#define CDO_CHECK_TYPE 0x10 /* check type on open for data */
/* Special codes used when specifying changer slots. */
-#define CDSL_NONE ((int) (~0U>>1)-1)
-#define CDSL_CURRENT ((int) (~0U>>1))
+#define CDSL_NONE (INT_MAX-1)
+#define CDSL_CURRENT INT_MAX
/* For partition based multisession access. IDE can handle 64 partitions
* per drive - SCSI CD-ROM's use minors to differentiate between the