Re: [AD] Linux joysytick and force feedback

[Peter Wang <novalazy@xxxxxxxxxx>]

On Wed, 26 Jun 2013 05:24:42 +0200, Beoran <beoran@xxxxxxxxxx> wrote:
> Op 26-06-13 02:22, Peter Wang schreef:
> > On Tue, 25 Jun 2013 16:36:30 +0200, Beoran<beoran@xxxxxxxxxx>  wrote:
> >> I just tried my PS3 controller and that works OK too. What brand of
> >> joystick are you using?
> >> Oh and I have a 64 bits system, I hope that's not causing any problems...
> > It was picking up my wireless mouse (the USB receiver) as joystick 0.
> >
> > Peter
> In the joystick detection code, I assume that anything that has 
> absolute axes and buttons
> is a joystick. But apparently that gives false positives. Could you 
> please use  evtest-capture
> on your mouse so I can see what is different and how I can avoid such 
> false positives?
> Thank you!
> 
> B.

I've attached the output of evtest (not evtest-capture, let me know if
you need it).  The mouse somehow has two input device files associated
with it, /dev/input/event2 and /dev/input/event3.
event3 makes no sense, and has an absolute axis which would be tripping
up your heuristics.  It seems the same thing occurs with other mice[1].

I suggest you rip off SDL's equivalent function, which has a few more
checks to it.

Peter

[1] https://code.google.com/p/chromium/issues/detail?id=213536

Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x46d product 0xc52f version 0x111
Input device name: "Logitech USB Receiver"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 1 (KEY_ESC)
    Event code 28 (KEY_ENTER)
    Event code 74 (KEY_KPMINUS)
    Event code 78 (KEY_KPPLUS)
    Event code 103 (KEY_UP)
    Event code 105 (KEY_LEFT)
    Event code 106 (KEY_RIGHT)
    Event code 108 (KEY_DOWN)
    Event code 110 (KEY_INSERT)
    Event code 111 (KEY_DELETE)
    Event code 113 (KEY_MUTE)
    Event code 114 (KEY_VOLUMEDOWN)
    Event code 115 (KEY_VOLUMEUP)
    Event code 116 (KEY_POWER)
    Event code 119 (KEY_PAUSE)
    Event code 128 (KEY_STOP)
    Event code 130 (KEY_PROPS)
    Event code 131 (KEY_UNDO)
    Event code 133 (KEY_COPY)
    Event code 134 (KEY_OPEN)
    Event code 135 (KEY_PASTE)
    Event code 136 (KEY_FIND)
    Event code 137 (KEY_CUT)
    Event code 138 (KEY_HELP)
    Event code 139 (KEY_MENU)
    Event code 140 (KEY_CALC)
    Event code 142 (KEY_SLEEP)
    Event code 144 (KEY_FILE)
    Event code 150 (KEY_WWW)
    Event code 152 (KEY_SCREENLOCK)
    Event code 155 (KEY_MAIL)
    Event code 156 (KEY_BOOKMARKS)
    Event code 158 (KEY_BACK)
    Event code 159 (KEY_FORWARD)
    Event code 161 (KEY_EJECTCD)
    Event code 163 (KEY_NEXTSONG)
    Event code 164 (KEY_PLAYPAUSE)
    Event code 165 (KEY_PREVIOUSSONG)
    Event code 166 (KEY_STOPCD)
    Event code 167 (KEY_RECORD)
    Event code 168 (KEY_REWIND)
    Event code 169 (KEY_PHONE)
    Event code 171 (KEY_CONFIG)
    Event code 172 (KEY_HOMEPAGE)
    Event code 173 (KEY_REFRESH)
    Event code 174 (KEY_EXIT)
    Event code 176 (KEY_EDIT)
    Event code 177 (KEY_SCROLLUP)
    Event code 178 (KEY_SCROLLDOWN)
    Event code 181 (KEY_NEW)
    Event code 182 (KEY_REDO)
    Event code 206 (KEY_CLOSE)
    Event code 207 (KEY_PLAY)
    Event code 208 (KEY_FASTFORWARD)
    Event code 209 (KEY_BASSBOOST)
    Event code 210 (KEY_PRINT)
    Event code 212 (KEY_CAMERA)
    Event code 216 (KEY_CHAT)
    Event code 217 (KEY_SEARCH)
    Event code 219 (KEY_FINANCE)
    Event code 223 (KEY_CANCEL)
    Event code 228 (KEY_KBDILLUMTOGGLE)
    Event code 231 (KEY_SEND)
    Event code 232 (KEY_REPLY)
    Event code 233 (KEY_FORWARDMAIL)
    Event code 234 (KEY_SAVE)
    Event code 235 (KEY_DOCUMENTS)
    Event code 241 (KEY_VIDEO_NEXT)
    Event code 256 (BTN_0)
    Event code 353 (KEY_SELECT)
    Event code 354 (KEY_GOTO)
    Event code 358 (KEY_INFO)
    Event code 362 (KEY_PROGRAM)
    Event code 366 (KEY_PVR)
    Event code 370 (KEY_SUBTITLE)
    Event code 372 (KEY_ZOOM)
    Event code 374 (KEY_KEYBOARD)
    Event code 376 (KEY_PC)
    Event code 377 (KEY_TV)
    Event code 378 (KEY_TV2)
    Event code 379 (KEY_VCR)
    Event code 380 (KEY_VCR2)
    Event code 381 (KEY_SAT)
    Event code 383 (KEY_CD)
    Event code 384 (KEY_TAPE)
    Event code 386 (KEY_TUNER)
    Event code 387 (KEY_PLAYER)
    Event code 389 (KEY_DVD)
    Event code 392 (KEY_AUDIO)
    Event code 393 (KEY_VIDEO)
    Event code 396 (KEY_MEMO)
    Event code 397 (KEY_CALENDAR)
    Event code 398 (KEY_RED)
    Event code 399 (KEY_GREEN)
    Event code 400 (KEY_YELLOW)
    Event code 401 (KEY_BLUE)
    Event code 402 (KEY_CHANNELUP)
    Event code 403 (KEY_CHANNELDOWN)
    Event code 405 (KEY_LAST)
    Event code 408 (KEY_RESTART)
    Event code 409 (KEY_SLOW)
    Event code 410 (KEY_SHUFFLE)
    Event code 416 (KEY_VIDEOPHONE)
    Event code 417 (KEY_GAMES)
    Event code 418 (KEY_ZOOMIN)
    Event code 419 (KEY_ZOOMOUT)
    Event code 420 (KEY_ZOOMRESET)
    Event code 421 (KEY_WORDPROCESSOR)
    Event code 422 (KEY_EDITOR)
    Event code 423 (KEY_SPREADSHEET)
    Event code 424 (KEY_GRAPHICSEDITOR)
    Event code 425 (KEY_PRESENTATION)
    Event code 426 (KEY_DATABASE)
    Event code 427 (KEY_NEWS)
    Event code 428 (KEY_VOICEMAIL)
    Event code 429 (KEY_ADDRESSBOOK)
    Event code 430 (KEY_MESSENGER)
    Event code 432 (KEY_SPELLCHECK)
    Event code 433 (KEY_LOGOFF)
    Event code 439 (KEY_MEDIA_REPEAT)
    Event code 442 (?)
  Event type 2 (EV_REL)
    Event code 6 (REL_HWHEEL)
  Event type 3 (EV_ABS)
    Event code 32 (ABS_VOLUME)
      Value      0
      Min        1
      Max      652
  Event type 4 (EV_MSC)
    Event code 4 (MSC_SCAN)
Properties:
Testing ... (interrupt to exit)