static int timerirq_release(struct inode *inode, struct file *file)
{
struct timerirq_data *data = file->private_data;
dev_dbg(data->dev->this_device, "timerirq_release\n");
if (data->run)
stop_timerirq(data);
kfree(data);
return 0;
}
static int timerirq_release(struct inode *inode, struct file *file)
{
struct timerirq_data *data = file->private_data;
printk(KERN_DEBUG "[TIMERIRQ] %s: data->run = %d\n",
__func__, data->run);
if (data->run)
stop_timerirq(data);
del_timer_sync(&(data->timer));
kfree(data);
return 0;
}
/* ioctl - I/O control */
static long timerirq_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int retval = 0;
int tmp;
struct timerirq_data *data = file->private_data;
dev_dbg(data->dev->this_device,
"%s current->pid %d, %d, %ld\n",
__func__, current->pid, cmd, arg);
if (!data)
return -EFAULT;
switch (cmd) {
case TIMERIRQ_SET_TIMEOUT:
data->timeout = arg;
break;
case TIMERIRQ_GET_INTERRUPT_CNT:
tmp = data->data.interruptcount - 1;
if (data->data.interruptcount > 1)
data->data.interruptcount = 1;
if (copy_to_user((int *)arg, &tmp, sizeof(int)))
return -EFAULT;
break;
case TIMERIRQ_START:
data->period = arg;
retval = start_timerirq(data);
break;
case TIMERIRQ_STOP:
retval = stop_timerirq(data);
break;
default:
retval = -EINVAL;
}
return retval;
}
