HP/Agilent 82341 ISA/EISA HP-IB (GPIB) instrument interface cards
A family of ISA and EISA add-in cards (82341B/C and relatives) that Hewlett-Packard, later Agilent and now Keysight, sold from the mid-1990s into the early 2000s to connect PCs to lab and industrial test equipment over HP-IB / IEEE-488 (GPIB). They were a standard way to drive oscilloscopes and signal generators from Windows 95/98/NT/2000 PCs.
recommendation
Worth keeping but flagging as legacy. The hardware has been marked obsolete by Keysight for years and was last sold roughly two decades ago, but the driver was only just promoted out of the kernel staging tree in late 2025 and picked up further cleanup in early 2026, so it is plainly still maintained. Anyone with a working ISA/EISA test bench can keep using it; new deployments should look at the PCI-era 82350-class cards (handled by drivers/gpib/agilent_82350b) instead.
repository signals
sources
- patch.msgid.link
The GPIB stack, including hp_82341, was actively moved out of staging into drivers in late 2025 rather than being targeted for removal.
- patch.msgid.link
hp_82341 received a non-mechanical cleanup in January 2026, showing at least some current upstream maintenance attention.
- keysight.com
Keysight lists 82341B as Obsolete and describes it as an ISA/EISA HP-IB card for old Windows platforms, indicating the hardware family is long out of current sales.
- keysight.com
Keysight lists 82341C as Obsolete; it is an ISA GPIB interface for Windows 95/98/NT/2000, reinforcing that this is legacy PC-bus hardware.
- keysight.com
The 82335/82340/82341 install-guide errata says Agilent no longer sells or supports the product family.
- forums.ni.com
A 2007 NI forum thread discusses replacing an HP 82341 ISA card with an Agilent 82350A PCI card, which is consistent with hp_82341 surviving mainly in legacy lab/industrial setups and 82350-class hardware being the natural newer vendor path.
codex reasoning notes (technical)
Not an early-exit case: this directory contains a real kernel driver (local shell read of hp_82341.c showed module metadata and probe logic). Upstream activity was established from local git history via shell: destaging in Nov 2025 and a driver-specific cleanup in Jan 2026; no removal/deprecation hit was found in local path history grep. Product-status evidence came from web search result URLs on Keysight product pages and the archived install-guide PDF; deployment evidence came from the NI forum URL returned by web search. Hardware is clearly obsolete ISA-era instrumentation I/O, but the driver was only recently promoted from staging and still sees some maintenance, so removal/deprecation is premature; annotate as legacy instead.