123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100 |
- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * Copyright (c) 1999-2001 Vojtech Pavlik
- */
- /*
- * Input driver event debug module - dumps all events into syslog
- */
- #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
- #include <linux/slab.h>
- #include <linux/module.h>
- #include <linux/input.h>
- #include <linux/init.h>
- #include <linux/device.h>
- MODULE_AUTHOR("Vojtech Pavlik <[email protected]>");
- MODULE_DESCRIPTION("Input driver event debug module");
- MODULE_LICENSE("GPL");
- static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
- {
- printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
- dev_name(&handle->dev->dev), type, code, value);
- }
- static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
- const struct input_device_id *id)
- {
- struct input_handle *handle;
- int error;
- handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
- if (!handle)
- return -ENOMEM;
- handle->dev = dev;
- handle->handler = handler;
- handle->name = "evbug";
- error = input_register_handle(handle);
- if (error)
- goto err_free_handle;
- error = input_open_device(handle);
- if (error)
- goto err_unregister_handle;
- printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
- dev_name(&dev->dev),
- dev->name ?: "unknown",
- dev->phys ?: "unknown");
- return 0;
- err_unregister_handle:
- input_unregister_handle(handle);
- err_free_handle:
- kfree(handle);
- return error;
- }
- static void evbug_disconnect(struct input_handle *handle)
- {
- printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
- dev_name(&handle->dev->dev));
- input_close_device(handle);
- input_unregister_handle(handle);
- kfree(handle);
- }
- static const struct input_device_id evbug_ids[] = {
- { .driver_info = 1 }, /* Matches all devices */
- { }, /* Terminating zero entry */
- };
- MODULE_DEVICE_TABLE(input, evbug_ids);
- static struct input_handler evbug_handler = {
- .event = evbug_event,
- .connect = evbug_connect,
- .disconnect = evbug_disconnect,
- .name = "evbug",
- .id_table = evbug_ids,
- };
- static int __init evbug_init(void)
- {
- return input_register_handler(&evbug_handler);
- }
- static void __exit evbug_exit(void)
- {
- input_unregister_handler(&evbug_handler);
- }
- module_init(evbug_init);
- module_exit(evbug_exit);
|