From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 BC263350D75; Tue, 26 Aug 2025 14:42:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756219320; cv=none; b=kvccIa4/t9y7wIHlOkYiq2+iGZCnHduZBuKx5rQ4l8e9pTzvKJ04OF9pkQrKNDd8YuayxZpct77IfLFiO09khXUAXJ8lw8gAu/pZVkdV79Bagb0hBoEH7awXulUbh/v6ZW2fipNqIV9zugUMMqLTAUBiY7Gb7OlHWXEpTdXMBG4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756219320; c=relaxed/simple; bh=hpDYuBygdIJZjsNipRWlnFBXSvuCelLzJ1UsZreDKbs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FbBP+k+5iPqeqT6NmvTYWR4qDIdFbmyDMNzps1yn32hFxhVu/yRiwDZLVIRTyKoOGYPVjtX5kDbY/l01keCTEfQLfXeNpCqdddBVYVsYEYyLM6suujKFkaWDOdcloHQ6XD7VrQFS59PSC0pZ6AAgiZ5s4ZJDvCiySpvRCT4C7tU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JuOM8Qde; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="JuOM8Qde" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 24E84C4CEF1; Tue, 26 Aug 2025 14:41:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756219320; bh=hpDYuBygdIJZjsNipRWlnFBXSvuCelLzJ1UsZreDKbs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JuOM8QdeByOcH2ziSeLDrbZ0Yh6MoFSKNrtw53ONC3p16cHmiYij19iUW7zwzTz0M 4j8giotwVOjIwTXs1/5HbLgq1o0WBK3She68qkH9W+/cEuJ/nGpfjI6PIau9jNFLjC bovxDgiT2tfQpltdgYYbpSpkZNaIBxpIlRzGNlsY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mael GUERIN , stable , Alan Stern Subject: [PATCH 5.4 319/403] USB: storage: Add unusual-devs entry for Novatek NTK96550-based camera Date: Tue, 26 Aug 2025 13:10:45 +0200 Message-ID: <20250826110915.624294119@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110905.607690791@linuxfoundation.org> References: <20250826110905.607690791@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mael GUERIN commit 6ca8af3c8fb584f3424a827f554ff74f898c27cd upstream. Add the US_FL_BULK_IGNORE_TAG quirk for Novatek NTK96550-based camera to fix USB resets after sending SCSI vendor commands due to CBW and CSW tags difference, leading to undesired slowness while communicating with the device. Please find below the copy of /sys/kernel/debug/usb/devices with my device plugged in (listed as TechSys USB mass storage here, the underlying chipset being the Novatek NTK96550-based camera): T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0603 ProdID=8611 Rev= 0.01 S: Manufacturer=TechSys S: Product=USB Mass Storage S: SerialNumber=966110000000100 C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms Signed-off-by: Mael GUERIN Cc: stable Acked-by: Alan Stern Link: https://lore.kernel.org/r/20250806164406.43450-1-mael.guerin@murena.io Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -934,6 +934,13 @@ UNUSUAL_DEV( 0x05e3, 0x0723, 0x9451, 0x USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_SANE_SENSE ), +/* Added by Maël GUERIN */ +UNUSUAL_DEV( 0x0603, 0x8611, 0x0000, 0xffff, + "Novatek", + "NTK96550-based camera", + USB_SC_SCSI, USB_PR_BULK, NULL, + US_FL_BULK_IGNORE_TAG ), + /* * Reported by Hanno Boeck * Taken from the Lycoris Kernel