Make the RPP layer thread safe

[pes-rpp/rpp-lib.git] / rpp / src / drv / spi.c

diff --git a/rpp/src/drv/spi.c b/rpp/src/drv/spi.c
index 1cb0ca5be44ff2e08aaa286967b6b612650d6e0c..ceca8ac50add34bc463870af64a150fb5ab88564 100644 (file)
--- a/rpp/src/drv/spi.c
+++ b/rpp/src/drv/spi.c
@@ -38,6 +38,9 @@ int spi_transfer_callback(struct spi_drv *ifc, int code, struct spi_msg_head *ms
        return 0;
 }
 
+/*
+ * This function is thread safe.
+ */
 int spi_transfer(spi_drv_t *ifc, int addr, int rq_len, const void *tx_buf, void *rx_buf)
 {
        spi_msg_head_t msg;