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Diffstat (limited to 'include/linux/tty_ldisc.h')
-rw-r--r--include/linux/tty_ldisc.h132
1 files changed, 66 insertions, 66 deletions
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 455a0d7bf220..58390c73df8b 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -9,89 +9,89 @@
*
* int (*open)(struct tty_struct *);
*
- * This function is called when the line discipline is associated
- * with the tty. The line discipline can use this as an
- * opportunity to initialize any state needed by the ldisc routines.
- *
+ * This function is called when the line discipline is associated
+ * with the tty. The line discipline can use this as an
+ * opportunity to initialize any state needed by the ldisc routines.
+ *
* void (*close)(struct tty_struct *);
*
* This function is called when the line discipline is being
- * shutdown, either because the tty is being closed or because
- * the tty is being changed to use a new line discipline
- *
+ * shutdown, either because the tty is being closed or because
+ * the tty is being changed to use a new line discipline
+ *
* void (*flush_buffer)(struct tty_struct *tty);
*
- * This function instructs the line discipline to clear its
- * buffers of any input characters it may have queued to be
- * delivered to the user mode process.
- *
+ * This function instructs the line discipline to clear its
+ * buffers of any input characters it may have queued to be
+ * delivered to the user mode process.
+ *
* ssize_t (*chars_in_buffer)(struct tty_struct *tty);
*
- * This function returns the number of input characters the line
+ * This function returns the number of input characters the line
* discipline may have queued up to be delivered to the user mode
* process.
- *
+ *
* ssize_t (*read)(struct tty_struct * tty, struct file * file,
* unsigned char * buf, size_t nr);
*
- * This function is called when the user requests to read from
- * the tty. The line discipline will return whatever characters
- * it has buffered up for the user. If this function is not
- * defined, the user will receive an EIO error.
- *
+ * This function is called when the user requests to read from
+ * the tty. The line discipline will return whatever characters
+ * it has buffered up for the user. If this function is not
+ * defined, the user will receive an EIO error.
+ *
* ssize_t (*write)(struct tty_struct * tty, struct file * file,
- * const unsigned char * buf, size_t nr);
- *
- * This function is called when the user requests to write to the
- * tty. The line discipline will deliver the characters to the
- * low-level tty device for transmission, optionally performing
- * some processing on the characters first. If this function is
- * not defined, the user will receive an EIO error.
- *
+ * const unsigned char * buf, size_t nr);
+ *
+ * This function is called when the user requests to write to the
+ * tty. The line discipline will deliver the characters to the
+ * low-level tty device for transmission, optionally performing
+ * some processing on the characters first. If this function is
+ * not defined, the user will receive an EIO error.
+ *
* int (*ioctl)(struct tty_struct * tty, struct file * file,
- * unsigned int cmd, unsigned long arg);
+ * unsigned int cmd, unsigned long arg);
*
* This function is called when the user requests an ioctl which
- * is not handled by the tty layer or the low-level tty driver.
- * It is intended for ioctls which affect line discpline
- * operation. Note that the search order for ioctls is (1) tty
- * layer, (2) tty low-level driver, (3) line discpline. So a
- * low-level driver can "grab" an ioctl request before the line
- * discpline has a chance to see it.
- *
+ * is not handled by the tty layer or the low-level tty driver.
+ * It is intended for ioctls which affect line discpline
+ * operation. Note that the search order for ioctls is (1) tty
+ * layer, (2) tty low-level driver, (3) line discpline. So a
+ * low-level driver can "grab" an ioctl request before the line
+ * discpline has a chance to see it.
+ *
* long (*compat_ioctl)(struct tty_struct * tty, struct file * file,
- * unsigned int cmd, unsigned long arg);
+ * unsigned int cmd, unsigned long arg);
*
- * Process ioctl calls from 32-bit process on 64-bit system
+ * Process ioctl calls from 32-bit process on 64-bit system
*
* void (*set_termios)(struct tty_struct *tty, struct ktermios * old);
*
- * This function notifies the line discpline that a change has
- * been made to the termios structure.
- *
+ * This function notifies the line discpline that a change has
+ * been made to the termios structure.
+ *
* int (*poll)(struct tty_struct * tty, struct file * file,
- * poll_table *wait);
+ * poll_table *wait);
*
- * This function is called when a user attempts to select/poll on a
- * tty device. It is solely the responsibility of the line
- * discipline to handle poll requests.
+ * This function is called when a user attempts to select/poll on a
+ * tty device. It is solely the responsibility of the line
+ * discipline to handle poll requests.
*
* void (*receive_buf)(struct tty_struct *, const unsigned char *cp,
- * char *fp, int count);
- *
- * This function is called by the low-level tty driver to send
- * characters received by the hardware to the line discpline for
- * processing. <cp> is a pointer to the buffer of input
- * character received by the device. <fp> is a pointer to a
- * pointer of flag bytes which indicate whether a character was
- * received with a parity error, etc.
- *
+ * char *fp, int count);
+ *
+ * This function is called by the low-level tty driver to send
+ * characters received by the hardware to the line discpline for
+ * processing. <cp> is a pointer to the buffer of input
+ * character received by the device. <fp> is a pointer to a
+ * pointer of flag bytes which indicate whether a character was
+ * received with a parity error, etc.
+ *
* void (*write_wakeup)(struct tty_struct *);
*
- * This function is called by the low-level tty driver to signal
- * that line discpline should try to send more characters to the
- * low-level driver for transmission. If the line discpline does
- * not have any more data to send, it can just return.
+ * This function is called by the low-level tty driver to signal
+ * that line discpline should try to send more characters to the
+ * low-level driver for transmission. If the line discpline does
+ * not have any more data to send, it can just return.
*
* int (*hangup)(struct tty_struct *)
*
@@ -115,7 +115,7 @@ struct tty_ldisc_ops {
char *name;
int num;
int flags;
-
+
/*
* The following routines are called from above.
*/
@@ -123,19 +123,19 @@ struct tty_ldisc_ops {
void (*close)(struct tty_struct *);
void (*flush_buffer)(struct tty_struct *tty);
ssize_t (*chars_in_buffer)(struct tty_struct *tty);
- ssize_t (*read)(struct tty_struct * tty, struct file * file,
- unsigned char __user * buf, size_t nr);
- ssize_t (*write)(struct tty_struct * tty, struct file * file,
- const unsigned char * buf, size_t nr);
- int (*ioctl)(struct tty_struct * tty, struct file * file,
+ ssize_t (*read)(struct tty_struct *tty, struct file *file,
+ unsigned char __user *buf, size_t nr);
+ ssize_t (*write)(struct tty_struct *tty, struct file *file,
+ const unsigned char *buf, size_t nr);
+ int (*ioctl)(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
- long (*compat_ioctl)(struct tty_struct * tty, struct file * file,
+ long (*compat_ioctl)(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
- void (*set_termios)(struct tty_struct *tty, struct ktermios * old);
+ void (*set_termios)(struct tty_struct *tty, struct ktermios *old);
unsigned int (*poll)(struct tty_struct *, struct file *,
struct poll_table_struct *);
int (*hangup)(struct tty_struct *tty);
-
+
/*
* The following routines are called from below.
*/
@@ -145,7 +145,7 @@ struct tty_ldisc_ops {
void (*dcd_change)(struct tty_struct *, unsigned int);
struct module *owner;
-
+
int refcount;
};