From owner-freebsd-hackers@FreeBSD.ORG Fri Jun 22 14:24:24 2012 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id E16921065675 for ; Fri, 22 Jun 2012 14:24:24 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from bigwig.baldwin.cx (bigknife-pt.tunnel.tserv9.chi1.ipv6.he.net [IPv6:2001:470:1f10:75::2]) by mx1.freebsd.org (Postfix) with ESMTP id B69028FC17 for ; Fri, 22 Jun 2012 14:24:24 +0000 (UTC) Received: from jhbbsd.localnet (unknown [209.249.190.124]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id 15052B9B4; Fri, 22 Jun 2012 10:24:24 -0400 (EDT) From: John Baldwin To: Ruslan Bukin Date: Fri, 22 Jun 2012 10:23:46 -0400 User-Agent: KMail/1.13.5 (FreeBSD/8.2-CBSD-20110714-p13; KDE/4.5.5; amd64; ; ) References: <20120620204441.GA63638@jail.io> <201206210812.41137.jhb@freebsd.org> <20120622091146.GA5305@jail.io> In-Reply-To: <20120622091146.GA5305@jail.io> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <201206221023.46697.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (bigwig.baldwin.cx); Fri, 22 Jun 2012 10:24:24 -0400 (EDT) Cc: freebsd-hackers@freebsd.org Subject: Re: newbus / snd_hdspe(4) trouble X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jun 2012 14:24:25 -0000 On Friday, June 22, 2012 5:11:46 am Ruslan Bukin wrote: > On Thu, Jun 21, 2012 at 08:12:41AM -0400, John Baldwin wrote: > > On Wednesday, June 20, 2012 4:44:41 pm Ruslan Bukin wrote: > > > Hi. > > > > > > I have the problem with different behavior of snd_hdspe(4) sound card > > > driver initialization. > > > > > > If I load the driver by hand using kldload everything works fine, > > > but in case of loading driver at boot time (loader.conf) or compile > > > in kernel the driver can't initialize propertly. > > > > > > The snd_hdspe(4) driver is designed to create a pcm child device per > > > each pair of sound channels. > > > > > > The problem is that snd_hdspe loaded normally, but pcm child devices > > > are not appears. hdspe_pcm_probe() in driver is not called at all. > > > However snd_hdspe_pcm driver exists in kldstat -v after boot: > > > 5 1 0xffffffff81377000 a2c8 snd_hdspe.ko (/boot/kernel/snd_hdspe.ko) > > > Contains modules: > > > Id Name > > > 7 hdspe/snd_hdspe_pcm > > > 6 pci/snd_hdspe > > > > > > and I have checked, device_add_child() returns not NULL. > > > > > > I played with MODULE_DEPEND as done in snd_hda(4) but no luck. > > > What can I do to debug the problem? > > > > The snd_hdspe driver probably needs to use DRIVER_MODULE_ORDERED() to ensure > > the other modules in its kld are registered with new-bus before it tries to > > attach to devices. > > I have changed, but no success. > > hdspe.c: > DRIVER_MODULE_ORDERED(snd_hdspe, pci, hdspe_driver, pcm_devclass, 0, 0, SI_ORDER_SECOND); Try making this one use SI_ORDER_ANY. -- John Baldwin