applications: nrf5340_audio: Nitpick fixes in SD card module

Found when looking through this module.
No changes to functionality.

Signed-off-by: Erik Robstad <erik.robstad@nordicsemi.no>

applications/nrf5340_audio/src/modules/sd_card.c

@@ -19,13 +19,15 @@
 LOG_MODULE_REGISTER(sd_card, CONFIG_MODULE_SD_CARD_LOG_LEVEL);
 
 #define SD_ROOT_PATH	      "/SD:/"
-#define PATH_MAX_LEN	      260 /* Maximum length for path support by Windows file system*/
+/* Maximum length for path support by Windows file system */
+#define PATH_MAX_LEN	      260
 #define K_SEM_OPER_TIMEOUT_MS 500
 
+K_SEM_DEFINE(m_sem_sd_oper_ongoing, 1, 1);
+
 static const char *sd_root_path = "/SD:";
 static FATFS fat_fs;
 static bool sd_init_success;
-K_SEM_DEFINE(m_sem_sd_oper_ongoing, 1, 1);
 
 static struct fs_mount_t mnt_pt = {
 	.type = FS_FATFS,
@@ -51,6 +53,7 @@ int sd_card_list_files(char const *const path, char *buf, size_t *buf_size)
 		k_sem_give(&m_sem_sd_oper_ongoing);
 		return -ENODEV;
 	}
+
 	fs_dir_t_init(&dirp);
 
 	if (path == NULL) {
@@ -87,6 +90,7 @@ int sd_card_list_files(char const *const path, char *buf, size_t *buf_size)
 		if (entry.name[0] == 0) {
 			break;
 		}
+
 		if (buf != NULL) {
 			size_t remaining_buf_size = *buf_size - used_buf_size;
 			ssize_t len = snprintk(
@@ -101,6 +105,7 @@ int sd_card_list_files(char const *const path, char *buf, size_t *buf_size)
 
 			used_buf_size += len;
 		}
+
 		LOG_INF("[%s] %s", entry.type == FS_DIR_ENTRY_DIR ? "DIR " : "FILE", entry.name);
 	}
 

applications/nrf5340_audio/src/modules/sd_card.h

@@ -10,7 +10,8 @@
 #include <stddef.h>
 #include <zephyr/fs/fs.h>
 
-/**@brief	Print out the contents under SD card root path and write the content to buffer.
+/**
+ * @brief	Print out the contents under SD card root path and write the content to buffer.
  *
  * @param[in]		path		Path of the folder which is going to be listed.
  *					If assigned path is null, then listing the contents under
@@ -29,7 +30,8 @@
  */
 int sd_card_list_files(char const *const path, char *buf, size_t *buf_size);
 
-/**@brief	Write data from buffer into the file.
+/**
+ * @brief	Write data from buffer into the file.
  *
  * @note	If the file already exists, data will be appended to the end of the file.
  *
@@ -47,7 +49,8 @@ int sd_card_list_files(char const *const path, char *buf, size_t *buf_size);
  */
 int sd_card_open_write_close(char const *const filename, char const *const data, size_t *size);
 
-/**@brief	Read data from file into the buffer.
+/**
+ * @brief	Read data from file into the buffer.
  *
  * @param[in]		filename	Name of the target file for reading, the default location is
  *					the root directoy of SD card, accept absolute path under
@@ -65,7 +68,8 @@ int sd_card_open_write_close(char const *const filename, char const *const data,
  */
 int sd_card_open_read_close(char const *const filename, char *const buf, size_t *size);
 
-/**@brief	Open file on SD card.
+/**
+ * @brief	Open file on SD card.
  *
  * @param[in]		filename		Name of file to open. Default
  *						location is the root directoy of SD card.
@@ -81,7 +85,8 @@ int sd_card_open_read_close(char const *const filename, char *const buf, size_t
  */
 int sd_card_open(char const *const filename, struct fs_file_t *f_seg_read_entry);
 
-/**@brief	Read segment on the open file on the SD card.
+/**
+ * @brief	Read segment on the open file on the SD card.
  *
  * @param[out]		buf			Pointer to the buffer to write the read data into.
  * @param[in, out]	size			Number of bytes to be read from file.
@@ -100,7 +105,8 @@ int sd_card_open(char const *const filename, struct fs_file_t *f_seg_read_entry)
  */
 int sd_card_read(char *buf, size_t *size, struct fs_file_t *f_seg_read_entry);
 
-/**@brief	Close the file opened by the sd_card_segment_read_open function.
+/**
+ * @brief	Close the file opened by the sd_card_segment_read_open function.
  *
  * @param[in, out]	f_seg_read_entry	Pointer to a file object. After call to this
  *						function, the pointer is reset and can be used for
@@ -114,7 +120,8 @@ int sd_card_read(char *buf, size_t *size, struct fs_file_t *f_seg_read_entry);
  */
 int sd_card_close(struct fs_file_t *f_seg_read_entry);
 
-/**@brief	Initialize the SD card interface and print out SD card details.
+/**
+ * @brief	Initialize the SD card interface and print out SD card details.
  *
  * @retval	0 on success.
  * @retval	-ENODEV SD init failed. SD card likely not inserted.