diff --git a/platform/drivers/SPI/spi_custom.c b/platform/drivers/SPI/spi_custom.c
new file mode 100644
index 00000000..2e61c971
--- /dev/null
+++ b/platform/drivers/SPI/spi_custom.c
@@ -0,0 +1,57 @@
+/***************************************************************************
+ *   Copyright (C) 2024 by Federico Amedeo Izzo IU2NUO,                    *
+ *                         Niccolò Izzo IU2KIN                             *
+ *                         Frederik Saraci IU2NRO                          *
+ *                         Silvano Seva IU2KWO                             *
+ *                                                                         *
+ *   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 <http://www.gnu.org/licenses/>   *
+ ***************************************************************************/
+
+#include <errno.h>
+#include "spi_custom.h"
+
+int spiCustom_transfer(const struct spiDevice *dev, const void *txBuf,
+                       void *rxBuf, const size_t size)
+{
+    const struct spiCustomDevice *spiDev = (const struct spiCustomDevice *) dev;
+    const uint8_t *txData = (const uint8_t *) txBuf;
+    uint8_t       *rxData = (uint8_t *) rxBuf;
+
+    if(spiDev->spiFunc == NULL)
+        return -EIO;
+
+    // Send only
+    if(rxBuf == NULL)
+    {
+        for(size_t i = 0; i < size; i++)
+            spiDev->spiFunc(dev->priv, txData[i]);
+
+        return 0;
+    }
+
+    // Receive only
+    if(txBuf == NULL)
+    {
+        for(size_t i = 0; i < size; i++)
+            rxData[i] = spiDev->spiFunc(dev->priv, 0x00);
+
+        return 0;
+    }
+
+    // Transmit and receive, only symmetric transfer is supported
+    for(size_t i = 0; i < size; i++)
+        rxData[i] = spiDev->spiFunc(dev->priv, txData[i]);
+
+    return 0;
+}
diff --git a/platform/drivers/SPI/spi_custom.h b/platform/drivers/SPI/spi_custom.h
new file mode 100644
index 00000000..e101ce91
--- /dev/null
+++ b/platform/drivers/SPI/spi_custom.h
@@ -0,0 +1,89 @@
+/***************************************************************************
+ *   Copyright (C) 2024 by Federico Amedeo Izzo IU2NUO,                    *
+ *                         Niccolò Izzo IU2KIN                             *
+ *                         Frederik Saraci IU2NRO                          *
+ *                         Silvano Seva IU2KWO                             *
+ *                                                                         *
+ *   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 <http://www.gnu.org/licenses/>   *
+ ***************************************************************************/
+
+#ifndef SPI_CUSTOM_H
+#define SPI_CUSTOM_H
+
+#include <peripherals/spi.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * This module allows to create an SPI device with a custom implementation of
+ * the bus transfer function. An example usage is to create an SPI device using
+ * an high-performance bitbanging routine.
+ */
+
+/**
+ * Transfer single byte on the SPI bus.
+ *
+ * @param dev: SPI device handle.
+ * @param tx: byte to be sent.
+ * @return byte received from remote device.
+ */
+typedef uint8_t (*spi_func)(const void *priv, uint8_t tx);
+
+/**
+ * Implementation of the SPI transfer function.
+ *
+ * @param dev: SPI device handle.
+ * @param txBuf: pointer to TX buffer, can be NULL.
+ * @param rxBuf: pointer to RX buffer, can be NULL.
+ * @param size: number of bytes to transfer.
+ * @return zero on success, a negative error code otherwise.
+ */
+int spiCustom_transfer(const struct spiDevice *dev, const void *txBuf,
+                       void *rxBuf, const size_t size);
+
+/**
+ * Custom SPI device descriptor.
+ */
+struct spiCustomDevice
+{
+    spi_transfer_impl transfer; ///< Device-specific implementation of the SPI transfer function
+    const void        *priv;    ///< Pointer to device driver private data
+    pthread_mutex_t   *mutex;   ///< Pointer to mutex for exclusive access
+    spi_func          spiFunc;  ///< Pointer to driver configuration data.
+};
+
+/**
+ *  Instantiate a custom SPI device.
+ *
+ * @param name: device name.
+ * @param impl: user-provided implementation of the single byte transfer function.
+ * @param args: pointer to user-defined arguments.
+ * @param mutx: pointer to mutex, or NULL.
+ */
+#define SPI_CUSTOM_DEVICE_DEFINE(name, impl, args, mutx) \
+const struct spiCustomDevice name =                      \
+{                                                        \
+    .transfer = spiCustom_transfer,                      \
+    .priv     = args,                                    \
+    .mutex    = mutx,                                    \
+    .spiFunc  = impl                                     \
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SPI_CUSTOM_H */