i2c subsystem · Maintained

Maintainers

• M Andi Shyti <andi.shyti@kernel.org>

Paths

• F Documentation/i2c/
• F drivers/i2c/*
• F include/dt-bindings/i2c/i2c.h
• F include/linux/i2c-dev.h
• F include/linux/i2c-smbus.h
• F include/linux/i2c.h
• F include/uapi/linux/i2c-*.h
• F include/uapi/linux/i2c.h

Last 30 days

Most active threads (last 7 days)

• WARM3d [PATCH v8 0/3] lan966x pci device: Add support for SFPs, i2c part
  2026-06-30 10:30 · 1 reply in 7d · Herve Codina <herve.codina@bootlin.com>

Active reviewers (last 30 days)

• Andi Shyti <andi.shyti@kernel.org>
  1 attestation (1 Reviewed-by) · last on 2026-06-30

Recent patches

Most-recent 30 patches in this subsystem on linux-i2c (capped at 30), ordered by date desc.

• WARM3d REVIEWED: 3 (3M) [PATCH v8 1/3] i2c: core: Introduce i2c_get_adapter_physdev()
  2026-06-30 · Herve Codina <herve.codina@bootlin.com>
• WARM2d [PATCH 1/7] i2c: add I2C_XFER_V2 - support for detailed transfer reporting
  2026-06-23 · Dmitry Guzman <hidden>
• COLD42d [PATCH v2] i2c: i2c-stub: support for I2C_FUNC_I2C
  2026-05-16 · Peter Bohner <hidden>
• COLD49d [PATCH] i2c: i2c-stub: support for I2C_FUNC_I2C
  2026-05-14 · Peter Bohner <hidden>
• COLD28d REVIEWED: 3 (3M) [PATCH v7 1/3] i2c: core: Introduce i2c_get_adapter_physdev()
  2026-05-11 · Herve Codina <herve.codina@bootlin.com>
• COLD26d [PATCH RESEND] i2c: change return type to bool for i2c_check_functionality
  2026-04-21 · Thorsten Blum <thorsten.blum@linux.dev>
• DORMANTno replies [PATCH] i2c: change return type to bool for i2c_check_functionality
  2026-03-29 · Thorsten Blum <thorsten.blum@linux.dev>
• COLD57d REVIEWED: 3 (3M) [PATCH v6 14/27] i2c: core: Introduce i2c_get_adapter_physdev()
  2026-03-25 · Herve Codina <herve.codina@bootlin.com>
• COLD33d [PATCH v9 5/5] docs: i2c: i2c-topology: add section about bus speed
  2026-03-24 · Marcus Folkesson <marcus.folkesson@gmail.com>
• COLD33d [PATCH v9 1/5] i2c: core: add callback to change bus frequency
  2026-03-24 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE109d [PATCH v8 5/5] docs: i2c: i2c-topology: add section about bus speed
  2026-03-14 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE109d [PATCH v8 1/5] i2c: core: add callback to change bus frequency
  2026-03-14 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE112d REVIEWED: 3 (3M) [PATCH v5 15/28] i2c: core: Introduce i2c_get_adapter_physdev()
  2026-02-27 · Herve Codina <herve.codina@bootlin.com>
• STALE116d [PATCH v7 5/5] docs: i2c: i2c-topology: add section about bus speed
  2026-02-23 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE116d [PATCH v7 1/5] i2c: core: add callback to change bus frequency
  2026-02-23 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE126d REVIEWED: 7 (7M) [PATCH v2 1/9] i2c: provide i2c_adapter_set_node()
  2026-02-23 · Bartosz Golaszewski <hidden>
• STALE123d [PATCH v2 01/12] i2c: allow setting the parent device and OF node through the adapter struct
  2026-02-23 · Bartosz Golaszewski <hidden>
• STALE126d [PATCH v2 1/4] i2c: provide i2c_adapter_dev()
  2026-02-23 · Bartosz Golaszewski <hidden>
• STALE108d [PATCH v2 02/13] i2c: add i2c_adapter-specific printk helpers
  2026-02-23 · Bartosz Golaszewski <hidden>
• STALE130d [PATCH v6 5/5] docs: i2c: i2c-topology: add section about bus speed
  2026-02-16 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE130d [PATCH v6 1/5] i2c: core: add callback to change bus frequency
  2026-02-16 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE137d [PATCH v5 5/5] docs: i2c: i2c-topology: add section about bus speed
  2026-02-13 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE137d [PATCH v5 1/5] i2c: core: add callback to change bus frequency
  2026-02-13 · Marcus Folkesson <marcus.folkesson@gmail.com>
• COLD22d [PATCH 1/2] i2c: i801: Detect SPD Write Disable and expose as adapter quirk
  2026-02-05 · Tinsae Tadesse <hidden>
• STALE144d [PATCH 3/5] rust: i2c: Add I2C Adapter registration abstractions
  2026-01-31 · Igor Korotin via B4 Relay <devnull+igor.korotin.linux.gmail.com@kernel.org>
• STALE140d [PATCH v4 5/5] docs: i2c: i2c-topology: add section about bus speed
  2026-01-28 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE140d [PATCH v4 1/5] i2c: core: add callback to change bus frequency
  2026-01-28 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE151d [PATCH v2 1/4] i2c: SMBus Address Resolution Protocol implementation for host side
  2026-01-21 · Heikki Krogerus <heikki.krogerus@linux.intel.com>
• STALE171d [PATCH v1 1/4] i2c: SMBus Address Resolution Protocol implementation for host side
  2026-01-13 · Heikki Krogerus <heikki.krogerus@linux.intel.com>
• STALE171d [PATCH 1/6] i2c: provide i2c_adapter_dev()
  2025-12-23 · Bartosz Golaszewski <hidden>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE178d [PATCH 01/12] i2c: allow setting the parent device and OF node through the adapter struct
  2025-12-23 · Bartosz Golaszewski <hidden>
• STALE168d [PATCH 1/7] i2c: provide i2c_adapter_set_node()
  2025-12-23 · Bartosz Golaszewski <hidden>
• STALE171d [PATCH 1/6] i2c: provide i2c_adapter_dev()
  2025-12-23 · Bartosz Golaszewski <hidden>
• STALE171d [PATCH v1 1/4] i2c: SMBus Address Resolution Protocol implementation for host side
  2026-01-13 · Heikki Krogerus <heikki.krogerus@linux.intel.com>
• STALE151d [PATCH v2 1/4] i2c: SMBus Address Resolution Protocol implementation for host side
  2026-01-21 · Heikki Krogerus <heikki.krogerus@linux.intel.com>
• STALE140d [PATCH v4 1/5] i2c: core: add callback to change bus frequency
  2026-01-28 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE140d [PATCH v4 5/5] docs: i2c: i2c-topology: add section about bus speed
  2026-01-28 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE144d [PATCH 3/5] rust: i2c: Add I2C Adapter registration abstractions
  2026-01-31 · Igor Korotin via B4 Relay <devnull+igor.korotin.linux.gmail.com@kernel.org>
• STALE130d [PATCH v6 1/5] i2c: core: add callback to change bus frequency
  2026-02-16 · Marcus Folkesson <marcus.folkesson@gmail.com>
• STALE130d [PATCH v6 5/5] docs: i2c: i2c-topology: add section about bus speed
  2026-02-16 · Marcus Folkesson <marcus.folkesson@gmail.com>