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-rw-r--r--include/linux/tty_driver.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index 0bd31f0830f9..58c961c9e170 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -241,8 +241,15 @@ void tty_set_operations(struct tty_driver *driver, struct tty_operations *op);
* is also a promise, if the above case is true, not to signal
* overruns, either.)
*
- * TTY_DRIVER_NO_DEVFS --- if set, do not create devfs entries. This
- * is only used by tty_register_driver().
+ * TTY_DRIVER_DYNAMIC_DEV --- if set, the individual tty devices need
+ * to be registered with a call to tty_register_driver() when the
+ * device is found in the system and unregistered with a call to
+ * tty_unregister_device() so the devices will be show up
+ * properly in sysfs. If not set, driver->num entries will be
+ * created by the tty core in sysfs when tty_register_driver() is
+ * called. This is to be used by drivers that have tty devices
+ * that can appear and disappear while the main tty driver is
+ * registered with the tty core.
*
* TTY_DRIVER_DEVPTS_MEM -- don't use the standard arrays, instead
* use dynamic memory keyed through the devpts filesystem. This
@@ -251,7 +258,7 @@ void tty_set_operations(struct tty_driver *driver, struct tty_operations *op);
#define TTY_DRIVER_INSTALLED 0x0001
#define TTY_DRIVER_RESET_TERMIOS 0x0002
#define TTY_DRIVER_REAL_RAW 0x0004
-#define TTY_DRIVER_NO_DEVFS 0x0008
+#define TTY_DRIVER_DYNAMIC_DEV 0x0008
#define TTY_DRIVER_DEVPTS_MEM 0x0010
/* tty driver types */