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cubelinux-kernel/Documentation/ABI/testing/usb-uevent
T
Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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What: Raise a uevent when a USB Host Controller has died
Date: 2019-04-17
KernelVersion: 5.2
Contact: linux-usb@vger.kernel.org
Description: When the USB Host Controller has entered a state where it is no
longer functional a uevent will be raised. The uevent will
contain ACTION=offline and ERROR=DEAD.
Here is an example taken using udevadm monitor -p::
KERNEL[130.428945] offline /devices/pci0000:00/0000:00:10.0/usb2 (usb)
ACTION=offline
BUSNUM=002
DEVNAME=/dev/bus/usb/002/001
DEVNUM=001
DEVPATH=/devices/pci0000:00/0000:00:10.0/usb2
DEVTYPE=usb_device
DRIVER=usb
ERROR=DEAD
MAJOR=189
MINOR=128
PRODUCT=1d6b/2/414
SEQNUM=2168
SUBSYSTEM=usb
TYPE=9/0/1
Users: chromium-os-dev@chromium.org