#define MAGIC_CHECK(is,should) if (unlikely((is) != (should))) \
{ printk(KERN_ERR "magic mismatch: %x (expected %x)\n",is,should); BUG(); }
-static int debug = 0;
+static int debug;
module_param(debug, int, 0644);
MODULE_DESCRIPTION("helper module to manage video4linux pci dma sg buffers");