From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m.b4.vu (m.b4.vu [203.16.231.148]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB99C1B4224 for ; Mon, 22 Jun 2026 17:35:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.16.231.148 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782149721; cv=none; b=Ox6629iyzgyHW0wz46gVQbBefTHpySS7MZlFdkX5TqauwuIdrpZM5WE9FMZiAkhOTkxVvqIv/VaJwS3gN4aULJNcUo+3vVSKL01EH0yKwc3j8SngijCsq0YLsvt+YPQd+eEJTTB4XlMr//v3IktY1WyQJEIYhDLKpC47e+ou4xc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782149721; c=relaxed/simple; bh=wJhONnd1gthRh1vSV2WrodydiEmu0lO5DNHg5YLGXBg=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=h7lhITe/4RDl7GfBZUXNUFH1OofXyA6whVJTCF7l7OfpDt9mm80Zm36Tz7dhGVdp4FKVDsUzai/JelHjZMdI+0zwMjicE3Of2rUqDUU2MG33UR4wyi4i73dBNs8fFCIe/aYceom7QUpASeIFiT00jKYktSBBEeQOU3fixps6Wn8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=b4.vu; spf=pass smtp.mailfrom=b4.vu; dkim=pass (2048-bit key) header.d=b4.vu header.i=@b4.vu header.b=LoiYc5dd; arc=none smtp.client-ip=203.16.231.148 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=b4.vu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=b4.vu Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=b4.vu header.i=@b4.vu header.b="LoiYc5dd" Received: by m.b4.vu (Postfix, from userid 1000) id 32362604B9C3; Tue, 23 Jun 2026 02:59:04 +0930 (ACST) DKIM-Filter: OpenDKIM Filter v2.11.0 m.b4.vu 32362604B9C3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=b4.vu; s=m1; t=1782149344; bh=F19CF410ItpmxbQ6kWMCNPznDOKbf7aO1/s6LdTVfUQ=; h=Date:From:To:Cc:Subject:From; b=LoiYc5ddKe1MzoHBRQfjZmLnOnLRuPdsP6wlvaPLL4c6eX5kGe/mLs7vhSErPb9lF rzMR/87XVKD3FXD/fJkgSkeUjIQMTbyYL44Cg67cN8qqGxj+P67MeGeSrMNHIBq/j9 +/6zMsUtJfcHlscqQx4QKkhNYs4HHGNLloeGUfoX92iwUoIPhgTJPVp/0BO3kVTq8l 1ShK7wTDLIy4J5ypxhQ47j+E2gU7NpO4NxeQMLKB/r28nUlTQjmT3V9f/4ME8B/6o7 mefn6NtBeABlgiHEmo+L+gBQM4BD4S/RVqD6N+xxdCQsvidWbYTPlBziIRSkF4e/s2 6RNYwM7rcBDgg== Date: Tue, 23 Jun 2026 02:59:04 +0930 From: "Geoffrey D. Bennett" To: Takashi Iwai Cc: Takashi Iwai , linux-sound@vger.kernel.org Subject: [PATCH] ALSA: FCP: Add Focusrite ISA C8X support Message-ID: Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Add USB PID 0x821e to the list of devices handled by the Focusrite Control Protocol (FCP) driver. Cc: stable@vger.kernel.org Signed-off-by: Geoffrey D. Bennett --- Trivial new-device enablement: the ISA C8X uses the same FCP control interface as the Scarlett 16i16/18i16/18i20 4th Gen, so only the USB PID needs adding. Device attach and device-map retrieval confirmed on a pre-production unit. sound/usb/mixer_quirks.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index ec65e8a71919..c89087321173 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -4449,6 +4449,7 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) case USB_ID(0x1235, 0x821b): /* Focusrite Scarlett 16i16 4th Gen */ case USB_ID(0x1235, 0x821c): /* Focusrite Scarlett 18i16 4th Gen */ case USB_ID(0x1235, 0x821d): /* Focusrite Scarlett 18i20 4th Gen */ + case USB_ID(0x1235, 0x821e): /* Focusrite ISA C8X */ err = snd_fcp_init(mixer); break; -- 2.54.0