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diff --git a/Marlin/src/sd/usb_flashdrive/lib-uhs2/usb_ch9.h b/Marlin/src/sd/usb_flashdrive/lib-uhs2/usb_ch9.h
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+/**
+ * Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Contact information
+ * -------------------
+ *
+ * Circuits At Home, LTD
+ * Web      :  https://www.circuitsathome.com
+ * e-mail   :  support@circuitsathome.com
+ */
+
+#ifndef _usb_h_
+  #error "Never include usb_ch9.h directly; include Usb.h instead"
+#endif
+
+/* USB chapter 9 structures */
+
+/* Misc.USB constants */
+#define DEV_DESCR_LEN   18      //device descriptor length
+#define CONF_DESCR_LEN  9       //configuration descriptor length
+#define INTR_DESCR_LEN  9       //interface descriptor length
+#define EP_DESCR_LEN    7       //endpoint descriptor length
+
+/* Standard Device Requests */
+
+#define USB_REQUEST_GET_STATUS                  0       // Standard Device Request - GET STATUS
+#define USB_REQUEST_CLEAR_FEATURE               1       // Standard Device Request - CLEAR FEATURE
+#define USB_REQUEST_SET_FEATURE                 3       // Standard Device Request - SET FEATURE
+#define USB_REQUEST_SET_ADDRESS                 5       // Standard Device Request - SET ADDRESS
+#define USB_REQUEST_GET_DESCRIPTOR              6       // Standard Device Request - GET DESCRIPTOR
+#define USB_REQUEST_SET_DESCRIPTOR              7       // Standard Device Request - SET DESCRIPTOR
+#define USB_REQUEST_GET_CONFIGURATION           8       // Standard Device Request - GET CONFIGURATION
+#define USB_REQUEST_SET_CONFIGURATION           9       // Standard Device Request - SET CONFIGURATION
+#define USB_REQUEST_GET_INTERFACE               10      // Standard Device Request - GET INTERFACE
+#define USB_REQUEST_SET_INTERFACE               11      // Standard Device Request - SET INTERFACE
+#define USB_REQUEST_SYNCH_FRAME                 12      // Standard Device Request - SYNCH FRAME
+
+#define USB_FEATURE_ENDPOINT_HALT               0       // CLEAR/SET FEATURE - Endpoint Halt
+#define USB_FEATURE_DEVICE_REMOTE_WAKEUP        1       // CLEAR/SET FEATURE - Device remote wake-up
+#define USB_FEATURE_TEST_MODE                   2       // CLEAR/SET FEATURE - Test mode
+
+/* Setup Data Constants */
+
+#define USB_SETUP_HOST_TO_DEVICE                0x00    // Device Request bmRequestType transfer direction - host to device transfer
+#define USB_SETUP_DEVICE_TO_HOST                0x80    // Device Request bmRequestType transfer direction - device to host transfer
+#define USB_SETUP_TYPE_STANDARD                 0x00    // Device Request bmRequestType type - standard
+#define USB_SETUP_TYPE_CLASS                    0x20    // Device Request bmRequestType type - class
+#define USB_SETUP_TYPE_VENDOR                   0x40    // Device Request bmRequestType type - vendor
+#define USB_SETUP_RECIPIENT_DEVICE              0x00    // Device Request bmRequestType recipient - device
+#define USB_SETUP_RECIPIENT_INTERFACE           0x01    // Device Request bmRequestType recipient - interface
+#define USB_SETUP_RECIPIENT_ENDPOINT            0x02    // Device Request bmRequestType recipient - endpoint
+#define USB_SETUP_RECIPIENT_OTHER               0x03    // Device Request bmRequestType recipient - other
+
+/* USB descriptors  */
+
+#define USB_DESCRIPTOR_DEVICE                   0x01    // bDescriptorType for a Device Descriptor.
+#define USB_DESCRIPTOR_CONFIGURATION            0x02    // bDescriptorType for a Configuration Descriptor.
+#define USB_DESCRIPTOR_STRING                   0x03    // bDescriptorType for a String Descriptor.
+#define USB_DESCRIPTOR_INTERFACE                0x04    // bDescriptorType for an Interface Descriptor.
+#define USB_DESCRIPTOR_ENDPOINT                 0x05    // bDescriptorType for an Endpoint Descriptor.
+#define USB_DESCRIPTOR_DEVICE_QUALIFIER         0x06    // bDescriptorType for a Device Qualifier.
+#define USB_DESCRIPTOR_OTHER_SPEED              0x07    // bDescriptorType for a Other Speed Configuration.
+#define USB_DESCRIPTOR_INTERFACE_POWER          0x08    // bDescriptorType for Interface Power.
+#define USB_DESCRIPTOR_OTG                      0x09    // bDescriptorType for an OTG Descriptor.
+
+#define HID_DESCRIPTOR_HID                      0x21
+
+
+/* OTG SET FEATURE Constants    */
+#define OTG_FEATURE_B_HNP_ENABLE                3       // SET FEATURE OTG - Enable B device to perform HNP
+#define OTG_FEATURE_A_HNP_SUPPORT               4       // SET FEATURE OTG - A device supports HNP
+#define OTG_FEATURE_A_ALT_HNP_SUPPORT           5       // SET FEATURE OTG - Another port on the A device supports HNP
+
+/* USB Endpoint Transfer Types  */
+#define USB_TRANSFER_TYPE_CONTROL               0x00    // Endpoint is a control endpoint.
