A fork/continuation of the original since the author has been away for a while. Supports kernels up to 6.15 with lots of other changes.
A fork/continuation of the original since the author has been away for a while. Supports kernels up to 6.15 with lots of other changes.
This isn’t a Bluetooth adapter.
That’s how little you know about the subject you’re trying to rant about.
What in the fuck are you even talking about?
PS5 is bluetooth, standard bluetooth, and wired uses both standard HID and standard usb audio, my point is: Why isn’t MSFT?
Also, since you clearly don’t know the first fucking thing you’re talking about:
Look at how stupid broken this is! You need drivers to use it over standard USB!
Everything about this design is broken, it should be kicked out of the kernel and MSFT should release firmware that actually implements HID like normal, non-stupid people.
8bitdo has exactly this, same dongle system and pairing and again, it works perfectly without any drivers at all, because they’re not morons.
We are talking about a driver for the Xbox One wireless adapter.
Microsoft never submitted a kernel driver for this, it’s a third party module. It’s not Bluetooth - it’s WiFi, using a proprietary blob for authentication.
Not a single one of your claims in this entire thread have been correct.
You’ve literally missed my whole point.
Playstation link is this exact same thing, and btw, both controllers are dual-mode bluetooth and “high-speed wireless interface”, which is basically wifi or wifi-direct or some proprietary variant.
My point is, why isn’t it like Playstation link which just presents as HID devices and usb-audio devices, without a driver at all? Same low-latency, they even do LDAC.
The 8bitdo version is easier to implement because it’s one dongle per controller. The Xbox dongle supports eight controllers per dongle. This complicates things; I assume they didn’t want to emulate an eight-port USB hub on the dongle.
You can use BT, but there’s a reason 8bitdo has a dongle as well: BT has worse latency, I assume due to protocol overhead.
And at least Xbox controllers are cross-compatible. You can’t use a DS4 on a PS5, even if you’re playing a PS4 game.
https://github.com/abcminiuser/lufa
Literally a kid did this in high school, this is without hardware support, just GPIO, but he also implemented the full stack on avrusbs and cortex-ms, and one thing he emulated was multiple devices on a hub.
Well, yeah, obviously it can be done. What’s the latency, though? A hub’s muxing alternates between packets from different devices, but even USB 1.1 has 64B packets, leaving 64b per controller if you report them all in one packet. That’s 15 digital buttons, 6b per axis, and 13b left over for routing.
However, I can’t think of a way to get the computer to decode one 64B packet into eight separate HID polls without a custom driver. If you use a hub, you’re limited to 8kHz total by the spec, but many EHCI controllers limit that to 1kHz. 125Hz per player is not great.
I can’t confirm that this is the reason or that there isn’t a different way around the restriction, but it seems likely from what I know of USB hubs.
TL;DR: with a custom driver, you can report all controllers on all USB polls rather than each taking up a whole interval, giving you 8x the polling rate compared to an emulated hub with 8 standard HIDs.
Firstly, it’s not a real hub, it’s an emulated hub, and you can do that emulating everything as USB 2.0.
Secondly you can have multiple hid interface endpoints on a single device.
Thirdly, you wouldn’t be polling, these would be hid interrupt urbs, and you can storm them 1 per micropacket if you want, they just show up in the ehci buffers.
Finally, no human is overflowing the hid interface like this, not even 8 of them.