linux-kernel - Re: [PATCH 1/2] SOUND: kill gameport bits

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Message-ID: <CAMuHMdXctPvoJGOOVPA+a=ZGqYHsttTw3eGNU1sNGRcidshF3A@mail.gmail.com>
Date:	Thu, 21 Aug 2014 09:16:10 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	Takashi Iwai <tiwai@...e.de>, Andreas Mohr <andi@...as.de>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Vojtech Pavlik <vojtech@...e.cz>, Jiri Kosina <jkosina@...e.cz>
Subject: Re: [PATCH 1/2] SOUND: kill gameport bits

Hi Dmitry,

On Wed, Aug 20, 2014 at 4:49 PM, Dmitry Torokhov
<dmitry.torokhov@...il.com> wrote:
> On Wed, Aug 20, 2014 at 02:15:30PM +0200, Takashi Iwai wrote:
>> At Wed, 20 Aug 2014 09:05:58 +0200,
>> Takashi Iwai wrote:
>> > Well, it worked on my test machine a year ago or so.  Maybe I had a
>> > good luck.
>>
>> FYI, now I tested again an analog joystick on SB Live put on a Dell
>> IvyBridge desktop with 3.17-rc1 x86-64 kernel, and it worked fine as
>> is.
>>
>> So it's not that broken.
>
> That's probably because in your system TSCs are stable when switching CPU
> frequency. Earlier systems had bunch of issues there IIRC.

>From the success stories above, it seems gameport doesn't work on only
a limited number of systems.

Perhaps the subsystem can fail with a big fat warning at runtime if such
a system is detected?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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