USBNET(4) Device Drivers Manual USBNET(4)

usbnet
generic USB network driver backend diagnostics

The usbnet subsystem provides support for USB network devices. This manual describes diagnostics that may be seen.

devN: sysctl_createv failed
Unable to create debug node for NetBSD.
devN: usb errors on rx
Error status from device upon Rx interrupt, device may be non-functional.
devN: usb error on tx
Error status from device upon Tx interrupt., device may be non-functional.
devN: usb error on intr
Error status from device upon interrupt, device may be non-functional.
devN: rxeof: too large transfer
Network input rejected.
devN: close pipe N
Closing of Rx, Tx or Interrupt pipe failed, device may be non-functional.
devN: open rx/tx pipes failed
Opening of Rx or Tx pipes failed, device non-functional.
devN: [rt]x list init failed
Creation of Rx or Tx list failed, device non-functional.
devN: watchdog timeout
Time out in transmission.
devN: pipe abort failed
Aborting USB pipes after watchdog timeout failed.
devN: couldn't establish power handler
Call to pmf_device_register(9) failed, disabling system suspend.

The usbnet manual lists generic diagnostics generated by USB network devices.

arp(4), aue(4), axe(4), axen(4), cdce(4), cue(4), ifmedia(4), intro(4), kue(4), mos(4), mue(4), netintro(4), smsc(4), udav(4), upl(4), ure(4), url(4), urndis(4), usb(4), usbnet(9)

The usbnet framework first appeared in NetBSD 9.0.

The usbnet framework was written by Matthew R. Green <mrg@eterna.com.au>
June 15, 2021 NetBSD 10.1