** Changed in: linux (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1511855
Title: Some Sony Dualshock 4 controllers do not work in kernel 3.15+ Status in linux package in Ubuntu: Incomplete Bug description: I'm testing in Ubuntu 15.10 with kernel 4.2.0-16.19 but this bug report actually applies to ALL kernels starting at 3.15 until the current 4.3rc7 and is not limited to Ubuntu. I have a brand new Sony DualShock 4 that seems to use a slightly different protocol than the hid-sony driver expects. I'm not sure why this controller is different. Maybe updated firmware from Sony or maybe because it has never been connected to a PS4. Whatever the case, the device descriptor size is different from what hid-sony expects and because of that it does not remap the descriptor table as required. This causes only the trackpad to function (the trackpad uses a different code path) and none of the other controls work. So basically the controller does not work at all. I have created a patch that fixes it. I have only tested the patch against kernel 4.2 and 4.3 but it's simple enough that it should be trivially portable to any 3.15+ kernel. The attached patch is based against the Ubuntu mainline-crack git v4.2 kernel. I posted to the LKML asking if the descriptor size check was even necessary but never got a response so I left it in. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1511855/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
