## Physical Device Driver Reference

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### MON_REGISTERMONITOR (40h) - Returns

An error is returned to the caller if monitor registration fails because of invalid parameters (for example, the specification of an invalid monitor chain (Index), the monitor buffers are too small, or there are not enough system resources).

When an error condition occurs, the following return codes are found in the request packet status field:

12H NO_MONITOR_SUPPORT
03H BAD_COMMAND
0CH GENERAL_FAILURE