Add USB_FLASH_DRIVE_SUPPORT to examples

Co-Authored-By: marcio-ao <marcio@alephobjects.com>

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Anet/A2/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Anet/A2plus/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Anet/A6/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Anet/A8/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BIBO/TouchX/default/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BQ/Hephestos/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BQ/Hephestos_2/Configuration_adv.h

@@ -691,6 +691,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BQ/WITBOX/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Cartesio/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/CR-10/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/CR-10S/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/CR-10mini/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/CR-8/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/Ender-2/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/Ender-3/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/Ender-4/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Einstart-S/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Felix/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Formbot/Raptor/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   #define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Formbot/T_Rex_2+/Configuration_adv.h

@@ -687,6 +687,24 @@
    */
   #define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Formbot/T_Rex_3/Configuration_adv.h

@@ -688,6 +688,24 @@
    */
   #define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Infitary/i3-M508/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/JGAurora/A5/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/MakerParts/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Malyan/M150/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Malyan/M200/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Mks/Sbase/Configuration_adv.h

@@ -684,6 +684,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/RigidBot/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/SCARA/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Sanguinololu/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/TheBorg/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/TinyBoy2/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Tronxy/X3A/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/UltiMachine/Archim2/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Velleman/K8200/Configuration_adv.h

@@ -696,6 +696,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Velleman/K8400/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Wanhao/Duplicator 6/Configuration_adv.h

@@ -685,6 +685,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/Anycubic/Kossel/Configuration_adv.h

@@ -685,6 +685,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h

@@ -685,6 +685,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/FLSUN/kossel/Configuration_adv.h

@@ -685,6 +685,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h

@@ -685,6 +685,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/generic/Configuration_adv.h

@@ -685,6 +685,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/kossel_mini/Configuration_adv.h

@@ -685,6 +685,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/kossel_xl/Configuration_adv.h

@@ -685,6 +685,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/makibox/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/tvrrug/Round2/Configuration_adv.h

@@ -683,6 +683,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/wt150/Configuration_adv.h

@@ -684,6 +684,24 @@
    */
   //#define AUTO_REPORT_SD_STATUS
 
+  /**
+   * Support for USB thumb drives using an Arduino USB Host Shield or
+   * equivalent MAX3421E breakout board. The USB thumb drive will appear
+   * to Marlin as an SD card.
+   *
+   * The MAX3421E must be assigned the same pins as the SD card reader, with
+   * the following pin mapping:
+   *
+   *    SCLK, MOSI, MISO --> SCLK, MOSI, MISO
+   *    INT              --> SD_DETECT_PIN
+   *    SS               --> SDSS
+   */
+  //#define USB_FLASH_DRIVE_SUPPORT
+  #if ENABLED(USB_FLASH_DRIVE_SUPPORT)
+    #define USB_CS_PIN         SDSS
+    #define USB_INTR_PIN       SD_DETECT_PIN
+  #endif
+
 #endif // SDSUPPORT
 
 /**