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diff --git a/Marlin/src/sd/SdFile.cpp b/Marlin/src/sd/SdFile.cpp
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+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * 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 3 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, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * sd/SdFile.cpp
+ *
+ * Arduino SdFat Library
+ * Copyright (c) 2009 by William Greiman
+ *
+ * This file is part of the Arduino Sd2Card Library
+ */
+
+#include "../inc/MarlinConfig.h"
+
+#if ENABLED(SDSUPPORT)
+
+#include "SdFile.h"
+
+/**
+ *  Create a file object and open it in the current working directory.
+ *
+ * \param[in] path A path with a valid 8.3 DOS name for a file to be opened.
+ *
+ * \param[in] oflag Values for \a oflag are constructed by a bitwise-inclusive
+ * OR of open flags. see SdBaseFile::open(SdBaseFile*, const char*, uint8_t).
+ */
+SdFile::SdFile(const char* path, uint8_t oflag) : SdBaseFile(path, oflag) { }
+
+/**
+ * Write data to an open file.
+ *
+ * \note Data is moved to the cache but may not be written to the
+ * storage device until sync() is called.
+ *
+ * \param[in] buf Pointer to the location of the data to be written.
+ *
+ * \param[in] nbyte Number of bytes to write.
+ *
+ * \return For success write() returns the number of bytes written, always
+ * \a nbyte.  If an error occurs, write() returns -1.  Possible errors
+ * include write() is called before a file has been opened, write is called
+ * for a read-only file, device is full, a corrupt file system or an I/O error.
+ */
+int16_t SdFile::write(const void* buf, uint16_t nbyte) { return SdBaseFile::write(buf, nbyte); }
+
+/**
+ * Write a byte to a file. Required by the Arduino Print class.
+ * \param[in] b the byte to be written.
+ * Use writeError to check for errors.
+ */
+#if ARDUINO >= 100
+  size_t SdFile::write(uint8_t b) { return SdBaseFile::write(&b, 1); }
+#else
+  void SdFile::write(uint8_t b) { SdBaseFile::write(&b, 1); }
+#endif
+
+/**
+ * Write a string to a file. Used by the Arduino Print class.
+ * \param[in] str Pointer to the string.
+ * Use writeError to check for errors.
+ */
+void SdFile::write(const char* str) { SdBaseFile::write(str, strlen(str)); }
+
+/**
+ * Write a PROGMEM string to a file.
+ * \param[in] str Pointer to the PROGMEM string.
+ * Use writeError to check for errors.
+ */
+void SdFile::write_P(PGM_P str) {
+  for (uint8_t c; (c = pgm_read_byte(str)); str++) write(c);
+}
+
+/**
+ * Write a PROGMEM string followed by CR/LF to a file.
+ * \param[in] str Pointer to the PROGMEM string.
+ * Use writeError to check for errors.
+ */
+void SdFile::writeln_P(PGM_P str) {
+  write_P(str);
+  write_P(PSTR("\r\n"));
+}
+
+#endif // SDSUPPORT