- HP’s GPIB standard receives support for Linux 53 years after its original release
- Legacy lab instruments can now integrate seamlessly with modern Linux distributions
- Interface maintains original 8MB/s bandwidth across multiple connected devices
A bus standard introduced by HP in 1972 finally gained stable support for Linux drivers, more than fifty years after its initial release.
HP created the interface to link laboratory instruments with computers, and it later became known as IEEE 488 after standardization in 1975.
The design allowed multiple devices to share a single bus of up to twenty meters while offering data transfer speeds of up to 8 MB/s, which was impressive for its time.
GPIB Historical Context
When developers introduced the bus, computing was still in its early stages. Intel had just released the 8008 processor and the personal computer industry had not yet emerged.
Popular interfaces used today, such as USB and PCIe, were still decades away.
GPIB provided a short-range parallel multi-master communication system and quickly found use in oscilloscopes, multimeters, and other laboratory instruments.
The standard later found its way into home computing, including Commodore 64 and Acorn systems, where it reliably connected peripheral devices.
The bus has now been moved from provisional to stable support in the Linux 6.19 kernel.
Previous inclusion in the main kernel allowed for testing, but the driver is now officially recognized and fully functional.
Greg Kroah-Hartman, an influential Linux kernel developer and member of the Linux Foundation, confirmed the update in the Linux 6.19-rc1 pull request.
“Here’s the big set of interim driver updates for 6.19-rc1,” wrote Kroah-Hartman.
“The only ‘important’ thing here is that two subsystems, gpib and vc04, have been moved from the staging tree to the ‘real’ portion of the kernel, which is cool to see.”
The interface retains its original bandwidth of 8 MB/s, which is still sufficient for most current measurement instruments.
Its stackable connector design and compatibility with multiple devices continue to provide reliable operation after decades of use.
The adoption of the standard in both home computers and laboratory equipment reflects its flexibility and long-term durability.
Stable Linux support now allows older instruments to be integrated into modern workflows.
Researchers and engineers can connect older hardware with current productivity tools without relying on external adapters.
The update shows how long-established technologies can continue to provide practical value when modern software support advances them.
Through Tom Hardware
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