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| author | Frank Schaefer <fschaefer.oss@googlemail.com> | 2013-12-01 18:06:53 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-12-10 16:11:28 -0200 |
| commit | 7763481a97488f201e7b6a42ddce1d163cd6297a (patch) | |
| tree | fa3c54c3b84d418cd60959fbb951e54a3871a4ba /drivers/media/usb/em28xx/em28xx.h | |
| parent | f522260993822d82e2c480aa676aa4ca1230d235 (diff) | |
| download | linux-stable-7763481a97488f201e7b6a42ddce1d163cd6297a.tar.gz linux-stable-7763481a97488f201e7b6a42ddce1d163cd6297a.tar.bz2 linux-stable-7763481a97488f201e7b6a42ddce1d163cd6297a.zip | |
[media] em28xx: add debouncing mechanism for GPI-connected buttons
So far, the driver only supports a snapshot button which is assigned to
register 0x0c bit 5. This special port has a built-in debouncing mechanism.
For buttons connected to ordinary GPI ports, this patch implements a software
debouncing mechanism.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx.h')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index e185d00e9044..df828c68ef44 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -669,6 +669,7 @@ struct em28xx { /* Button state polling */ struct delayed_work buttons_query_work; u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; + u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; u8 num_button_polling_addresses; /* Snapshot button input device */ char snapshot_button_path[30]; /* path of the input dev */ |