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authorFelix Morgner <felix.morgner@gmail.com>2023-07-11 09:43:44 +0200
committerFelix Morgner <felix.morgner@gmail.com>2023-07-11 09:43:44 +0200
commitfd89f87ee3d2721155124954dca4156866001562 (patch)
tree1ddde744143fe2ff99060bea542564a5b74f4c5f /mod/src/cyber_device_device_class.c
parent478bff552c2c01700893d19333dead6f6d11d4d5 (diff)
downloaddev-cyber-fd89f87ee3d2721155124954dca4156866001562.tar.xz
dev-cyber-fd89f87ee3d2721155124954dca4156866001562.zip
mod: move files to subdirectories
Diffstat (limited to 'mod/src/cyber_device_device_class.c')
-rw-r--r--mod/src/cyber_device_device_class.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/mod/src/cyber_device_device_class.c b/mod/src/cyber_device_device_class.c
new file mode 100644
index 0000000..b908da1
--- /dev/null
+++ b/mod/src/cyber_device_device_class.c
@@ -0,0 +1,85 @@
+/*
+ * 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>
+#include <linux/version.h>
+
+extern struct cyber_device device;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6,4,0)
+static ssize_t available_show(struct class const * class, struct class_attribute const * attribute, char * __user buffer)
+#else
+static ssize_t available_show(struct class * class, struct class_attribute * attribute, char * __user buffer)
+#endif
+ {
+ return sprintf(buffer, "infinite\n");
+ }
+static CLASS_ATTR_RO(available);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6,4,0)
+static ssize_t storage_technology_show(struct class const * class, struct class_attribute const * attribute, char * __user buffer)
+#else
+static ssize_t storage_technology_show(struct class * class, struct class_attribute * attribute, char * __user buffer)
+#endif
+ {
+ return sprintf(buffer, "condensed di-hydrogen-monoxide\n");
+ }
+static CLASS_ATTR_RO(storage_technology);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6,2,0)
+static int cyber_device_handle_uevent(struct device const * kernelDevice, struct kobj_uevent_env * environment)
+#else
+static int cyber_device_handle_uevent(struct device * kernelDevice, struct kobj_uevent_env * environment)
+#endif
+{
+ add_uevent_var(environment, "DEVMODE=%#o", 0666);
+ return 0;
+}
+
+int cyber_device_init_device_class(void)
+{
+ int error = 0;
+
+ device.class.name = CLS_NAME;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6,4,0)
+ device.class.owner = THIS_MODULE;
+#endif
+ device.class.dev_uevent = cyber_device_handle_uevent;
+ if((error = class_register(&device.class)))
+ {
+ printk(KERN_ALERT DEV_NAME ": Failed to register CYBER device class!\n");
+ }
+
+ if((error = class_create_file(&device.class, &class_attr_available)) ||
+ (error = class_create_file(&device.class, &class_attr_storage_technology)))
+ {
+ printk(KERN_ALERT DEV_NAME ": Failed to register sysfs CYBER attributes!\n");
+ }
+
+ return error;
+}
+
+void cyber_device_shutdown_device_class(void)
+{
+ class_unregister(&device.class);
+}