Dennis HilkLinux diagnosticsDE

Bluetooth

Atheros AR3011 USB firmware-loader family

An Atheros USB identity used by the firmware loader before the normal HCI transport stage. Firmware loading can lead to USB re-enumeration.

Editorial source review: Share public profileOpen in the identification tool
On this page
  1. Overview & identity
  2. Driver & binding
  3. Firmware
  4. Read-only diagnostics
  5. Limitations & related issues
  6. References

Overview & identity

0cf3:3000 is explicitly the AR3011 entry in ath3k. It identifies the reviewed loading stage, not a guarantee that a Bluetooth controller is already usable.

Curated identifiers
usb 0cf3:3000

A numeric match establishes a candidate family within the reviewed evidence. Marketing names, board variants, subsystem conditions and successful operation remain separate questions.

Driver & binding

ath3k uploads ath3k-1.fw for the original loading route; btusb is the HCI transport candidate after the device reaches its operational identity.

  • ath3k — kernel driver/module candidate
  • btusb — kernel driver/module candidate

Detected, bound, operational: learn the difference

Firmware

Host-loaded firmware required

The ath3k source declares this original firmware image. A declaration does not prove the file is installed or that loading and re-enumeration completed.

Checked examples or filename branches, not a complete installation list:

  • ath3k-1.fw

Inspect firmware packaging on your distribution

Read-only diagnostics

Run one displayed command at a time. Replace uppercase placeholders with the affected device, interface or module from your own output. Commands are never executed here. Read-only output can still contain private identifiers.

Read USB transport binding

lsusb -t

Find the controller’s port and interface in the USB tree. Driver=btusb is transport binding, not proof that firmware setup or audio profiles succeeded. This query normally needs no root privileges.

Read controllers visible to BlueZ

bluetoothctl list

This asks the BlueZ daemon for known controllers without discovery or pairing. An empty response can mean daemon or D-Bus access problems as well as absent controllers; compare kernel enumeration. Normally no root privileges are needed.

Read controller initialization

journalctl -k -b --no-pager

Read the current boot’s kernel messages for the controller, requested firmware and setup result. Journal visibility depends on local permissions; an unreadable log is not evidence of no errors. This command does not change the device.

Limitations & related issues

The same USB port can have a different identity after loading. This original AR3011 route is distinct from the patch/sysconfig route used by AR3012.

These guides are linked for relevant observations, not as known defects of every device in this family.

Choose a hardware diagnostic workflow · Inspect a log excerpt in Fix Lab

References

Source review records a checked implementation or document, not a reproduced hardware test. Version-specific tables do not establish a minimum kernel or guaranteed operation.