Linux

如何在核心 2.6.34 - 64 位中啟用力回饋?

  • January 18, 2012

輪子是Logitech driving force DFGT。該平台:

linux-dopx:/home/anisha/ # cat /etc/issue && uname -a 
Welcome to openSUSE 11.3 "Teal" - Kernel \r (\l).
Linux linux-dopx 2.6.34-12-desktop #1 SMP PREEMPT 2010-06-29 02:39:08 +0200 x86_64 x86_64 x86_64 GNU/Linux

要檢查我所做的力回饋:

linux-dopx:/home/anisha/ # fftest /dev/input/event4
Force feedback test program.
HOLD FIRMLY YOUR WHEEL OR JOYSTICK TO PREVENT DAMAGES

Device /dev/input/event4 opened
Axes query:
Effects:
Number of simultaneous effects: 0
Upload effects[0]: Function not implemented
Upload effects[1]: Function not implemented
Upload effects[2]: Function not implemented
Upload effects[3]: Function not implemented
Upload effects[4]: Function not implemented
Upload effects[5]: Function not implemented
Enter effect number, -1 to exit

fftest 失敗並Function not implemented顯示消息。

通過 /dev/input/ 中的 event4 和 js0 文件檢測到輪子

# cat /proc/bus/input/devices
shows:
I: Bus=0003 Vendor=046d Product=c29a Version=0111
N: Name="Driving Force GT"
P: Phys=usb-0000:00:1d.3-1/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.3/usb5/5-1/5-1:1.0/input/input7
U: Uniq=
H: Handlers=event4 js0
B: EV=1b
B: KEY=1f0000 0 0 0 0 0 0 ffff00000000 0 0 0 0
B: ABS=30007
B: MSC=10

如何應對?不,我沒有執行任何遊戲。我只是想將這些效果應用到我的輪子上。

我什至嘗試過modprobe hid-logitechmodprobe hid他們沒有幫助。

請幫忙。

  • 我用文件中的標籤替換LOGITECH_FFLOGIWHEELS_FF標籤 /usr/src/linux-2.6.34-12/drivers/hid/Kconfig
  • default y如下圖設置:
config LOGIWHEELS_FF  
    bool "Logitech force feedback support"  
    depends on HID_LOGITECH  
    default y  
    select INPUT_FF_MEMLESS  
    help  
      Say Y here if you have one of these devices:  
      -Logitech WingMan Cordless RumblePad  
      -Logitech WingMan Cordless RumblePad 2  
      -Logitech WingMan Force 3D  
      -Logitech Formula Force EX  
      -Logitech WingMan Formula Force GP  
      -Logitech MOMO Force wheel  

      and if you want to enable force feedback for them.
      Note: if you say N here, this device will still be supported, but without
        force feedback

如下圖fftest所示,恆力工作。

linux-dopx:/home/anisha/ # fftest /dev/input/event4
Force feedback test program.
HOLD FIRMLY YOUR WHEEL OR JOYSTICK TO PREVENT DAMAGES

Device /dev/input/event4 opened
Axes query: 
Effects: Constant 
Number of simultaneous effects: 16
Upload effects[0]: Invalid argument
Upload effects[2]: Invalid argument
Upload effects[3]: Invalid argument
Upload effects[4]: Invalid argument
Upload effects[5]: Invalid argument
Enter effect number, -1 to exit
1
Now Playing: Constant Force
Enter effect number, -1 to exit

感謝:來自linux-input郵件列表的Simon 。http://www.spinics.net/lists/linux-input/msg19084.html

一些使用者報告說測試 /dev/input/eventX,在 /dev/input/js0 之後是他們的關鍵。

另一個嘗試了所有可能的 /dev/input/eventX 並最終找到了一個可行的。

但是這個操縱桿很可能沒有被 Linux 很好地支持。在vdrift wiki上,他們展示瞭如何製作快速更新檔以獲得 G25 作品。由於您的 Suse 核心已經辨識了它的名稱,因此您不需要這樣做。您還可以查看您的 dmesg 並查看是否在 Suse 核心中啟動了強制回饋,就像現在在 Ubuntu 中一樣

引用自:https://unix.stackexchange.com/questions/29284