1 // /** @file 2 // The EhciDxe driver is responsible for managing the behavior of EHCI controller. 3 // 4 // It implements the interfaces of monitoring the status of all ports and transferring 5 // Control, Bulk, Interrupt and Isochronous requests to Usb2.0 device. 6 // 7 // Note that EhciDxe driver is enhanced to guarantee that the EHCI controller get attached 8 // to the EHCI controller before the UHCI driver attaches to the companion UHCI controller. 9 // This way avoids the control transfer on a shared port between EHCI and companion host 10 // controller when UHCI gets attached earlier than EHCI and a USB 2.0 device inserts. 11 // 12 // Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> 13 // 14 // This program and the accompanying materials 15 // are licensed and made available under the terms and conditions of the BSD License 16 // which accompanies this distribution. The full text of the license may be found at 17 // http://opensource.org/licenses/bsd-license.php 18 // 19 // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 20 // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 21 // 22 // **/ 23 24 25 #string STR_MODULE_ABSTRACT #language en-US "Responsible for managing the behavior of EHCI controller" 26 27 #string STR_MODULE_DESCRIPTION #language en-US "Implements the interfaces for monitoring the status of all ports and transferring\n" 28 "Control, Bulk, Interrupt and Isochronous requests to Usb2.0 device.<BR><BR>\n" 29 "Note that EhciDxe driver is enhanced to guarantee that the EHCI controller get attached to the EHCI controller before the UHCI driver attaches to the companion UHCI controller. This method avoids the control transfer on a shared port between EHCI and a companion host controller when UHCI attaches earlier than EHCI and a USB 2.0 device inserts.<BR>" 30 31
