Heyho I bought a Mad Catz Fightstick TE2 for Xbox One because I wanted to play some fighting games on Linux. I chose this stick because it has gotten good reviews and I assumed that the Kernel driver should work because there are already drivers for Xbox One controllers in drivers/input/joystick/xpad.c. It turns out that the driver does not work and dmesg just shows [12293.077720] usb 1-1.2.1: new full-speed USB device number 9 using ehci-pci when plugging it in. Simply adding the line { 0x0738, 0x4a01, "Mad Catz FightStick TE 2", 0, XTYPE_XBOXONE }, (where the two Hex values are VENDOR_ID and PRODUCT_ID) to xpad_device[] in xpad.c does not help either (which I naively hoped it would). I realized that the stick does not conform to the USB HID interface after looking more closely at the lsusb -v output (pasted below). Bus 001 Device 007: ID 0738:4a01 Mad Catz, Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 idVendor 0x0738 Mad Catz, Inc. idProduct 0x4a01 bcdDevice 0.34 iManufacturer 1 MADCATZ iProduct 2 FIGHTSTICK iSerial 3 0000BCA2F0E774D2 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 200mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 71 bInterfaceProtocol 208 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 4 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 4 Device Status: 0x0002 (Bus Powered) Remote Wakeup Enabled The Fightstick seems to use a "Vendor Specific Class" and not the HID interface. The device is relatively simple having only about 10 buttons and a digital stick and the Xbox One driver for Windows works for it so xpad.c should be able to deal with it I assume. Worst case I would have to reverse- engineer the USB protocol it uses on my Window installation though I hope that will not be necessary given that the much more sophisticated Xbox One controller works on Linux already. What I would like to know is if it is possible to use the xpad.c infrastructure in this case and maybe some pointers on where to go from here (I have looked at [0],[1] and [2] but want to check if somebody has dealt with a similar case already and can give me a hint). Thanks! Cheers, Silvan [0] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documen... [1] https://lwn.net/Kernel/LDD3/ [2] http://matthias.vallentin.net/blog/2007/04/writing-a-linux-kernel-driver-for...