site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=gUHvbwaona1sKe/r1SZH3SZhC/R7eWcXG85DRGDxN5I=; b=Vo2I7TvGr1HwxPTJ7VfguroK26g8nM3/wD8jdCp97XCYt3zWWXe30jLslKbfpAyvC5 NmRDAT9HKehYMgQnigN6J3SSEAkVBnk4saGmAfxigM+NxRXqoFrTryto780gpi69IvkO ny+GkCvH0FUGLLXRturR5ubFionn0FJVvkxEc= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=eJvn3dF3mZiOqSJO45D4OpiXifBE3QanJd/wzrlMtkbbXqZy4OeUQgSffx5nAflV4z x0sikNcaAtQlJue2FLZQtqEiOAq9PKQQUUfGW5JCdYADYfteCkjEcKjyT5Srx+mfKq1K RaN6LJWic3YyiDVOU2d1PcJFkmauemVm8o2y8= On Tue, Nov 18, 2008 at 8:46 PM, Chris Suter <csuter@sutes.co.uk> wrote: <snip>
Is there a reason you need to use IOFilterInterruptEventSource rather than IOInterruptEventSource? I mean, is performance that critical and will there be a large number of ghost interrupts? -- Chris I think filter event sources are appropriate (but am happy to stand corrected). Our device generates several different kinds of interrupt that are handled by different child IOService nubs containing their own filter event sources that test whether the interrupt is of concern to that nub. Additionally, being attached to a shared interrupt controller provided by our top nub's provider there appears to be interrupts generated every 10usec - most of which are not generated by our device and we should filter out and ignore.
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