From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: ich10 usb_host vs snd_usb_audio Hercules - irq broadcast. Date: Fri, 24 Jul 2009 10:52:59 +0200 Message-ID: <4A69766B.7090209@ladisch.de> References: <4A68A52D.8050409@fisher-privat.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com [66.111.4.25]) by alsa0.perex.cz (Postfix) with ESMTP id AE9C6103A70 for ; Fri, 24 Jul 2009 10:52:45 +0200 (CEST) In-Reply-To: <4A68A52D.8050409@fisher-privat.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Alexey Fisher Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Alexey Fisher wrote: > i found some time to investigate the issue with my "Hercules USB 5.1 > Cannel Audio Adapter". The issue is pretty tricky and depend to host > hardware, in my situation this is Intel DG45ID board. > > Symptoms are: if i use this sound adapter after some time i'll get: > irq 16: nobody cared ... Disabling IRQ #16. The USB audio driver does not manage USB interrupts; this is probably a problem with the USB controller driver or, more likely, with the interrupt routing. HTH Clemens