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authorDapeng Mi <dapeng1.mi@linux.intel.com>2026-09-17 09:52:33 +0800
committerIngo Molnar <mingo@kernel.org>2026-09-22 11:37:46 +0200
commit0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch)
tree531306c2299f9a269f0a986e29f17ba972180104 /Documentation/ABI/testing/usb-uevent
downloadlinux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz
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perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
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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