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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2010-02-02 21:08:26 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-02-04 00:25:19 -0800
commit0b7024ac4df5821347141c18e680b7166bc1cb20 (patch)
tree7a61e55e66bdd39351b3ec39ecef367588b47170 /drivers/char/keyboard.c
parent1e87a43080a259a0e9739377708ece163b08de8d (diff)
Input: add match() method to input hanlders
Get rid of blacklist in input handler structure and instead allow handlers to define their own match() method to perform fine-grained filtering of supported devices. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/char/keyboard.c')
-rw-r--r--drivers/char/keyboard.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index cbf64b985ef..ada25bb8941 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -1323,6 +1323,21 @@ static void kbd_event(struct input_handle *handle, unsigned int event_type,
schedule_console_callback();
}
+static bool kbd_match(struct input_handler *handler, struct input_dev *dev)
+{
+ int i;
+
+ if (test_bit(EV_SND, dev->evbit))
+ return true;
+
+ if (test_bit(EV_KEY, dev->evbit))
+ for (i = KEY_RESERVED; i < BTN_MISC; i++)
+ if (test_bit(i, dev->keybit))
+ return true;
+
+ return false;
+}
+
/*
* When a keyboard (or other input device) is found, the kbd_connect
* function is called. The function then looks at the device, and if it
@@ -1334,14 +1349,6 @@ static int kbd_connect(struct input_handler *handler, struct input_dev *dev,
{
struct input_handle *handle;
int error;
- int i;
-
- for (i = KEY_RESERVED; i < BTN_MISC; i++)
- if (test_bit(i, dev->keybit))
- break;
-
- if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit))
- return -ENODEV;
handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
if (!handle)
@@ -1407,6 +1414,7 @@ MODULE_DEVICE_TABLE(input, kbd_ids);
static struct input_handler kbd_handler = {
.event = kbd_event,
+ .match = kbd_match,
.connect = kbd_connect,
.disconnect = kbd_disconnect,
.start = kbd_start,