On Sun, 29 September 2013 "v1kt0p....@gmail.com" <v1kt0p....@gmail.com> wrote: > I have "Genesis to USB adapter" and two genesis gamepads. On windows it > is work correctly. On linux do not work "left" and "up" buttons on > D-pad, and two gamepads appear as one with double buttons. > At first I tried to write usb driver(usb_register), but when I connect > gamepad system choose usbhid driver not my. When I unplug gamepad system > call "probe" in my driver, but then immediately call "disconnect". Is > there a way to force the system to choose my driver first? > Than I tried to write hid driver(hid_register_driver), but "probe" is > not called. I can not find documentation describing how to make a > working driver for hid, it exists at all? > What is the correct way to write a driver for the gamepad? What am I > doing wrong?
You can have a look at all the drivers located under drivers/hid/ for how they do it. Two drivers that represent gamepads: hid-pl.c hid-saitek.c Depending on how your gamepad shows up when there are two pads connected you may need to register a second input device to send buttons from the first pad to first input device, buttons from second to the extra input device. A good start to find out what your device does is to enable debugging in your kernel and cat /sys/kernel/debug/hid/<your device>/events to determine what happens on button presses. You can then check how that output matches events sent from /dev/input/event* matching your device and determine if all that is needed is proper scancode translation of if more tuning is needed. Bruno -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
