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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) |
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!
Not right now, unfortunately. I will try to check this next weekend.