Search notes:

include/linux/input.h

Declarations of interesting functions in include/linux/input.h are, imho:

struct input_value

The input_value struct represents an input value: 
struct input_value {
  __u16 type;
  __u16 code;
  __s32 value;
}
Compare with struct input_event found in include/uapi/linux/input.h.

struct input_dev

The input_dev struct represents an input device.

See also

include/uapi/linux/input.h

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/Linux/ke...', 1759422330, '216.73.216.42', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/Linux/kernel/source/include/linux/input_h(54): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78