char and misc drivers · Supported

Maintainers

• M Arnd Bergmann <arnd@arndb.de>
• M Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Paths

• F drivers/char/
• F drivers/misc/
• F include/linux/miscdevice.h
• F rust/kernel/miscdevice.rs
• F samples/rust/rust_misc_device.rs
• X drivers/char/agp/
• X drivers/char/hw_random/
• X drivers/char/ipmi/
• X drivers/char/random.c
• X drivers/char/tpm/

Last 30 days

Recent patches

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

• COLD50d [PATCH 04/11] treewide: Convert struct kernel_param_ops initializers to DEFINE_KERNEL_PARAM_OPS
  2026-05-21 · Kees Cook <kees@kernel.org>
• STALE92d [RFC PATCH v1 5/9] uaccess: Switch to copy_{to/from}_user_partial() when relevant
  2026-04-27 · "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
• COLD24d [RFC PATCH 2/2] rtsx_usb: avoid USB I/O in runtime autosuspend
  2026-04-13 · Sean Rhodes <hidden>
• COLD24d [RFC PATCH 1/2] rtsx_usb: hold runtime PM during transfers
  2026-04-13 · Sean Rhodes <hidden>
• STALE180d [PATCH v4 24/54] convert ibmasmfs
  2025-11-18 · Al Viro <viro@zeniv.linux.org.uk>
• STALE180d [PATCH v4 25/54] ibmasmfs: get rid of ibmasmfs_dir_ops
  2025-11-18 · Al Viro <viro@zeniv.linux.org.uk>
• STALE255d [PATCH v3 24/50] convert ibmasmfs
  2025-11-11 · Al Viro <viro@zeniv.linux.org.uk>
• STALE255d [PATCH v3 25/50] ibmasmfs: get rid of ibmasmfs_dir_ops
  2025-11-11 · Al Viro <viro@zeniv.linux.org.uk>
• STALE248d [PATCH v2 25/50] ibmasmfs: get rid of ibmasmfs_dir_ops
  2025-10-28 · Al Viro <viro@zeniv.linux.org.uk>
• STALE248d [PATCH v2 24/50] convert ibmasmfs
  2025-10-28 · Al Viro <viro@zeniv.linux.org.uk>
• STALE310d [PATCH 5/5] mei: vsc: Remove Wentong's e-mail address
  2025-09-22 · Sakari Ailus <sakari.ailus@linux.intel.com>
• STALE309d [PATCH 23/39] ibmasmfs: get rid of ibmasmfs_dir_ops
  2025-09-20 · Al Viro <viro@zeniv.linux.org.uk>
• STALE309d [PATCH 22/39] convert ibmasmfs
  2025-09-20 · Al Viro <viro@zeniv.linux.org.uk>
• STALE382d [PATCH 1/2] driver core:add device's platform_data set for faux device
  2025-05-08 · Zongmin Zhou <hidden>
• STALE412d LANDED [PATCH v4 7/9] misc: lis3lv02d: convert to use faux_device
  2025-02-10 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE412d LANDED [PATCH v4 6/9] tlclk: convert to use faux_device
  2025-02-10 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE538d [PATCH v3 6/8] misc: lis3lv02d: convert to use faux_device
  2025-02-06 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE538d [PATCH v3 5/8] tlclk: convert to use faux_device
  2025-02-06 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE604d LANDED [PATCH v2 06/10] sysfs: treewide: constify attribute callback of bin_attribute::mmap()
  2024-11-03 · Thomas Weißschuh <linux@weissschuh.net>
• STALE710d [PATCH -next 3/9] misc: atmel-ssc: fix module autoloading
  2024-08-19 · Yuntao Liu <hidden>
• DORMANTno replies LANDED [PATCH 2/2] char: xillybus: Check USB endpoints when probing device
  2024-08-16 · Eli Billauer <eli.billauer@gmail.com>
• STALE714d LANDED [PATCH 1/2] char: xillybus: Refine workqueue handling
  2024-08-16 · Eli Billauer <eli.billauer@gmail.com>
• STALE726d LANDED [PATCH] char: xillybus: Don't destroy workqueue from work item running on it
  2024-08-01 · Eli Billauer <eli.billauer@gmail.com>
• STALE783d [PATCH v1 09/17] misc: mchp_pci1xxxx: Change nvmem reg_read/write return type
  2024-06-05 · Joy Chakraborty <hidden>
• STALE783d [PATCH v1 08/17] misc: eeprom: 93xx46: Change nvmem reg_read/write return type
  2024-06-05 · Joy Chakraborty <hidden>
• STALE783d [PATCH v1 07/17] misc: eeprom: at25: Change nvmem reg_read/write return type
  2024-06-05 · Joy Chakraborty <hidden>
• STALE783d [PATCH v1 06/17] misc: eeprom: at24: Change nvmem reg_read/write return type
  2024-06-05 · Joy Chakraborty <hidden>
• STALE783d [PATCH v1 05/17] misc: ds1682: Change nvmem reg_read/write return type
  2024-06-05 · Joy Chakraborty <hidden>
• STALE778d LANDED [PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-05-16 · Steven Rostedt <rostedt@goodmis.org>
• STALE856d LANDED [PATCH 13/28] misc: vmci_guest: Use PCI_IRQ_ALL_TYPES
  2024-03-25 · Damien Le Moal <dlemoal@kernel.org>

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.

• COLD24d [RFC PATCH 2/2] rtsx_usb: avoid USB I/O in runtime autosuspend
  2026-04-13 · Sean Rhodes <hidden>