我需要從iw_statistics結構中讀出一定的統計,這裏的代碼:試圖讀取iw_statistics,但代碼不會工作?
struct net_device *dev;
struct iw_statistics *wi_stats;
dev = first_net_device(&init_net);
while (dev)
{
if (strncmp(dev->name , "wlan",4)==0)
{
if (dev->wireless_handlers->get_wireless_stats(dev) !=NULL) // <--- here's where the code crashes.
{
wi_stats = dev-wireless_handlers->get_wireless_stats(dev);
printk(KERN_INFO "wi_stats = dev-wireless_handlers->get_wireless_stats(dev); worked!!! :D\n");
}
}
}
我工作的Linux內核2.6.35和我正在寫一個內核模塊。我在這裏做錯了什麼?