#include <asm/ioctls.h>
-/*
+/**
* struct logger_log - represents a specific log, such as 'main' or 'radio'
+ * @buffer: The actual ring buffer
+ * @misc: The "misc" device representing the log
+ * @wq: The wait queue for @readers
+ * @readers: This log's readers
+ * @mutex: The mutex that protects the @buffer
+ * @w_off: The current write head offset
+ * @head: The head, or location that readers start reading at.
+ * @size: The size of the log
+ * @logs: The list of log channels
*
* This structure lives from module insertion until module removal, so it does
* not need additional reference counting. The structure is protected by the
* mutex 'mutex'.
*/
struct logger_log {
- unsigned char *buffer;/* the ring buffer itself */
- struct miscdevice misc; /* misc device representing the log */
- wait_queue_head_t wq; /* wait queue for readers */
- struct list_head readers; /* this log's readers */
- struct mutex mutex; /* mutex protecting buffer */
- size_t w_off; /* current write head offset */
- size_t head; /* new readers start here */
- size_t size; /* size of the log */
- struct list_head logs; /* list of log channels (myself)*/
+ unsigned char *buffer;
+ struct miscdevice misc;
+ wait_queue_head_t wq;
+ struct list_head readers;
+ struct mutex mutex;
+ size_t w_off;
+ size_t head;
+ size_t size;
+ struct list_head logs;
};
static LIST_HEAD(log_list);
-/*
+/**
* struct logger_reader - a logging device open for reading
+ * @log: The associated log
+ * @list: The associated entry in @logger_log's list
+ * @r_off: The current read head offset.
*
* This object lives from open to release, so we don't need additional
* reference counting. The structure is protected by log->mutex.
*/
struct logger_reader {
- struct logger_log *log; /* associated log */
- struct list_head list; /* entry in logger_log's list */
- size_t r_off; /* current read head offset */
+ struct logger_log *log;
+ struct list_head list;
+ size_t r_off;
};
/* logger_offset - returns index 'n' into the log via (optimized) modulus */