Merge remote-tracking branch 'v4l-dvb/master'

[karo-tx-linux.git] / include / media / lirc_dev.h

diff --git a/include/media/lirc_dev.h b/include/media/lirc_dev.h
index 05e7ad5d2c8b6650f3f69152c3b38252e2b8921d..0ab59a571fee834416883f8d84d685269424489a 100644 (file)
--- a/include/media/lirc_dev.h
+++ b/include/media/lirc_dev.h
@@ -118,6 +118,71 @@ static inline unsigned int lirc_buffer_write(struct lirc_buffer *buf,
        return ret;
 }
 
+/**
+ * struct lirc_driver - Defines the parameters on a LIRC driver
+ *
+ * @name:              this string will be used for logs
+ *
+ * @minor:             indicates minor device (/dev/lirc) number for
+ *                     registered driver if caller fills it with negative
+ *                     value, then the first free minor number will be used
+ *                     (if available).
+ *
+ * @code_length:       length of the remote control key code expressed in bits.
+ *
+ * @buffer_size:       Number of FIFO buffers with @chunk_size size. If zero,
+ *                     creates a buffer with BUFLEN size (16 bytes).
+ *
+ * @sample_rate:       if zero, the device will wait for an event with a new
+ *                     code to be parsed. Otherwise, specifies the sample
+ *                     rate for polling. Value should be between 0
+ *                     and HZ. If equal to HZ, it would mean one polling per
+ *                     second.
+ *
+ * @features:          lirc compatible hardware features, like LIRC_MODE_RAW,
+ *                     LIRC_CAN_*, as defined at include/media/lirc.h.
+ *
+ * @chunk_size:                Size of each FIFO buffer.
+ *
+ * @data:              it may point to any driver data and this pointer will
+ *                     be passed to all callback functions.
+ *
+ * @min_timeout:       Minimum timeout for record. Valid only if
+ *                     LIRC_CAN_SET_REC_TIMEOUT is defined.
+ *
+ * @max_timeout:       Maximum timeout for record. Valid only if
+ *                     LIRC_CAN_SET_REC_TIMEOUT is defined.
+ *
+ * @add_to_buf:                add_to_buf will be called after specified period of the
+ *                     time or triggered by the external event, this behavior
+ *                     depends on value of the sample_rate this function will
+ *                     be called in user context. This routine should return
+ *                     0 if data was added to the buffer and -ENODATA if none
+ *                     was available. This should add some number of bits
+ *                     evenly divisible by code_length to the buffer.
+ *
+ * @rbuf:              if not NULL, it will be used as a read buffer, you will
+ *                     have to write to the buffer by other means, like irq's
+ *                     (see also lirc_serial.c).
+ *
+ * @set_use_inc:       set_use_inc will be called after device is opened
+ *
+ * @set_use_dec:       set_use_dec will be called after device is closed
+ *
+ * @rdev:              Pointed to struct rc_dev associated with the LIRC
+ *                     device.
+ *
+ * @fops:              file_operations for drivers which don't fit the current
+ *                     driver model.
+ *                     Some ioctl's can be directly handled by lirc_dev if the
+ *                     driver's ioctl function is NULL or if it returns
+ *                     -ENOIOCTLCMD (see also lirc_serial.c).
+ *
+ * @dev:               pointer to the struct device associated with the LIRC
+ *                     device.
+ *
+ * @owner:             the module owning this struct
+ */
 struct lirc_driver {
        char name[40];
        int minor;
@@ -131,65 +196,16 @@ struct lirc_driver {
        void *data;
        int min_timeout;
        int max_timeout;
-       int (*add_to_buf) (void *data, struct lirc_buffer *buf);
+       int (*add_to_buf)(void *data, struct lirc_buffer *buf);
        struct lirc_buffer *rbuf;
-       int (*set_use_inc) (void *data);
-       void (*set_use_dec) (void *data);
+       int (*set_use_inc)(void *data);
+       void (*set_use_dec)(void *data);
        struct rc_dev *rdev;
        const struct file_operations *fops;
        struct device *dev;
        struct module *owner;
 };
 
-/* name:
- * this string will be used for logs
- *
- * minor:
- * indicates minor device (/dev/lirc) number for registered driver
- * if caller fills it with negative value, then the first free minor
- * number will be used (if available)
- *
- * code_length:
- * length of the remote control key code expressed in bits
- *
- * sample_rate:
- *
- * data:
- * it may point to any driver data and this pointer will be passed to
- * all callback functions
- *
- * add_to_buf:
- * add_to_buf will be called after specified period of the time or
- * triggered by the external event, this behavior depends on value of
- * the sample_rate this function will be called in user context. This
- * routine should return 0 if data was added to the buffer and
- * -ENODATA if none was available. This should add some number of bits
- * evenly divisible by code_length to the buffer
- *
- * rbuf:
- * if not NULL, it will be used as a read buffer, you will have to
- * write to the buffer by other means, like irq's (see also
- * lirc_serial.c).
- *
- * set_use_inc:
- * set_use_inc will be called after device is opened
- *
- * set_use_dec:
- * set_use_dec will be called after device is closed
- *
- * fops:
- * file_operations for drivers which don't fit the current driver model.
- *
- * Some ioctl's can be directly handled by lirc_dev if the driver's
- * ioctl function is NULL or if it returns -ENOIOCTLCMD (see also
- * lirc_serial.c).
- *
- * owner:
- * the module owning this struct
- *
- */
-
-
 /* following functions can be called ONLY from user context
  *
  * returns negative value on error or minor number