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| author | Felix Morgner <felix.morgner@gmail.com> | 2023-07-11 09:43:44 +0200 |
|---|---|---|
| committer | Felix Morgner <felix.morgner@gmail.com> | 2023-07-11 09:43:44 +0200 |
| commit | fd89f87ee3d2721155124954dca4156866001562 (patch) | |
| tree | 1ddde744143fe2ff99060bea542564a5b74f4c5f /mod/src/cyber_device.c | |
| parent | 478bff552c2c01700893d19333dead6f6d11d4d5 (diff) | |
| download | dev-cyber-fd89f87ee3d2721155124954dca4156866001562.tar.xz dev-cyber-fd89f87ee3d2721155124954dca4156866001562.zip | |
mod: move files to subdirectories
Diffstat (limited to 'mod/src/cyber_device.c')
| -rw-r--r-- | mod/src/cyber_device.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/mod/src/cyber_device.c b/mod/src/cyber_device.c new file mode 100644 index 0000000..67b9695 --- /dev/null +++ b/mod/src/cyber_device.c @@ -0,0 +1,103 @@ +/* + * 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 <http://www.gnu.org/licenses/>. + */ + +#include "cyber.h" +#include "cyber_device.h" + +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/string.h> + +struct cyber_device device = {}; + +/** + * Initialize the sysfs CYBER device class + * + * @return zero on success, non-zero otherwise + */ +int cyber_device_init_device_class(void); + +/** + * Shutdown the sysfs CYBER device class + */ +void cyber_device_shutdown_device_class(void); + +/** + * Initialize the CYBER character device + * + * @return zero on success, non-zero otherwise + */ +int cyber_device_init_character_device(void); + +/** + * Shutdown the CYBER character device + */ +void cyber_device_shutdown_character_device(void); + +/** + * Initialize the CYBER kernel device + * + * @return zero on success, non-zero otherwise + */ +int cyber_device_init_kernel_device(void); + +/** + * Shutdown the CYBER kernel device + */ +void cyber_device_shutdown_kernel_device(void); + +int cyber_device_init(void) +{ + int error = 0; + + printk(KERN_INFO DEV_NAME ": Initializing CYBER device\n"); + + if((error = cyber_device_init_character_device())) + { + return error; + } + + if((error = cyber_device_init_device_class())) + { + cyber_device_shutdown_character_device(); + return error; + } + + if((error = cyber_device_init_kernel_device())) + { + cyber_device_shutdown_character_device(); + cyber_device_shutdown_device_class(); + return error; + } + + printk(KERN_INFO DEV_NAME ": New CYBER device with major %d minor %d\n", MAJOR(device.number), MINOR(device.number)); + return error; +} + +void cyber_device_shutdown(void) +{ + printk(KERN_INFO DEV_NAME ": Shutting down CYBER device\n"); + cyber_device_shutdown_kernel_device(); + cyber_device_shutdown_device_class(); + cyber_device_shutdown_character_device(); +} + +void cyber_device_release(struct device * device) +{ + printk(KERN_INFO DEV_NAME ": Closing kernel CYBER device\n"); +} |
