Shared helper code for the NEC µPD7210 GPIB (IEEE-488) controller chip, a general-purpose interface bus controller used on lab and instrumentation cards from the 1980s and 1990s to talk to oscilloscopes, signal generators, and other test equipment. The actual hardware-binding GPIB board drivers link against this library rather than this directory being a driver in its own right.
This is not actually a driver directory; it is a shared support library that exports common µPD7210 chip-handling routines for other GPIB board drivers in the kernel's GPIB subsystem to call into. It has no device binding of its own, so the keep-or-remove question only makes sense for the boards that depend on it.
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monthly commits · 2021-04-21 → 2026-04-21 · 1 total · active in 1/61 months
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codex reasoning notes (technical)
Not a driver directory: contains shared GPIB NEC uPD7210 support/library code (exports symbols, no device binding/entry-point), not a standalone kernel-bound hardware driver.