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authorAlan Cox <alan@redhat.com>2008-10-13 10:42:00 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-13 09:51:42 -0700
commit99f1fe189daf8e99a847e420567e49dd7ee2aae7 (patch)
tree09db410aa2b32e74086593eb771c75efe553a585 /include/linux/tty_driver.h
parent23499705753ab8b4c6b0b64e6c424a370bd900a1 (diff)
tty: Clean up the tty_init_dev changes further
Fix up the naming, style and extract some bits of code into the driver specific code Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/tty_driver.h')
-rw-r--r--include/linux/tty_driver.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 2322313a858..2c5c35c4656 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -7,6 +7,14 @@
* defined; unless noted otherwise, they are optional, and can be
* filled in with a null pointer.
*
+ * struct tty_struct * (*lookup)(struct tty_driver *self, int idx)
+ *
+ * Return the tty device corresponding to idx, NULL if there is not
+ * one currently in use and an ERR_PTR value on error. Called under
+ * tty_mutex (for now!)
+ *
+ * Optional method. Default behaviour is to use the ttys array
+ *
* int (*open)(struct tty_struct * tty, struct file * filp);
*
* This routine is called when a particular tty device is opened.
@@ -203,6 +211,7 @@ struct tty_struct;
struct tty_driver;
struct tty_operations {
+ struct tty_struct * (*lookup)(struct tty_driver *driver, int idx);
int (*open)(struct tty_struct * tty, struct file * filp);
void (*close)(struct tty_struct * tty, struct file * filp);
void (*shutdown)(struct tty_struct *tty);