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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 Subject: Re: [PATCH] usb: core: hub: Disable autosuspend for VIA VL813 USB3.0 hub Content-Language: en-US To: Jimmy Hu , stern@rowland.harvard.edu, gregkh@linuxfoundation.org Cc: badhri@google.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20230411083145.2214105-1-hhhuuu@google.com> From: Oliver Neukum In-Reply-To: <20230411083145.2214105-1-hhhuuu@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: FR2P281CA0096.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:9b::19) To VI1PR04MB7104.eurprd04.prod.outlook.com (2603:10a6:800:126::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI1PR04MB7104:EE_|DBAPR04MB7238:EE_ X-MS-Office365-Filtering-Correlation-Id: c9e7ba23-048c-4f7a-d140-08db3a6fde3f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VI1PR04MB7104.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(376002)(39850400004)(396003)(346002)(366004)(136003)(451199021)(36756003)(86362001)(31696002)(6486002)(41300700001)(316002)(66556008)(478600001)(4326008)(8676002)(66946007)(66476007)(5660300002)(2906002)(8936002)(4744005)(38100700002)(186003)(53546011)(6666004)(6506007)(6512007)(2616005)(83380400001)(31686004)(45980500001)(43740500002);DIR:OUT;SFP:1101; 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This can be reproduced by connecting a USB3 > device to the hub after the hub enters autosuspend mode. Hi, out of interest, could you test whether this also applies to disconnections? That is, does the hub reliably wake up if you unplug a device? Regards Oliver