First push

Module/Makefile

@@ -3,7 +3,7 @@ KERNELDIR=/lib/modules/`uname -r`/build
 # This the the Makefile for the device driver (not your demonstration program)
 
 #Change the base name here to your module file name - no extension
-BASENAME=helloworld
+BASENAME=tempMonitor
 
 
 MODULES = $(BASENAME).ko 
@@ -13,5 +13,4 @@ all:
 	make -C $(KERNELDIR) M=$(PWD) modules
 
 clean:
-	make -C $(KERNELDIR) M=$(PWD) clean
+	make -C $(KERNELDIR) M=$(PWD) clean
-

Module/tempMonitor.c

@@ -0,0 +1,82 @@
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+#include <linux/ioctl.h>
+#include <linux/device.h>
+
+#define DEVICE_NAME "temp_monitor"
+#define IOCTL_GET_TEMP _IOR('t', 1, int)
+
+static int temp = 0;
+static int major_number;
+static struct class* temp_monitor_class = NULL;
+static struct device* temp_monitor_device = NULL;
+
+static int device_open(struct inode *inode, struct file *file) {
+    return 0;
+}
+
+static int device_release(struct inode *inode, struct file *file) {
+    return 0;
+}
+
+static long device_ioctl(struct file *file, unsigned int cmd, unsigned long arg) {
+    switch (cmd) {
+        case IOCTL_GET_TEMP:
+            // Simulate reading temperature
+            temp = 50; // Example temperature
+            if (copy_to_user((int *)arg, &temp, sizeof(temp))) {
+                return -EACCES;
+            }
+            break;
+        default:
+            return -EINVAL;
+    }
+    return 0;
+}
+
+static struct file_operations fops = {
+    .open = device_open,
+    .release = device_release,
+    .unlocked_ioctl = device_ioctl,
+};
+
+static int __init temp_monitor_init(void) {
+    major_number = register_chrdev(0, DEVICE_NAME, &fops);
+    if (major_number < 0) {
+        printk(KERN_ALERT "temp_monitor: Failed to register a major number\n");
+        return major_number;
+    }
+    temp_monitor_class = class_create(THIS_MODULE, DEVICE_NAME);
+    if (IS_ERR(temp_monitor_class)) {
+        unregister_chrdev(major_number, DEVICE_NAME);
+        printk(KERN_ALERT "temp_monitor: Failed to register device class\n");
+        return PTR_ERR(temp_monitor_class);
+    }
+    temp_monitor_device = device_create(temp_monitor_class, NULL, MKDEV(major_number, 0), NULL, DEVICE_NAME);
+    if (IS_ERR(temp_monitor_device)) {
+        class_destroy(temp_monitor_class);
+        unregister_chrdev(major_number, DEVICE_NAME);
+        printk(KERN_ALERT "temp_monitor: Failed to create the device\n");
+        return PTR_ERR(temp_monitor_device);
+    }
+    printk(KERN_INFO "temp_monitor: Device initialized\n");
+    return 0;
+}
+
+static void __exit temp_monitor_exit(void) {
+    device_destroy(temp_monitor_class, MKDEV(major_number, 0));
+    class_unregister(temp_monitor_class);
+    class_destroy(temp_monitor_class);
+    unregister_chrdev(major_number, DEVICE_NAME);
+    printk(KERN_INFO "temp_monitor: Device removed\n");
+}
+
+module_init(temp_monitor_init);
+module_exit(temp_monitor_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Your Name");
+MODULE_DESCRIPTION("A CPU Temperature Monitoring Kernel Module");

Test/Makefile

@@ -33,8 +33,8 @@
 # will delete the executable and any object files in your directory.
 #
 
-FIRSTNAME=
+FIRSTNAME=UzairHamed
-LASTNAME=
+LASTNAME=Mohammed
 
 ROOTNAME=$(LASTNAME)_$(FIRSTNAME)_HW
 HW=6

Test/Mohammed_UzairHamed_HW6_main.c

@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+
+#define DEVICE_NAME "/dev/temp_monitor"
+#define IOCTL_GET_TEMP _IOR('t', 1, int)
+
+int main() {
+    int fd;
+    int temp;
+
+    fd = open(DEVICE_NAME, O_RDONLY);
+    if (fd < 0) {
+        perror("Failed to open the device");
+        return -1;
+    }
+
+    if (ioctl(fd, IOCTL_GET_TEMP, &temp) < 0) {
+        perror("Failed to get temperature");
+        close(fd);
+        return -1;
+    }
+
+    printf("Current CPU Temperature: %d°C\n", temp);
+
+    close(fd);
+    return 0;
+}

me.md

@@ -0,0 +1,25 @@
+# Project Idea
+
+## Temperature Monitoring Driver
+
+Interfaces with sensors to monitor system temperature and provides alerts if thresholds are exceeded.
+
+### Kernel Module
+
+Functions:
+
+- `open`
+- `release`
+- `read`
+- `write`
+- `ioctl`
+
+Use `ioctl` to set alert thresholds and configure sensor settings.
+
+Use `read` to retrieve temperature data, and `write` to configure thresholds.
+
+Ensure proper unloading and use `printk` for logging messages.
+
+### User Application
+
+Open the device, read temperature data, set thresholds using `ioctl`, and display alerts. Also verify that temperature data is correctly read and alerts are triggered.