@Alexander, @Taimur: thanks to your comments and efforts, I've managed to make a very basic HID driver for this keyboard. I have tested it against kernel 4.15.0-23-generic with success. Please remove "hid_generic" before loading this module and plugging the keyboard in, so that hid_generic doesn't take on the device.
I took some parts from the aziokbd.c driver (by Colin Svingen; https://bitbucket.org/Swoogan/aziokbd/src/f3611717bce078056634bc2312dba2787a433401/aziokbd.c?fileviewer =file-view-default) and made a minimal mapping table between the special keys G1-G6 to F1-F5 and SPACE. this way, the rightmost part of the spacebar (which is labelled as G6) also works as the SPACE key. This is my very first implementation of anything related to kernel code, so expect it to be ugly, buggy and incorrect. Actually, I've found that the kernel oops with a stack trace when the device is disconnected. This is not a problem if you're using the keyboard as usual, but if you're unplugging it (as when debugging with a VM, for example), your machine/VM will become unstable. I hope somebody with better understanding of USB and kernel driver programming will take it and make something good out of this code. If you are interested in evolving this driver and you need me to send you keycodes/debugging output, don't hesitate to contact me. ** Attachment added: "Workaround driver for Cougar 500k keyboard bug" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1511511/+attachment/5153716/+files/cougar-500k-0.4.tgz -- 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/1511511 Title: USB keyboard stops working after pressing extended key Status in linux package in Ubuntu: Confirmed Bug description: USB keyboard Cougar K500 gaming keyboard has some additional extended keys, all of them making the keyboard stop responding if pressed under linux. The device is recovered only by unplugging the USB and plugging it again. The keyboard has been tested under Ubuntu 14.04.3 LTS, Ubuntu 15.04 and Ubuntu 15.10 (the latter running as virtualbox guest). All tests failed with exactly the same behaviour. USB ID is: "060b:500a Solid Year". ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-16-generic 4.2.0-16.19 [modified: boot/vmlinuz-4.2.0-16-generic] ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 ApportVersion: 2.19.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: pinfli 1055 F.... pulseaudio Date: Thu Oct 29 19:33:23 2015 HibernationDevice: RESUME=UUID=f68f4b91-ea68-4e4b-9a10-8ed5bca2efbe InstallationDate: Installed on 2015-10-24 (5 days ago) InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Release amd64 (20151021) IwConfig: enp0s3 no wireless extensions. lo no wireless extensions. Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 060b:500a Solid Year Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: innotek GmbH VirtualBox ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=523dfd8b-b825-47e3-a116-cb85f901386c ro quiet splash PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.2.0-16-generic N/A linux-backports-modules-4.2.0-16-generic N/A linux-firmware 1.149 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1511511/+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
