Can someone tell me the meaning of the _IOC_SIZE(cmd) value?
ex:
on the user side:
ioctl(fd,_MY_IOCTL,&buffer) (sizeof buffer = 1000)
on the kernel side
ioctl_function(struct inode *inode, struct file *filp, unsigned int cmd,
ulong arg)
..
size = _IOC_SIZE(cmd)
and here size = 4 ??? I would expected 1000...no?
Perhaps my ioctl process is totaly wrong?
Fabien
Get Your Private, Free Email at http://www.hotmail.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/