Hi...:) On Fri, Dec 24, 2010 at 13:40, Hemanth Kumar <hemwire@yahoo.co.in> wrote:
Hi mulyadi,
Sorry for sending the mail directly,
It's ok, but just to let you know..I am just average when dealing with kernel :)
ssize_t my_read(struct file *file,char *buf,size_t count,loff_t *pos){ unsigned long res; void *k = (void *)&x; void *l = (void *)&x+1; void *j = (void *)&x+2;
mutex_lock(&timer); res = copy_to_user(buf,k,sizeof(short));
hm, you say "read from user space", right? Then why "copy_to_user"? shouldn't it be "copy_from_user"? -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com