In module code: *unsigned char buf[20];*
*struct file *device;* *device = filp_open(...);* *device->f_op->read(device,buf,20,&device->f_pos);* In signature(interface) of *read()* of *struct file*, *buf* should came from user-space. I fed my buffer, and I get correct data from that, Is that correct? Shouldn't I provide a user-space buffer to that ?
_______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
