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Mon, 18 May 2020 08:19:28 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 9B91311358BC; Mon, 18 May 2020 10:19:26 +0200 (CEST) From: Markus Armbruster To: Gerd Hoffmann Subject: Re: Onboard audio devices and -audiodev none References: <87pnb5r82b.fsf@dusky.pond.sub.org> <20200515083456.vqf4zskk37ycu7te@sirius.home.kraxel.org> <87y2ppj0tm.fsf@dusky.pond.sub.org> <20200518071429.vz6tpf32bza3rqj3@sirius.home.kraxel.org> Date: Mon, 18 May 2020 10:19:26 +0200 In-Reply-To: <20200518071429.vz6tpf32bza3rqj3@sirius.home.kraxel.org> (Gerd Hoffmann's message of "Mon, 18 May 2020 09:14:29 +0200") Message-ID: <87r1vheju9.fsf@dusky.pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Received-SPF: pass client-ip=207.211.31.120; envelope-from=armbru@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/18 00:53:04 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Gerd Hoffmann writes: > On Mon, May 18, 2020 at 06:59:01AM +0200, Markus Armbruster wrote: >> Gerd Hoffmann writes: >> >> > On Fri, May 15, 2020 at 09:06:20AM +0200, Markus Armbruster wrote: >> >> Watch this: >> >> >> >> $ aarch64-softmmu/qemu-system-aarch64 -S -nodefaults -accel qtest -display none -M vexpress-a15 -audiodev none,id=foo >> >> audio: Device lm4549: audiodev default parameter is deprecated, please specify audiodev=foo >> >> >> >> I did, didn't I? >> > >> > https://patchwork.ozlabs.org/project/qemu-devel/patch/20200429110214.29037-13-kraxel@redhat.com/ >> >> I don't immediately understand how that addresses my issue, but I trust >> it does :) > > Well, not the patch itself, it handles pcspk only. But we could use the > same naming convention for all other onboard audio devices too: Have > them try lookup a "onboard" audio backend and use that if it exists. > Don't initialize if not. When an onboard device is an integral part of the physical board we're emulating, then it should be connected to a suitable null backend when we don't have a better default. > Not fully sure this is a good plan, thats why the patch is tagged 'RfC'. > Better idea are welcome. In the blockdev world floppy has a similar > problem, is there any way to link floppy and blockdev without -global > isa-fdc.driveA=... meanwhile? Yes, but it won't help with onboard sound: -device floppy just works now. The general problem of configuring onboard devices still needs a solution. This recent thread has some ideas: Subject: Configuring onboard devices (was: Failing property setters + hardwired devices + -global = a bad day) Date: Thu, 30 Apr 2020 12:03:12 +0200 (2 weeks, 3 days, 22 hours ago) Message-ID: <87tv11e1en.fsf_-_@dusky.pond.sub.org> https://lists.nongnu.org/archive/html/qemu-devel/2020-04/msg05468.html