mpt_ioctl_diag_reset
struct mpt_ioctl_diag_reset __user *urinfo = (void __user *) arg;
struct mpt_ioctl_diag_reset krinfo;
if (copy_from_user(&krinfo, urinfo, sizeof(struct mpt_ioctl_diag_reset))) {
#define MPTHARDRESET _IOWR(MPT_MAGIC_NUMBER,24,struct mpt_ioctl_diag_reset)