| 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 |