On Tue, Aug 19, 2014 at 10:18:15PM -0700, Dmitry Torokhov wrote: > Are you actively testing gameport interfaces with real joysticks/gamepads on > these cards? And what software is still in use that runs on these old boxes > (with mainline kernel)? I still do have a huge box of gameport hardware in my office, it's just that I haven't opened it for a number of years. However, if this thread spurred enough interest in gameport devices, I would be willing to open it and do the needed fixes. If not, I think dropping makes sense. I still would shed a tear for all those weird devices in the box, and possibly design an ATMega-based USB<->Gameport adapter that actually works and supports even the digital joysticks. > > Also, I'm left wondering why e.g. my Athlon XP system (a very popular > > choice for longer times) would be affected by Cpufreq... > > And there are no details on how exactly cpufreq is a problem or how this > > timing issue could be fixed... > > If you take a look at gameport_measure_speed() in gameport.c you will see that > it counts cycles for timing, which obviously does not work that well when CPU > frequency changes. > > The bugs have been opened in bugzilla/reported on lists ages ago but nobody > stepped up to fix that. It wouldn't be hard to fix: That code was developed when the timing infrastructure in the kernel was non-existent, making use of it today would make things a lot easier. > > The obvious workaround for such an ensuing dearth of hardware support > > could be USB 15-pin gameport adapters - but are they even supported on > > Linux? Haven't seen info on this... > > And even if supported, these adapters (at least the non-perfect ones, as > > can be seen from reviews on a well-known online shop site) are said to > > be hit-or-miss. > > > > http://www.flightsim.com/vbfs/showthread.php?238938-joystick-GamePort-to-USB-adapter-question > > http://reviews.thesource.ca/9026/2600164/nexxtech-usb-gameport-adapter-reviews/reviews.htm > > > > They have better chance of being supported ;) I had a couple a few years back > and they did work for me. They do work for analog joysticks if you don't want any extended functionality. I have a couple in said box. -- Vojtech Pavlik Director SuSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
