* This function deals with some "special cases" devices.
*
* 0 -> No special case
- * 1 -> Skip the device but act as if the access was successfull
+ * 1 -> Skip the device but act as if the access was successful
* (return 0xff's on reads, eventually, cache config space
* accesses in a later version)
* -1 -> Hide the device (unsuccessful access)