1 files changed, 10 insertions, 0 deletions
diff --git a/mpm/include/mpm/spi/spi_iface.hpp b/mpm/include/mpm/spi/spi_iface.hpp
index d3f387ff3..1fc5f828c 100644
--- a/mpm/include/mpm/spi/spi_iface.hpp
+++ b/mpm/include/mpm/spi/spi_iface.hpp
@@ -39,6 +39,16 @@ namespace mpm { namespace spi {
             const uint32_t data
         ) = 0;
 
+        /*! Convenience function: SPI xfer is 24 bits write, 16 bits read.
+         *
+         * \param data The write data for this xfer
+         *
+         * \return 16 bits worth of the return xfer
+         */
+        virtual uint32_t transfer24_16(
+            const uint32_t data
+        ) = 0;
+
         /*!
          * \param device The path to the spidev used (e.g. "/dev/spidev0.0")
          * \param speed_hz Transaction speed in Hz