On Wed, Jan 06, 2021 at 10:48:58PM +0100, Marcus Glocker wrote:

[...]

> The implementation as such looks fine to me.
> But I quickly gave the diff a spin before on amd64 using my PS
> controller, and the result is not what I would expect.
> 
> With uhid, I can access the controller on /dev/uhid6.  The attach looks
> like this:
> 
> imac /bsd: uaudio0 at uhub4 port 4 configuration 1 interface 1 "Sony
> Interactive Entertainment Wireless Controller" rev 2.00/1.00 addr 6
> imac /bsd: uaudio0: class v1, full-speed, sync, channels: 2 play, 1 rec,
> 4 ctls
> imac /bsd: audio1 at uaudio0
> imac /bsd: uhidev6 at uhub4 port 4 configuration 1 interface 3 "Sony
> Interactive Entertainment Wireless Controller" rev 2.00/1.00 addr 6
> imac /bsd: uhidev6: iclass 3/0, 180 report ids
> imac /bsd: uhid6 at uhidev6 reportid 1: input=63, output=0, feature=0

[...]

> imac /bsd: uhid50 at uhidev6 reportid 179: input=0, output=0, feature=63
> imac /bsd: uhid51 at uhidev6 reportid 180: input=0, output=0, feature=63
> 
> ujoy instead attached to previous uhid51, and there it is of no use
> obviously.  I still can access the controller through uhid6.  The attach
> with ujoy looks like this:
> 
> imac /bsd: uaudio0 at uhub4 port 4 configuration 1 interface 1 "Sony
> Interactive Entertainment Wireless Controller" rev 2.00/1.00 addr 6
> imac /bsd: uaudio0: class v1, full-speed, sync, channels: 2 play, 1 rec,
> 4 ctls
> imac /bsd: audio1 at uaudio0
> imac /bsd: uhidev6 at uhub4 port 4 configuration 1 interface 3 "Sony
> Interactive Entertainment Wireless Controller" rev 2.00/1.00 addr 6
> imac /bsd: uhidev6: iclass 3/0, 180 report ids

[...]

> imac /bsd: uhid50 at uhidev6 reportid 179: input=0, output=0, feature=63
> imac /bsd: ujoy0 at uhidev6 reportid 180: input=0, output=0, feature=63
> 
> I haven't analyzed yet what happens in the code.
> I can provide an lsusb of the controller if it's more obvious to you.

I have heard from others who tried the diff that the PS4 controller is
causing problems with the way it attaches. I ordered one to trial-and-
error this myself at home. Could you share output of lsusb -vv? Thanks
for giving it a try!

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