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-rw-r--r--include/spi.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/spi.h b/include/spi.h
index 320e50e529..7887d0f9b8 100644
--- a/include/spi.h
+++ b/include/spi.h
@@ -176,6 +176,14 @@ void spi_cs_activate(struct spi_slave *slave);
void spi_cs_deactivate(struct spi_slave *slave);
/*-----------------------------------------------------------------------
+ * Set transfer speed.
+ * This sets a new speed to be applied for next spi_xfer().
+ * slave: The SPI slave
+ * hz: The transfer speed
+ */
+void spi_set_speed(struct spi_slave *slave, uint hz);
+
+/*-----------------------------------------------------------------------
* Write 8 bits, then read 8 bits.
* slave: The SPI slave we're communicating with
* byte: Byte to be written