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authorGabor Juhos <juhosg@openwrt.org>2010-12-06 17:14:47 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-12-06 17:15:15 -0800
commit0e7d0c860a0dee49dacb7bbb248d1eba637075ad (patch)
tree5b96db3517840fcb8b39c64dce3254124bf59739 /include
parentInput: turbografx - fix reference counting (diff)
downloadlinux-dev-0e7d0c860a0dee49dacb7bbb248d1eba637075ad.tar.xz
linux-dev-0e7d0c860a0dee49dacb7bbb248d1eba637075ad.zip
Input: add input driver for polled GPIO buttons
The existing gpio-keys driver can be usable only for GPIO lines with interrupt support. Several devices have buttons connected to a GPIO line which is not capable to generate interrupts. This patch adds a new input driver using the generic GPIO layer and the input-polldev to support such buttons. [Ben Gardiner <bengardiner@nanometrics.ca: fold code to use more of the original gpio_keys infrastructure; cleanups and other improvements.] Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> Tested-by: Ben Gardiner <bengardiner@nanometrics.ca> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'include')
-rw-r--r--include/linux/gpio_keys.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
index ce73a30113b4..dd1a56fbe924 100644
--- a/include/linux/gpio_keys.h
+++ b/include/linux/gpio_keys.h
@@ -16,6 +16,8 @@ struct gpio_keys_button {
struct gpio_keys_platform_data {
struct gpio_keys_button *buttons;
int nbuttons;
+ unsigned int poll_interval; /* polling interval in msecs -
+ for polling driver only */
unsigned int rep:1; /* enable input subsystem auto repeat */
int (*enable)(struct device *dev);
void (*disable)(struct device *dev);