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Jason Hinterweger
Jason Hinterweger

0a12 0001 Driver



The device ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) has a regression bug, and currently only works in the kernel version 5.17 and




0a12 0001 driver



If you cannot find the latest version driver (or firmware) for Windows, you can copy the latest firmware file /usr/lib/firmware/mediatek/BT_RAM_CODE_MT7961_1_2_hdr.bin.xz from Arch Linux and extract to Windows (e.g. C:\WINDOWS\system32\DRIVERS\, you can find the firmware file path in the device manager on Windows).


Same problem with 0a12/0001 under Ubuntu 20.04.4. My second computer works with debian 11 bullseye, where the adapter works fine. There I found an installed package which isn't installed in Ubuntu 20.04 by default. So in 20.04 try installing the bluetooth package. Works for Vendor 0a12/0001.Open a terminal and type sudo apt install bluetooth


The auto-suspension of USB ports can interfere with Bluetooth USB dongles. While auto-suspend helps to save power and the devices should wake up quickly on their own can this fail and so degrade the Bluetooth connectivity. By default does the kernel suspend USB ports after 2 seconds. This can be disabled either for all USB ports or only for individual ones, and the Bluetooth USB driver has got a parameter, which specifically controls this for USB-attached Bluetooth dongles. For example, to see the current status:


When you are already recompiling the kernel then it is likely best to disable it with the Bluetooth USB kernel module by setting the configuration parameter CONFIG_BT_HCIBTUSB_AUTOSUSPEND to N or by commenting it out in the kernel config file. This will cause the Bluetooth USB driver to disable auto-suspend by default for every port it finds a matching device on, and leaves all other USB devices as they were.


I had issues with two different 0a12:0001 Cambridge Silicon Radio. Both were TRENDnet TBW-106UB. I purchased two new USB Bluetooth Dongles, and haven't had an issue since. I've used the new dongles with Ubuntu 18.04 and 19.10.


The version was updated is 6.1.8-060108-generic . Previous was 5.15.Although I installed many bluetooth drivers/apps like blueman before, I dont know if they was necessary. Now the blue man manager is showing on tray as well the bluetooth of ubuntu configuration


I own a USB Dongle 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode). I am not able to scan devices. I plugged in the USB device in and out, restarted the my laptop, restarted the service and still will not be recognized by Wireshark or any other Bluetooth utility.


Most of cheap Bluetooth dongles from Aliexpress do not work natively in Linux. I have been looking the source code of Bluetooth Linux driver looking for this problem and I have found that it is because some of these dongles are blacklisted because they are using for malicious actions. Thus if you want to use one of these dongles you should remove this code which blacklists the dongle.


Jul 19 21:21:43 rpipro2 kernel: [348888.110797] usb 1-1.3.3: new full-speed USB device number 13 using dwc_otgJul 19 21:21:43 rpipro2 kernel: [348888.222799] usb 1-1.3.3: New USB device found, idVendor=0a12, idProduct=0001 Jul 19 21:21:43 rpipro2 kernel: [348888.222824] usb 1-1.3.3: New USB device strings: Mfr=0, Product=0, SerialNumber=0 Jul 19 21:21:43 rpipro2 kernel: [348888.297758] Bluetooth: Core ver 2.19 Jul 19 21:21:43 rpipro2 kernel: [348888.297884] NET: Registered protocol family 31 Jul 19 21:21:43 rpipro2 kernel: [348888.297896] Bluetooth: HCI device and connection manager initialized Jul 19 21:21:43 rpipro2 kernel: [348888.297928] Bluetooth: HCI socket layer initialized Jul 19 21:21:43 rpipro2 kernel: [348888.297945] Bluetooth: L2CAP socket layer initialized Jul 19 21:21:43 rpipro2 kernel: [348888.297990] Bluetooth: SCO socket layer initialized Jul 19 21:21:43 rpipro2 kernel: [348888.304784] usbcore: registered new interface driver btusb


Although the Linux system has detected and loaded the kernel modules (device drivers) to interface with the Bluetooth Radio, the Linux system is still unable to speak Bluetooth because there are no Bluetooth applications. In order to speak Bluetooth, the Linux system requires the Bluetooth protocol stack and applications.


