hdcSrc

hdcSrc is a term encountered in various software projects that relates to the source or origin of a hard disk controller (HDC). It does not have a single, universal definition, and its exact meaning depends on the codebase or documentation in which it appears. In practice, hdcSrc is often used as an identifier, pointer, or label associated with a storage controller within a data structure or API.

In typical usage, hdcSrc may be a field in a data structure that represents a storage controller, used to track where the controller data originated or to reference a related object such as a PCI device, bus, or firmware interface. It can also appear as a function or macro that returns the source of the HDC, or as a string or numeric value used in logging, diagnostics, or device discovery. Because it is not standardized, the type and scope of hdcSrc—whether it stores a pointer, an ID, or a human-readable label—vary between projects.

Common values or interpretations of hdcSrc include references to PCIe or PCI slots, bus IDs, vendor or device identifiers, or internal routing keys used by a driver to map a controller to its hardware or to a higher-level management component. In documentation, hdcSrc is typically described in the context of the specific storage subsystem or driver.

See also: hard disk controller, storage controller, device drivers, PCI, AHCI, SCSI.