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Testing...

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This commit is contained in:
uzy lol 2024-12-08 17:57:36 -08:00
parent 17fa22c7ae
commit 7e87cabb3c
2 changed files with 32 additions and 23 deletions
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12
Module/tempMonitor.c
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@ -36,16 +36,15 @@ static ssize_t device_read(struct file *file, char __user *buffer, size_t len, l
struct file *f; struct file *f;
char *buf; char *buf;
loff_t pos = 0; loff_t pos = 0;
bool is_simulated = false;
if (simulate_temp) {
get_random_bytes(&temp, sizeof(temp));
temp = (temp % 40) + 10; // Simulate a temperature between 10 and 50 degrees
} else {
// Check if the temperature file exists // Check if the temperature file exists
f = filp_open(TEMP_SENSOR_PATH, O_RDONLY, 0); f = filp_open(TEMP_SENSOR_PATH, O_RDONLY, 0);
if (IS_ERR(f)) { if (IS_ERR(f)) {
printk(KERN_INFO "temp_monitor: Temperature file not found\n"); printk(KERN_INFO "temp_monitor: Temperature file not found\n");
return -EINVAL; is_simulated = true;
get_random_bytes(&temp, sizeof(temp));
temp = (temp % 40) + 10; // Simulate a temperature between 10 and 50 degrees
} else { } else {
buf = kmalloc(16, GFP_KERNEL); buf = kmalloc(16, GFP_KERNEL);
if (!buf) { if (!buf) {
@ -60,7 +59,6 @@ static ssize_t device_read(struct file *file, char __user *buffer, size_t len, l
filp_close(f, NULL); filp_close(f, NULL);
kfree(buf); kfree(buf);
} }
}
// Convert to desired unit // Convert to desired unit
if (strcmp(temp_unit, "F") == 0) { if (strcmp(temp_unit, "F") == 0) {
@ -69,7 +67,7 @@ static ssize_t device_read(struct file *file, char __user *buffer, size_t len, l
temp += 273; // Convert to Kelvin temp += 273; // Convert to Kelvin
} }
snprintf(temp_str, BUF_LEN, "%d %s\n", temp, temp_unit); snprintf(temp_str, BUF_LEN, "%d %s%s\n", temp, temp_unit, is_simulated ? " (simulated temperature)" : "");
// Copy the result to user-space // Copy the result to user-space
if (copy_to_user(buffer, temp_str, strlen(temp_str) + 1)) { if (copy_to_user(buffer, temp_str, strlen(temp_str) + 1)) {

13
Test/Mohammed_UzairHamed_HW6_main.c
View File

@ -35,6 +35,7 @@ void read_temp(int fd, const char *unit, int is_simulated) {
int main() { int main() {
int fd; int fd;
char choice;
fd = open("/dev/temp_monitor", O_RDWR); fd = open("/dev/temp_monitor", O_RDWR);
if (fd < 0) { if (fd < 0) {
@ -42,11 +43,21 @@ int main() {
return -1; return -1;
} }
// Ask the user for the preferred temperature unit
printf("Choose temperature unit (C/F): ");
scanf(" %c", &choice);
if (choice == 'C' || choice == 'c') {
// Requesting the temperature in Celsius // Requesting the temperature in Celsius
read_temp(fd, "C", 0); read_temp(fd, "C", 0);
} else if (choice == 'F' || choice == 'f') {
// Requesting the temperature in Fahrenheit // Requesting the temperature in Fahrenheit
read_temp(fd, "F", 0); read_temp(fd, "F", 0);
} else {
printf("Invalid choice. Please choose 'C' or 'F'.\n");
close(fd);
return -1;
}
// Requesting simulated temperature // Requesting simulated temperature
read_temp(fd, "simulate", 1); read_temp(fd, "simulate", 1);