drivers/net/can/usb/peak_usb · keep

PEAK-System PCAN-USB CAN bus adapters

A family of USB-to-CAN bus adapters from German vendor PEAK-System (PCAN-USB, PCAN-USB FD, PCAN-USB Pro FD, and PCAN-USB X6) used by automotive engineers, industrial automation integrators, and embedded developers to talk to CAN and CAN-FD networks from a PC. The hardware has been on the market since the 2000s and remains in active production today.

keep conf=0.93 deploy=medium replacement=none subsystem=net category=networking-other

93%

recommendation

It should stay because PEAK-System still sells the PCAN-USB, PCAN-USB FD, PCAN-USB Pro FD, and PCAN-USB X6 as current products in 2025, the upstream code is receiving active maintenance into 2025-2026, and a recent stable backport fixed a real PCAN-USB FD bug — all clear signs of a deployed user base in industrial and automotive CAN bus work.

repository signals

7 files

5,094 source lines

44 commits, 5y

+584 / −318 lines added / removed, 5y

16 authors, 5y

monthly commits · 2021-04-21 → 2026-04-21 · 44 total · active in 20/61 months

sources

lore.kernel.org
Recent upstream touch in 2026 shows the driver is still actively maintained, not abandoned or under removal.
lore.kernel.org
A 2025 stable backport fixes a PEAK USB FD malfunction, indicating real bug-fix traffic and deployed users.
peak-system.com
PEAK-System's current product overview still lists PCAN-USB, PCAN-USB FD, PCAN-USB Pro FD, and PCAN-USB X6 as active products.
peak-system.com
Official product page shows PCAN-USB FD is sold as a current USB CAN/CAN-FD adapter with Linux driver support.
peak-system.com
Official product page shows PCAN-USB Pro FD is sold as a current dual-channel CAN/CAN-FD/LIN adapter with Linux driver support.
cateee.net
LKDDb shows CONFIG_CAN_PEAK_USB remains present through current kernels and covers multiple PEAK USB product IDs.

codex reasoning notes (technical)

`keep`: lore_activity/lore_file_timeline on `pcan_usb.c` and `pcan_usb_fd.c` showed ongoing 2025-2026 maintenance plus a stable fix, and no credible removal signal; a linux-can removal regex attempt timed out rather than finding evidence. Vendor product-overview and official PCAN-USB FD / PCAN-USB Pro FD pages were obtained via web search and show the hardware family is still sold new. LKDDb URL was obtained via web search and confirms ongoing kernel presence. Industrial CAN USB adapters are niche but current, so deployments are better described as medium than legacy-only.