From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80F48CCA47C for ; Mon, 4 Jul 2022 12:12:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233561AbiGDMM4 (ORCPT ); Mon, 4 Jul 2022 08:12:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234140AbiGDMMo (ORCPT ); Mon, 4 Jul 2022 08:12:44 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 66E9511A09 for ; Mon, 4 Jul 2022 05:12:33 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 13586225ED; Mon, 4 Jul 2022 12:12:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1656936752; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ax8Is2DyCle/g94ag0zEkK1UqvD95AjNVHCt0WIOo34=; b=WEiQUkeyZbfpf3/0QfLDGV+mDx/uuNPtYJYi3oemCMPMdxEK+CNoz5Kk2hofJ/j/0nkalt k6C9C8LA5pSMiXkIgScIonmAhGkLyI6HLLmE+kAz8RDQBxKLDbXW8EV0JaF40n2+a005Du rxPrOcM3MG9//aob2cCq6GDlbXVunjc= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1656936752; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ax8Is2DyCle/g94ag0zEkK1UqvD95AjNVHCt0WIOo34=; b=HTB+NYqfZ1jvEBlgB6ui+7dOl6e9CyeAF9OHifs3t9MJYBCbySa+X/xfNxwDjOCqcnM59t VsJ+9qKao7aLuFBQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id D095E13451; Mon, 4 Jul 2022 12:12:31 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id TBEuMi/ZwmIHJQAAMHmgww (envelope-from ); Mon, 04 Jul 2022 12:12:31 +0000 Date: Mon, 04 Jul 2022 14:12:31 +0200 Message-ID: <875ykdyt3k.wl-tiwai@suse.de> From: Takashi Iwai To: Egor Vorontsov Cc: Jaroslav Kysela , Takashi Iwai , Jonas Hahnfeld , William Overton , Brendan Grieve , Alexander Tsoy , alsa-devel@alsa-project.org (moderated list:SOUND), linux-kernel@vger.kernel.org (open list) Subject: Re: [PATCH 1/2] ALSA: usb-audio: Add quirk for Fiero SC-01 In-Reply-To: <20220627100041.2861494-1-sdoregor@sdore.me> References: <20220627100041.2861494-1-sdoregor@sdore.me> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 27 Jun 2022 12:00:34 +0200, Egor Vorontsov wrote: > > Fiero SC-01 is a USB sound card with two mono inputs and a single > stereo output. The inputs are composed into a single stereo stream. > > The device uses a vendor-provided driver on Windows and does not work > at all without it. The driver mostly provides ASIO functionality, but > also alters the way the sound card is queried for sample rates and > clocks. > > ALSA queries those failing with an EPIPE (same as Windows 10 does). > Presumably, the vendor-provided driver does not query it at all, simply > matching by VID:PID. Thus, I consider this a buggy firmware and adhere > to a set of fixed endpoint quirks instead. > > The soundcard has an internal clock. Implicit feedback mode is required > for the playback. > > I have updated my device to v1.1.0 from a Windows 10 VM using a vendor- > provided binary prior to the development, hoping for it to just begin > working. The device provides no obvious way to downgrade the firmware, > and regardless, there's no binary available for v1.0.0 anyway. > > Thus, I will be getting another unit to extend the patch with support > for that. Expected to be a simple copy-paste of the existing one, > though. > > There were no previous reports of that device in context of Linux > anywhere. Other issues have been reported though, but that's out of the > scope. > > Signed-off-by: Egor Vorontsov Thanks, now applied both patches. Takashi