1STRUCT INPUT_HANDLER(9)         Input Subsystem        STRUCT INPUT_HANDLER(9)
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NAME

6       struct_input_handler - implements one of interfaces for input devices
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SYNOPSIS

9       struct input_handler {
10         void * private;
11         void (* event) (struct input_handle *handle, unsigned int type, unsigned int code, int value);
12         int (* connect) (struct input_handler *handler, struct input_dev *dev, const struct input_device_id *id);
13         void (* disconnect) (struct input_handle *handle);
14         void (* start) (struct input_handle *handle);
15         const struct file_operations * fops;
16         int minor;
17         const char * name;
18         const struct input_device_id * id_table;
19         const struct input_device_id * blacklist;
20         struct list_head h_list;
21         struct list_head node;
22       };
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MEMBERS

25       private
26           driver-specific data
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28       event
29           event handler. This method is being called by input core with
30           interrupts disabled and dev->event_lock spinlock held and so it may
31           not sleep
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33       connect
34           called when attaching a handler to an input device
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36       disconnect
37           disconnects a handler from input device
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39       start
40           starts handler for given handle. This function is called by input
41           core right after connect method and also when a process that
42           “grabbed” a device releases it
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44       fops
45           file operations this driver implements
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47       minor
48           beginning of range of 32 minors for devices this driver can provide
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50       name
51           name of the handler, to be shown in /proc/bus/input/handlers
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53       id_table
54           pointer to a table of input_device_ids this driver can handle
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56       blacklist
57           pointer to a table of input_device_ids this driver should ignore
58           even if they match id_table
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60       h_list
61           list of input handles associated with the handler
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63       node
64           for placing the driver onto input_handler_list
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DESCRIPTION

67       Input handlers attach to input devices and create input handles. There
68       are likely several handlers attached to any given input device at the
69       same time. All of them will get their copy of input event generated by
70       the device.
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72       Note that input core serializes calls to connect and disconnect
73       methods.
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76Kernel Hackers Manual 2.6.         June 2019           STRUCT INPUT_HANDLER(9)
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