Navigation: Linux Kernel Driver DataBase - web LKDDB: Main index - B index CONFIG_BT_HCIUSB: HCI USB driver (old version)(adsbygoogle = window.adsbygoogle []).push();General informationsThe Linux kernel configuration item CONFIG_BT_HCIUSB has multiple definitions:HCI USB driver (old version) found in drivers/bluetooth/KconfigThe configuration item CONFIG_BT_HCIUSB:


The 0a12:0001 part is the most important part, because it is the ID of the chipset running inside the Bluetooth adapter. So you can use this keyword on Google to find related information and users having similar issues with the Bluetooth adapter.


This is the first driver for the Xbox One Wireless Gamepad (which is shipped with the Xbox One S). I wrote it for astudent project at fortiss GmbH and it is fully functional but does only support the connection via Bluetooth asyet - more will follow.


As of SDL 2.0.12, SDL introduced a new HIDAPI which can read HID devices in raw mode, bypassing the drivers. Due tothe way SDL works, and because xpadneo exposes hidraw devices as user-readable, SDL may see wrong button mappingsbecause it may make wrong assumptions about the protocol mode of Xbox and compatible controllers. If you see wrongbutton mappings / missing buttons in SDL applications, or rumble does not work, you may need to turn off this behaviorby setting an environment variable in your profile: SDL_JOYSTICK_HIDAPI=0


This driver supports the Nintendo layout of those controllers to exposes them correctly as button A, B, X, and Yas labelled on the device. This is swapped compared to the original Xbox controller layout. However, this feature isnot enabled by default. If you want to use this feature, you have to add a quirk flag to the module options:


Breaking change: Users of previous versions of the driver may want to remove their custom SDL mappings. Fullsupport has been added for these controllers and broken mapping of previously versions no longer needs to beapplied. See also: SDL.


The driver supports switching between different profiles, either through emulation or by using the hardwareswitch that comes with some models. This switching can be done at any time even while in a game. The API forcustomizing each profile does not exist yet.


If you are asked to send debug info or want to fix bugs, follow the guidedisplayed when opening a new bug report.This has all the hints to get you started with debugging. You may also wantto increase the kernel debug level if your distribution sets it very low.Otherwise, the driver reports most incidents, quirks, and fixes to dmesg.


root@orangepiplus:# lsusbBus 002 Device 002: ID 05e3:0718 Genesys Logic, Inc. IDE/SATA AdapterBus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 001 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. HubBus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


If you could not find the exact driver for your hardware device or you aren't sure which driver is right one, we have a program that will detect your hardware specifications and identify the correct driver for your needs. Please click here to download.


mrogeriodf Could be an issue with your computer, in terms of drivers you have installed. Uninstall any drivers associated with that USB device or try booting into safe mode on your PC or use a secondary PC instead. You have the exact same Bluetooth dongle I have.


UGREENlsusbBus 001 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)idVendor 0x0a12 Cambridge Silicon Radio, LtdidProduct 0x0001 Bluetooth Dongle (HCI mode)


If your use case could work with an extension cable, then you might even look at an adapter based on the new mt7921au chipset (WiFi 6e). The driver is in 22.03... 7921u, however the firmware is in the driver 7921e so you either have to also install 7921e or manually install the firmware. There is a bug posted requesting the firmware be moved to common so this will likely be fixed at some point.


WARNING: While a libusb driver is installed, other programs/devices will not be able to use your Bluetooth device. This can be easily reverted in Windows Device Manager and instructions are provided below.


If you wish to return your Bluetooth drivers back to normal, start "Device Manager" and locate "libusbK" devices in the list. Right-click the device you wish to restore and select 'Uninstall Device'. Upon plugging it in next time, Windows will install the default Bluetooth driver and it will resume normal functions. NOTE: If you used the winUSB driver instead, it will be located under "Universal Serial Bus Devices." Same instructions apply otherwise.


Some users who wish to maintain use of their Bluetooth Device and use it in Dolphin without swapping drivers have opted to use usbdk. When Dolphin starts up, you will lose control of your Bluetooth Device and regain it when Dolphin shuts down. While this cuts down on the work you need to use your Bluetooth device across many controllers, usbdk has many bugs; the worst of which is that any ES_Launch will immediately crash/freeze the game due to usbdk losing control of the Bluetooth.


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