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| #!/usr/bin/env python3 | |
| # Simple tool to switch the Creative BT-W5 Bluetooth Audio dongle between AptX Adaptive **Low Latency** or **High Quality** mode. | |
| # Of course, only works with Bluetooth headphones that support AptX Adaptive, such as the Tranya X3 | |
| # Reverse engineered based on communication between Creative's desktop app for Windows and the BT-W5. | |
| # Might also accidentally overwrite other settings as a whole config data array is sent without taking into account the existing config. | |
| # | |
| # Usage: sudo ./btw5-switch.py ll (for low-latency mode) | |
| # sudo ./btw5-switch.py hq (for high-quality mode) | |
| # | |
| # requires either sudo or adjusting the permissions on the /dev/bus/usb/... device | |
| import sys | |
| import usb.core # requires PyUSB (e.g. via `apt install python3-usb` on Debian) | |
| dev = usb.core.find(idVendor=0x041e, idProduct=0x3130) | |
| if dev is None: | |
| raise ValueError('Device not found') | |
| cfg = dev[0] | |
| intf = cfg[(0, 0)] | |
| ep = intf[0] | |
| i = intf.bInterfaceNumber | |
| if dev.is_kernel_driver_active(i): | |
| dev.detach_kernel_driver(i) | |
| data_hq = [0x03, 0x5a, 0x6b, 0x03, 0x0a, 0x03, 0x40] # HQ | |
| data_ll = [0x03, 0x5a, 0x6b, 0x03, 0x0a, 0x03, 0x20] # LL | |
| if len(sys.argv) > 1 and sys.argv[1] == "hq": | |
| data = data_hq | |
| print("Enabling AptX Adaptive High Quality mode") | |
| else: | |
| data = data_ll | |
| print("Enabling AptX Adaptive Low Latency mode") | |
| data += [0x00] * (65 - len(data)) | |
| result = dev.ctrl_transfer(0x21, 0x09, wValue=0x203, wIndex=0x00, data_or_wLength=data) |
Do you know the data of the "call mode" with the red LED and could maybe add it here?
Not right now, unfortunately. I will try to check this next weekend.
How did you reverse engineer this? Maybe I can help you out to extend it!
Sorry for the late reply and thanks for the offer. I don't own a BT-W5 at the moment (it belongs to my son), so I have limited opportunity to refine the script. However, I have logged and annotated the USB traffic for switching to/from HFP mode.
I have also added some limited information on how to add support for it and other features to the script.
It should be relatively straightforward - but I'm not sure when I'll find the time to implement/test it.
Feel free to try it!
No stress! Thanks a lot for your commit! If I have some sparetime I will try to find out more and hopefully can contribute somethingwith value here!
By any chance - can this work on windows? :)
By any chance - can this work on windows? :)
It should, as long as you install pyusb and libusb (see installation instructions at https://github.com/pyusb/pyusb).
Haven't tested it there, however.
Why would you want to do this, given that there is an official app for Windows?
My goal is to make an auto-switch so when you start some game, it will auto switch to LL, and after exit back to HQ.. And also i would love to make some hotkeys fot it..
I was trying to convert the script to power shell, but it is such a pain. I will try the python and let you know.. Ty :)
Works beautifully! I wonder if I could extend this work to support managing paired devices too...
Thank you so much for sharing!
Hey, love your script, as it helps me out to get this thing working on Linux without an app. Do you know the data of the "call mode" with the red LED and could maybe add it here? That would be pretty neat!
Regards atomique