned files the IRQ handler etc is > > > defined but it is not registered anywhere i.e. request_irq is not used > > > anywhere. Is there any other way of registering irq handlers? The irq > > > handlers address is passed to > > > omap_request_dma, but there also it is not registered. I am missing the > > > entire thing? > > > > There is nothing but request_irq(). So, it implies that your code > > flow isn't somehow correct. Missing probe hooks? > > > > > > Takashi > > > > > Apologies if this sounds novice, but after referring the omap specific > alsa drivers, I wasn't able to locate any request_irq function getting > called, I have traced the omap_request_dma function but it also > doesn't explicaitly call request_irq, but in the file > arch/arm/plat-omap/dma.c there is call arch_initcall(omap_init_dma), > which calls request_irq. As per my humble knowledge this is part of > board specific init and is done at boot time, so does this mean that > it is done only once at boot time and any driver specific callback is > called from this function? Can anyone throw more light on this, or > answer my basic question why there is no request_irq in any of the > omap specific files? I am using 2.6.19 kernel. Ah, I see it's OMAP specific thing. Then omap_request_dma() should register its own handler. Call it appropriately. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
