From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 49AA73FB7D5 for ; Fri, 24 Jul 2026 09:10:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784884250; cv=none; b=bdsprdYqe3gMktw0lx9QQ7Z25RolcqNcGuvYFZFdt2VfB76dYvKYTwe/s3kLP6qTPrgjyh0mHKs4sSBvj1rePOPRc52t04Vk3FRX7lZxu5V+8DmgqE4McLQrR3P9v/I8W3htlUk/Uye5piyW4FCyvbIUq0VRidi+5LZck87SAMs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784884250; c=relaxed/simple; bh=SnoaoNBdaaLMkTXD3nqQqd9hmZoPoHIyqwrQJo4XM2A=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=k4Bj3qoezpZHexvhzlYsbl1IoxwEt0TBIajAJ7gVwE+CUpb8fp4JjocYUQcEgWpZ7PJNAYr8hAWbCtkDkcaXbRLbZFjDSeV2E1XTYMJZg1bmUH3fKQ+igPfb9PkCp4JAsBS2Fl/PqEFrUzePY7YZYposVdkAtOLOBeXbYyoe1Qk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=ifzIBGw8; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=WSu6+829; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=ifzIBGw8; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=WSu6+829; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="ifzIBGw8"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="WSu6+829"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="ifzIBGw8"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="WSu6+829" Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 085FC7B68D; Fri, 24 Jul 2026 09:10:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1784884244; 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=ZBf4Gsu2q/t3BGIbMC2XUMh4mL7NMAlksrWTttgdG7g=; b=ifzIBGw8KAe3GIhlI+Nya8mDep9Ww5C7sYtBSKAM/hLO4GACJW8anjSNnjKi/aZusON+tS 6v8UEb9k+qYkkw//Hr4zfhlKjDO0WZwSHn/DfGz7fohtXI+v6XRwK8QtShyEWLbk7Oli5M HzVwuu0e+yf8hal+A+suJBjWWYVX49Y= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1784884244; 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=ZBf4Gsu2q/t3BGIbMC2XUMh4mL7NMAlksrWTttgdG7g=; b=WSu6+829BeGq880PW98s7xIBOO7DIIgWs8mQTzm+UxNSJQwSBTfbxr3qL6eA6C8UtqSEa2 x+27MscbSS+GqFCQ== Authentication-Results: smtp-out1.suse.de; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1784884244; 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=ZBf4Gsu2q/t3BGIbMC2XUMh4mL7NMAlksrWTttgdG7g=; b=ifzIBGw8KAe3GIhlI+Nya8mDep9Ww5C7sYtBSKAM/hLO4GACJW8anjSNnjKi/aZusON+tS 6v8UEb9k+qYkkw//Hr4zfhlKjDO0WZwSHn/DfGz7fohtXI+v6XRwK8QtShyEWLbk7Oli5M HzVwuu0e+yf8hal+A+suJBjWWYVX49Y= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1784884244; 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=ZBf4Gsu2q/t3BGIbMC2XUMh4mL7NMAlksrWTttgdG7g=; b=WSu6+829BeGq880PW98s7xIBOO7DIIgWs8mQTzm+UxNSJQwSBTfbxr3qL6eA6C8UtqSEa2 x+27MscbSS+GqFCQ== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id D39FB779BA; Fri, 24 Jul 2026 09:10:43 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id A7tkMhMsY2qxJQAAD6G6ig (envelope-from ); Fri, 24 Jul 2026 09:10:43 +0000 Date: Fri, 24 Jul 2026 11:10:43 +0200 Message-ID: <8733x8eorw.wl-tiwai@suse.de> From: Takashi Iwai To: Markus Lindner Cc: perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ALSA: usb-audio: Add dB map quirk for Razer Barracuda X 2.4 In-Reply-To: References: User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/30.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Spam-Score: -3.30 X-Spam-Level: X-Spam-Flag: NO X-Spamd-Result: default: False [-3.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.992]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; ARC_NA(0.00)[]; FREEMAIL_TO(0.00)[outlook.at]; FUZZY_RATELIMITED(0.00)[rspamd.com]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FREEMAIL_ENVRCPT(0.00)[outlook.at]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_FIVE(0.00)[5]; FROM_EQ_ENVFROM(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid] On Wed, 22 Jul 2026 03:09:18 +0200, Markus Lindner wrote: > > The Razer Barracuda X 2.4 GHz USB headset dongle (0x1532:0x0552) > reports a minimum volume register value of cval->min = -16800. > > In UAC 1/256 dB units, -16800 corresponds to -65.625 dB. However, > stock ALSA misinterprets this raw integer as 1/100 dB units > (-168.00 dB), causing user-space audio servers (PipeWire / > PulseAudio) to map their volume curves against an incorrectly wide > range. > > Add an explicit usbmix_dB_map entry overriding Unit 2 to -6562 > (-65.62 dB) to accurately report the physical hardware > attenuation bounds. > > Signed-off-by: Markus Lindner Applied now. But at the next time, please submit to linux-sound@vger.kernel.org instead of alsa-devel ML. alsa-devel ML is only for user-space stuff for now. thanks, Takashi