The patch [1] [2] was intended to prevent duplicate connection of one piece of hardware via bluetooth and usb at the same time. But the code is too restrictive and forbids the connection of two identical pieces of hardware (Future Max Dance Mat) on different usb ports too. The second device is fully setup and then dropped by the sony driver. Below is my dmesg output from a current 4.4.0 kernel and from the last working 3.14.56 from here [3] dmesg output with kernel 4.4.0 [12125.194368] usb 2-1.2: new full-speed USB device number 3 using ehci-pci [12125.290910] usb 2-1.2: New USB device found, idVendor=22ba, idProduct=0109 [12125.290917] usb 2-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [12125.290922] usb 2-1.2: Product: Generic USB Hub [12125.290925] usb 2-1.2: Manufacturer: Rui Da [12125.291508] hub 2-1.2:1.0: USB hub found [12125.291768] hub 2-1.2:1.0: 3 ports detected [12125.562392] usb 2-1.2.1: new full-speed USB device number 4 using ehci-pci [12125.657451] usb 2-1.2.1: New USB device found, idVendor=054c, idProduct=0268 [12125.657458] usb 2-1.2.1: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [12125.657463] usb 2-1.2.1: Product: FutureMax Dance Mat [12126.341649] hidraw: raw HID events driver (C) Jiri Kosina [12126.348524] usbcore: registered new interface driver usbhid [12126.348528] usbhid: USB HID core driver [12126.360569] input: FutureMax Dance Mat as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2.1/2-1.2.1:1.0/0003:054C:0268.0001/input/input16 [12126.416043] sony 0003:054C:0268.0001: input,hiddev0,hidraw0: USB HID v1.11 Joystick [FutureMax Dance Mat] on usb-0000:00:1d.0-1.2.1/input0 [12138.967099] usb 2-1.5: new full-speed USB device number 5 using ehci-pci [12139.063843] usb 2-1.5: New USB device found, idVendor=22ba, idProduct=0109 [12139.063851] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [12139.063855] usb 2-1.5: Product: Generic USB Hub [12139.063859] usb 2-1.5: Manufacturer: Rui Da [12139.064433] hub 2-1.5:1.0: USB hub found [12139.064686] hub 2-1.5:1.0: 3 ports detected [12139.335121] usb 2-1.5.1: new full-speed USB device number 6 using ehci-pci [12139.430400] usb 2-1.5.1: New USB device found, idVendor=054c, idProduct=0268 [12139.430407] usb 2-1.5.1: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [12139.430412] usb 2-1.5.1: Product: FutureMax Dance Mat [12139.434055] input: FutureMax Dance Mat as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5.1/2-1.5.1:1.0/0003:054C:0268.0002/input/input17 [12139.434496] sony 0003:054C:0268.0002: input,hiddev0,hidraw1: USB HID v1.11 Joystick [FutureMax Dance Mat] on usb-0000:00:1d.0-1.5.1/input0 [12139.437030] sony 0003:054C:0268.0002: controller with MAC address 00:1b:fb:00:00:00 already connected [12139.519506] sony: probe of 0003:054C:0268.0002 failed with error -17 dmesg output with kernel 3.14.56 [ 196.032269] usb 2-1.1: new full-speed USB device number 3 using ehci-pci [ 196.129199] usb 2-1.1: New USB device found, idVendor=22ba, idProduct=0109 [ 196.129205] usb 2-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 196.129209] usb 2-1.1: Product: Generic USB Hub [ 196.129214] usb 2-1.1: Manufacturer: Rui Da [ 196.130461] hub 2-1.1:1.0: USB hub found [ 196.131299] hub 2-1.1:1.0: 3 ports detected [ 196.404621] usb 2-1.1.1: new full-speed USB device number 4 using ehci-pci [ 196.499645] usb 2-1.1.1: New USB device found, idVendor=054c, idProduct=0268 [ 196.499652] usb 2-1.1.1: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [ 196.499656] usb 2-1.1.1: Product: FutureMax Dance Mat [ 197.179980] hidraw: raw HID events driver (C) Jiri Kosina [ 197.185726] usbcore: registered new interface driver usbhid [ 197.185732] usbhid: USB HID core driver [ 197.197779] input: FutureMax Dance Mat as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1.1/2-1.1.1:1.0/0003:054C:0268.0001/input/input16 [ 197.198194] sony 0003:054C:0268.0001: input,hiddev0,hidraw0: USB HID v1.11 Joystick [FutureMax Dance Mat] on usb-0000:00:1d.0-1.1.1/input0 [ 231.062851] usb 2-1.2: new full-speed USB device number 5 using ehci-pci [ 231.160153] usb 2-1.2: New USB device found, idVendor=22ba, idProduct=0109 [ 231.160159] usb 2-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 231.160163] usb 2-1.2: Product: Generic USB Hub [ 231.160167] usb 2-1.2: Manufacturer: Rui Da [ 231.160782] hub 2-1.2:1.0: USB hub found [ 231.161087] hub 2-1.2:1.0: 3 ports detected [ 231.431179] usb 2-1.2.1: new full-speed USB device number 6 using ehci-pci [ 231.526072] usb 2-1.2.1: New USB device found, idVendor=054c, idProduct=0268 [ 231.526078] usb 2-1.2.1: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [ 231.526083] usb 2-1.2.1: Product: FutureMax Dance Mat [ 231.528057] input: FutureMax Dance Mat as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2.1/2-1.2.1:1.0/0003:054C:0268.0002/input/input17 [ 231.528452] sony 0003:054C:0268.0002: input,hiddev0,hidraw1: USB HID v1.11 Joystick [FutureMax Dance Mat] on usb-0000:00:1d.0-1.2.1/input0 Please send answers and requests also directly to me: singu.b@xxxxxxxxx [1] https://www.spinics.net/lists/linux-input/msg29895.html [2] https://github.com/torvalds/linux/commit/d2d782fccee4f699a35e2d0cdbb2b19bdaec95a4 [3] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14.56-utopic/ -- 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
