Add ioctl package

pkg/ioctl/ioctl_linux.go

@@ -0,0 +1,14 @@
+package ioctl
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+func Ioctl(fd int, req uint, arg unsafe.Pointer) error {
+	_, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), uintptr(req), uintptr(arg))
+	if err != 0 {
+		return err
+	}
+	return nil
+}