Measurement Computing CB7210-based GPIB interface boards
A family of IEEE-488 (GPIB) instrument-control cards built around the CB7210.2 and CBI488.2 chipsets, sold by Measurement Computing (and rebadged by Quancom) for ISA, PCI, and PCMCIA slots from roughly the late 1990s through the mid-2000s. They were used in test and measurement labs to drive bench instruments such as oscilloscopes, signal generators, and multimeters from a PC.
recommendation
Worth keeping but flagging as legacy hardware. The boards are no longer sold new — Measurement Computing's current catalog has moved to USB-488 devices — but the driver still saw maintenance work as recently as January 2026 and was moved out of staging in 2025, and no in-tree replacement covers the same ISA/PCI/PCMCIA cards. Labs that still rely on these GPIB interfaces to talk to vintage instruments would lose that capability if it were dropped, so a legacy/niche annotation is more appropriate than removal.
repository signals
sources
- patch.msgid.link
January 2026 upstream patch touching cb7210 shows recent non-removal maintenance activity.
- patch.msgid.link
A second January 2026 cb7210 cleanup patch indicates ongoing upstream attention rather than abandonment.
- cateee.net
LKDDb identifies the supported hardware as Measurement Computing/Quancom ISA/PCI/PCMCIA GPIB boards using the cb7210 family and shows the driver present in current kernels.
- mccdaq.com
Current Measurement Computing product listing includes USB-488 but does not list old PCI/ISA/PCMCIA GPIB boards, supporting that cb7210-board hardware is no longer sold new by the original vendor in 2025.
- automation.com
A 2005 Measurement Computing catalog announcement explicitly described MCC's GPIB offerings on legacy PC buses, confirming the family is from an older product era.
codex reasoning notes (technical)
Local source read via shell `sed` shows a real module driver for Measurement Computing GPIB boards using cb7210.2/cbi488.2. Upstream activity was checked via local `git log` on the directory; that yielded the two 2026 patch.msgid links and the 2025 destaging move, with no evidence of an active removal series in the observed history. Hardware/deployment evidence came from web search: LKDDb for supported board names/buses, MCC's current RoHS product PDF showing USB-488 but not these PCI/ISA/PCMCIA boards, and a 2005 MCC catalog news item showing the family belongs to an older generation. Conclusion: keep the driver, but annotate as legacy/niche industrial-lab hardware with low present-day deployment and no obvious in-tree replacement for the same boards.