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1a59d1b8e0
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 1999-2001 Vojtech Pavlik
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*/
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/*
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* Input driver event debug module - dumps all events into syslog
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*/
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/*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/input.h>
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#include <linux/init.h>
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#include <linux/device.h>
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION("Input driver event debug module");
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MODULE_LICENSE("GPL");
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static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
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{
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printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
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dev_name(&handle->dev->dev), type, code, value);
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}
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static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
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const struct input_device_id *id)
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{
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struct input_handle *handle;
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int error;
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handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
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if (!handle)
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return -ENOMEM;
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handle->dev = dev;
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handle->handler = handler;
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handle->name = "evbug";
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error = input_register_handle(handle);
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if (error)
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goto err_free_handle;
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error = input_open_device(handle);
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if (error)
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goto err_unregister_handle;
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printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
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dev_name(&dev->dev),
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dev->name ?: "unknown",
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dev->phys ?: "unknown");
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return 0;
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err_unregister_handle:
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input_unregister_handle(handle);
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err_free_handle:
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kfree(handle);
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return error;
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}
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static void evbug_disconnect(struct input_handle *handle)
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{
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printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
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dev_name(&handle->dev->dev));
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input_close_device(handle);
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input_unregister_handle(handle);
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kfree(handle);
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}
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static const struct input_device_id evbug_ids[] = {
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{ .driver_info = 1 }, /* Matches all devices */
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{ }, /* Terminating zero entry */
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};
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MODULE_DEVICE_TABLE(input, evbug_ids);
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static struct input_handler evbug_handler = {
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.event = evbug_event,
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.connect = evbug_connect,
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.disconnect = evbug_disconnect,
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.name = "evbug",
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.id_table = evbug_ids,
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};
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static int __init evbug_init(void)
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{
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return input_register_handler(&evbug_handler);
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}
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static void __exit evbug_exit(void)
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{
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input_unregister_handler(&evbug_handler);
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}
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module_init(evbug_init);
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module_exit(evbug_exit);
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