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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/input/input.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/input/input.c')
-rw-r--r--drivers/input/input.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 7080a9d4b84..dae49eba6cc 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -723,12 +723,13 @@ EXPORT_SYMBOL(input_set_keycode);
if (i != BITS_TO_LONGS(max)) \
continue;
-static const struct input_device_id *input_match_device(const struct input_device_id *id,
+static const struct input_device_id *input_match_device(struct input_handler *handler,
struct input_dev *dev)
{
+ const struct input_device_id *id;
int i;
- for (; id->flags || id->driver_info; id++) {
+ for (id = handler->id_table; id->flags || id->driver_info; id++) {
if (id->flags & INPUT_DEVICE_ID_MATCH_BUS)
if (id->bustype != dev->id.bustype)
@@ -756,7 +757,8 @@ static const struct input_device_id *input_match_device(const struct input_devic
MATCH_BIT(ffbit, FF_MAX);
MATCH_BIT(swbit, SW_MAX);
- return id;
+ if (!handler->match || handler->match(handler, dev))
+ return id;
}
return NULL;
@@ -767,10 +769,7 @@ static int input_attach_handler(struct input_dev *dev, struct input_handler *han
const struct input_device_id *id;
int error;
- if (handler->blacklist && input_match_device(handler->blacklist, dev))
- return -ENODEV;
-
- id = input_match_device(handler->id_table, dev);
+ id = input_match_device(handler, dev);
if (!id)
return -ENODEV;