On Thu, 27 Dec 2012, Rahul Bedarkar wrote: > Hi, > > When ioctl() is called from user space, how device driver related to it > comes into picture ? What is flow from user space to kernel space ? > You may want to just follow the calls down from the syscall handler in fs/ioctl.c. For special devices and non-handled ioctls you will end up in vfs_ioctl() which calls the ->f_op->unlocked_ioctl() method of the backing struct file defined in the driver, supposedly. Regards, Tobi _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
