X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fdrv%2Fsd.h;h=22a19d1e7d09322be23dc605caf16d58085fbe11;hb=cf02bef1e97d5c7c7b62986a5d47120de46c05db;hp=368e0d4fff975d6d375257004ed01c1f2f3e4fca;hpb=dbc93a323bf913a9f5422b93ac59b828819a97db;p=bertos.git

diff --git a/bertos/drv/sd.h b/bertos/drv/sd.h
index 368e0d4f..22a19d1e 100644
--- a/bertos/drv/sd.h
+++ b/bertos/drv/sd.h
@@ -31,13 +31,11 @@
  *
  * \brief Function library for secure digital memory.
  *
- * Right now, the interface for these function is the one defined in diskio.h from
- * the FatFS module.
  *
  * \author Francesco Sacchi <batt@develer.com>
  *
  * $WIZ$ module_name = "sd"
- * $WIZ$ module_depends = "kfile", "timer"
+ * $WIZ$ module_depends = "kfile", "timer", "kblock"
  * $WIZ$ module_hw = "bertos/hw/hw_sd.h"
  * $WIZ$ module_configuration = "bertos/cfg/cfg_sd.h"
  */
@@ -53,12 +51,15 @@
 
 #include "cfg/cfg_sd.h"
 
-
+/**
+ * SD Card context structure.
+ */
 typedef struct Sd
 {
-	KBlock b;
+	KBlock b;   ///< KBlock base class
 	KFile *ch;  ///< SPI communication channel
-	uint16_t r1;
+	uint16_t r1;  ///< Last status data received from SD
+	uint16_t tranfer_len; ///< Lenght for the read/write commands, cached in order to increase speed.
 } Sd;
 
 bool sd_initUnbuf(Sd *sd, KFile *ch);
@@ -79,6 +80,8 @@ bool sd_initBuf(Sd *sd, KFile *ch);
 	 *
 	 * \note This API is deprecated, disable CONFIG_SD_OLD_INIT and
 	 *       use the new one instead.
+	 *
+	 * \see CONFIG_SD_OLD_INIT.
 	 */
 	#define sd_init(ch) {static struct Sd sd; sd_initUnbuf(&sd, (ch));}