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x-originating-ip: [119.31.174.67] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: a9a36551-7506-41c6-e92a-08d7e1283ff2 x-ms-traffictypediagnostic: AM7PR04MB6839: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:541; x-forefront-prvs: 0374433C81 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM7PR04MB7157.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(10009020)(7916004)(4636009)(396003)(366004)(39860400002)(136003)(376002)(346002)(5660300002)(8936002)(66556008)(6486002)(8676002)(81156014)(66946007)(2906002)(71200400001)(4744005)(6916009)(66446008)(64756008)(478600001)(6512007)(4326008)(1076003)(6506007)(76116006)(86362001)(9686003)(91956017)(44832011)(26005)(15650500001)(316002)(33656002)(186003)(33716001)(66476007);DIR:OUT;SFP:1101; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: CuBnedmViGvIFo/CTi7fL8PQh0dvxa8pwSMnXVE8wkYJxqxMK2iDF9WIntDRsdWgNLpe+x9CvebMrFAKGd+vcb1tGZ0TFoZodIggBGMOxTuyHpu12S/kqy251onbbgetE39EXNoE7na4ox4ZYZ8JuRQdlMWWVgO57zifMIV+odPIYGHFjQycs4a1Tb7mMB76b3YZZsTtgzghGhiJ56K0j8ZtOBZ6+1qI396wZsoqlv6TYIDhlcee4xp2rBUPNUsIEWcNzqzmYSuHz9SjF+jzZceN9J4oVTS6o0Eex6B6hOQnFJN2H0RNaNpw6/SGpdHl+wra/os2cw/I4sMdn4h+oPOfsqtGx5HAxRs1CkU6HOQye0NTqrG0p8WtfxeWfEME5vgWOj7hwy9UDo+w2G11C9sfJ31J0ldIwzqXLOfbdtR08cSSqG2TSSwN65d9E5fN x-ms-exchange-antispam-messagedata: DM9uwNP5AQT8TQ0H7XNn1WUAOrtagNtgrEPE2bDkKk7egjZSSZmIsTEBpoF19qvg4rMtjVjUXI1GTy/3gbJVVSvd4eMMkRHa5NHDz9ZuluE6FQASoKX2o0NaJ1ErVWDePt04lhSaWxnxjDNreUrF3g== x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: a9a36551-7506-41c6-e92a-08d7e1283ff2 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Apr 2020 10:32:08.2556 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: vYmzvjn+556VC1SOFoSHptscJA4LzFrTFFL7enr9J3h+DtYOrXofG2+Ir+1dIhscTqy5QQm0cC4W8Y12Op7MPg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM7PR04MB6839 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hi Alan, With commit e5d078af8e5f ("USB: hub: Don't record a connect-change event during reset-resume"), the disconnection event for the suspended device (eg, removable hub with no device connected, auto-suspended mouse) at roothub can't occur due to no hub->change_bits is set. Below is the debug message: imx_usb 30b20000.usb: at imx_controller_resume usbmisc_imx 30b20200.usbmisc: wakeup int ci_hdrc ci_hdrc.1: at ci_controller_resume usb usb1: usb wakeup-resume usb usb1: usb auto-resume ci_hdrc ci_hdrc.1: resume root hub hub 1-0:1.0: hub_resume ci_hdrc ci_hdrc.1: GetStatus port:1 status 1c00100a 14 e0 PEC CSC usb usb1-port1: status 0100 change 0003 hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000 hub 1-0:1.0: hub_suspend usb usb1: bus auto-suspend, wakeup 1 ci_hdrc ci_hdrc.1: suspend root hub ci_hdrc ci_hdrc.1: at ci_runtime_suspend imx_usb 30b20000.usb: at imx_controller_suspend --=20 Thanks, Peter Chen=