diff options
Diffstat (limited to 'include/linux/input/touchscreen/ts_filter_group.h')
| -rw-r--r-- | include/linux/input/touchscreen/ts_filter_group.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/include/linux/input/touchscreen/ts_filter_group.h b/include/linux/input/touchscreen/ts_filter_group.h new file mode 100644 index 00000000000..2d727f30086 --- /dev/null +++ b/include/linux/input/touchscreen/ts_filter_group.h @@ -0,0 +1,36 @@ +#ifndef __TS_FILTER_GROUP_H__ +#define __TS_FILTER_GROUP_H__ + +#include <linux/input/touchscreen/ts_filter.h> + +/* + * Touchscreen group filter. + * + * Copyright (C) 2008,2009 by Openmoko, Inc. + * Author: Nelson Castillo <arhuaco@freaks-unidos.net> + * + */ + +struct ts_filter_group_configuration { + /* Size of the filter. */ + int length; + /* + * If two points are separated by this distance or less they + * are considered to be members of the same group. + */ + int close_enough; + /* Minimum allowed size for the biggest group in the sample set. */ + int threshold; + /* + * Number of times we try to get a group of points with at least + * threshold points. + */ + int attempts; + + /* Generic filter configuration. */ + struct ts_filter_configuration config; +}; + +extern const struct ts_filter_api ts_filter_group_api; + +#endif |