+#define USB_TRANSFER_TYPE_ISOCHRONOUS           0x01    // Endpoint is an isochronous endpoint.
+#define USB_TRANSFER_TYPE_BULK                  0x02    // Endpoint is a bulk endpoint.
+#define USB_TRANSFER_TYPE_INTERRUPT             0x03    // Endpoint is an interrupt endpoint.
+#define bmUSB_TRANSFER_TYPE                     0x03    // bit mask to separate transfer type from ISO attributes
+
+
+/* Standard Feature Selectors for CLEAR_FEATURE Requests    */
+#define USB_FEATURE_ENDPOINT_STALL              0       // Endpoint recipient
+#define USB_FEATURE_DEVICE_REMOTE_WAKEUP        1       // Device recipient
+#define USB_FEATURE_TEST_MODE                   2       // Device recipient
+
+/* descriptor data structures */
+
+/* Device descriptor structure */
+typedef struct {
+        uint8_t bLength; // Length of this descriptor.
+        uint8_t bDescriptorType; // DEVICE descriptor type (USB_DESCRIPTOR_DEVICE).
+        uint16_t bcdUSB; // USB Spec Release Number (BCD).
+        uint8_t bDeviceClass; // Class code (assigned by the USB-IF). 0xFF-Vendor specific.
+        uint8_t bDeviceSubClass; // Subclass code (assigned by the USB-IF).
+        uint8_t bDeviceProtocol; // Protocol code (assigned by the USB-IF). 0xFF-Vendor specific.
+        uint8_t bMaxPacketSize0; // Maximum packet size for endpoint 0.
+        uint16_t idVendor; // Vendor ID (assigned by the USB-IF).
+        uint16_t idProduct; // Product ID (assigned by the manufacturer).
+        uint16_t bcdDevice; // Device release number (BCD).
+        uint8_t iManufacturer; // Index of String Descriptor describing the manufacturer.
+        uint8_t iProduct; // Index of String Descriptor describing the product.
+        uint8_t iSerialNumber; // Index of String Descriptor with the device's serial number.
+        uint8_t bNumConfigurations; // Number of possible configurations.
+} __attribute__((packed)) USB_FD_DEVICE_DESCRIPTOR;
+
+/* Configuration descriptor structure */
+typedef struct {
+        uint8_t bLength; // Length of this descriptor.
+        uint8_t bDescriptorType; // CONFIGURATION descriptor type (USB_DESCRIPTOR_CONFIGURATION).
+        uint16_t wTotalLength; // Total length of all descriptors for this configuration.
+        uint8_t bNumInterfaces; // Number of interfaces in this configuration.
+        uint8_t bConfigurationValue; // Value of this configuration (1 based).
+        uint8_t iConfiguration; // Index of String Descriptor describing the configuration.
+        uint8_t bmAttributes; // Configuration characteristics.
+        uint8_t bMaxPower; // Maximum power consumed by this configuration.
+} __attribute__((packed)) USB_FD_CONFIGURATION_DESCRIPTOR;
+
+/* Interface descriptor structure */
+typedef struct {
+        uint8_t bLength; // Length of this descriptor.
+        uint8_t bDescriptorType; // INTERFACE descriptor type (USB_DESCRIPTOR_INTERFACE).
+        uint8_t bInterfaceNumber; // Number of this interface (0 based).
+        uint8_t bAlternateSetting; // Value of this alternate interface setting.
+        uint8_t bNumEndpoints; // Number of endpoints in this interface.
+        uint8_t bInterfaceClass; // Class code (assigned by the USB-IF).  0xFF-Vendor specific.
+        uint8_t bInterfaceSubClass; // Subclass code (assigned by the USB-IF).
+        uint8_t bInterfaceProtocol; // Protocol code (assigned by the USB-IF).  0xFF-Vendor specific.
+        uint8_t iInterface; // Index of String Descriptor describing the interface.
+} __attribute__((packed)) USB_FD_INTERFACE_DESCRIPTOR;
+
+/* Endpoint descriptor structure */
+typedef struct {
+        uint8_t bLength; // Length of this descriptor.
+        uint8_t bDescriptorType; // ENDPOINT descriptor type (USB_DESCRIPTOR_ENDPOINT).
+        uint8_t bEndpointAddress; // Endpoint address. Bit 7 indicates direction (0=OUT, 1=IN).
+        uint8_t bmAttributes; // Endpoint transfer type.
+        uint16_t wMaxPacketSize; // Maximum packet size.
+        uint8_t bInterval; // Polling interval in frames.
+} __attribute__((packed)) USB_FD_ENDPOINT_DESCRIPTOR;
+
+/* HID descriptor */
+typedef struct {
+        uint8_t bLength;
+        uint8_t bDescriptorType;
+        uint16_t bcdHID; // HID class specification release
+        uint8_t bCountryCode;
+        uint8_t bNumDescriptors; // Number of additional class specific descriptors
+        uint8_t bDescrType; // Type of class descriptor
+        uint16_t wDescriptorLength; // Total size of the Report descriptor
+} __attribute__((packed)) USB_HID_DESCRIPTOR;
+
+typedef struct {
+        uint8_t bDescrType; // Type of class descriptor
+        uint16_t wDescriptorLength; // Total size of the Report descriptor
+} __attribute__((packed)) HID_CLASS_DESCRIPTOR_LEN_AND_TYPE;