From fd89f87ee3d2721155124954dca4156866001562 Mon Sep 17 00:00:00 2001 From: Felix Morgner Date: Tue, 11 Jul 2023 09:43:44 +0200 Subject: mod: move files to subdirectories --- mod/src/cyber_device_character_device.c | 53 +++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 mod/src/cyber_device_character_device.c (limited to 'mod/src/cyber_device_character_device.c') diff --git a/mod/src/cyber_device_character_device.c b/mod/src/cyber_device_character_device.c new file mode 100644 index 0000000..f99e97e --- /dev/null +++ b/mod/src/cyber_device_character_device.c @@ -0,0 +1,53 @@ +/* + * cyber - Add CYBER to your system + * Copyright (C) 2017 Felix Morgner + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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, see . + */ + +#include "cyber.h" +#include "cyber_device.h" + +#include +#include +#include + +extern struct cyber_device device; +extern struct file_operations const cyber_operations; + +int cyber_device_init_character_device(void) +{ + int error = 0; + + if((error = alloc_chrdev_region(&device.number, 0, 1, DEV_NAME))) + { + printk(KERN_ALERT DEV_NAME ": Failed to allocate character device!\n"); + } + + cdev_init(&device.character, &cyber_operations); + device.character.owner = THIS_MODULE; + device.character.ops = &cyber_operations; + + if((error = cdev_add(&device.character, device.number, 1))) + { + printk(KERN_ALERT DEV_NAME ": Failed to add character device (Error: %d)!\n", error); + } + + return error; +} + +void cyber_device_shutdown_character_device(void) +{ + cdev_del(&device.character); + unregister_chrdev_region(device.number, 1); +} -- cgit v1.2.3