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| author |   Dmitry Torokhov <dtor_core@ameritech.net> | 2005-05-29 02:29:25 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2005-05-29 02:29:25 -0500 |
| commit | 0fbf87caf70acec0c435233fbc39c7bd0aca3ca6 (patch) | |
| tree | 65fa9bdde1f04a1359c3599d351199f834eb01ec /include/linux/input.h | |
| parent | Input: maple_keyb - remove useless dc_kbd_open and dc_kbd_close (diff) | |
| download | linux-dev-0fbf87caf70acec0c435233fbc39c7bd0aca3ca6.tar.xz linux-dev-0fbf87caf70acec0c435233fbc39c7bd0aca3ca6.zip | |
Input: add semaphore and user count to input_dev structure;
serialize open and close calls and ensure that device's
open and close methods are only called when first user
opens it or last user closes it.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'include/linux/input.h')
| -rw-r--r-- | include/linux/input.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/input.h b/include/linux/input.h index 72731d7d189e..43e8ecec602b 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -859,6 +859,10 @@ struct input_dev { int (*erase_effect)(struct input_dev *dev, int effect_id); struct input_handle *grab; + + struct semaphore sem; /* serializes open and close operations */ + unsigned int users; + struct device *dev; struct list_head h_list; |