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Hi, On 7/19/06, Chinmaya Mishra <chinmaya4@gmail.com> wrote: > Hi, > > Can you provide an example how to invoke ioctl on > device in kernel module. > > For example. I want to find out the IP address of > my eth0 and I want to make SIOCSIFADDR on it from > kernel module. > > > At user space i am doing it like this..... > > unsigned long *ip; > char *iface; > int sockfd; > struct ifreq ifr; > strcpy(ifr.ifr_name, iface); // interface name 'eth0' > sockfd = socket(AF_INET,SOCK_DGRAM,0); > ioctl(sockfd, SIOCGIFADDR, (char*)&ifr); > memcpy(ip, &(ifr.ifr_addr.sa_data[2]),4); //Copy the ip addr > close(sockfd); > > How to port this in keernel space. Check point 29 from http://kasperd.net/~kasperd/comp.os.linux.development.faq. Modify that source code according to your needs. Regards, Parag. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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