From 9439c6f1caffd938673018f3af7460b33a12528e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Sun, 20 Mar 2016 16:39:30 +0100
Subject: Another work progress

---
 include/spi.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'include/spi.h')

diff --git a/include/spi.h b/include/spi.h
index 8d51eb9..bdfce25 100644
--- a/include/spi.h
+++ b/include/spi.h
@@ -9,6 +9,11 @@
 #define _IOE_SPI_H_
 #ifdef CONFIG_SPI
 
+/*! \brief Modes definition for spi_init
+ *
+ * This enum is used by spi_init to define if SPI should be initialized as master
+ * or slave.
+ */
 enum spiMode {
     SPI_MODE_MASTER,
     SPI_MODE_SLAVE
@@ -17,6 +22,10 @@ enum spiMode {
 volatile extern int8_t _spi_busy;
 volatile extern Mutex spi_mutex;
 
+/*! \brief Initializes SPI interface.  
+ *
+ * \param mode Specify mode of SPI interface
+ */
 static inline void spi_init(enum spiMode mode) {
     _spi_busy = 0;
     if (mode == SPI_MODE_MASTER) {
@@ -59,7 +68,6 @@ static inline void spi_expose(uint8_t data) {
     SPDR = data;
 }
 
-// Null terminated array
 extern void (*spi_receive)(uint8_t data);
 
 #endif /* CONFIG_SPI */
-- 
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