## Physical Device Driver Reference

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### RMHDevToHLDev - Calling Parameters

hDevice (HDEVICE) - input Resource Manager handle to the physical device. The logical device handle that is associated with this physical device handle will be returned.

hStartLDev (HLDEV) - output Handle of the logical device at which to start the search. If all logical nodes are to be searched, then HANDLE_LDEV_ROOT should be specified.

hLDev (PHLDEV) - output Pointer to the variable to receive the logical device handle (HLDEV) associated with the physical device specified.

rc (APIRET) - returns On systems where the Resource Manager driver is not installed, the library interface code will return RMRC_NOT_INSTALLED.

RMRC_IRQ_ENTRY_ILLEGAL A Resource Manager service was issued at interrupt time. The Resource Manager service request can be issued only at task time or INIT time.
RMRC_NULL_POINTER A Resource Manager service received a NULL value for a pointer that was expected to contain a valid 16:16 address.
RMRC_BAD_DEVICEHANDLE The expected Resource Manager handles were not provided because the handle was not a valid Resource Manager handle or the handle did not point to the type of object the service required.