STRAFE non-RGB: "Unable to read endpoint count from udev"

[Sycocylin]

Hi, I need help. My keyboard was working fine after a restart but I switched back to windows for a bit and now my keyboard is unrecognized and no imputs work exept for in the BIOS.

[tatokis]

OS? Does ckb say anything? Did you upgrade the firmware while on windows?

[Xcrysdale]

Hey sorry to hijack this thread but I've been experiencing the same issue using the Corsair Strafe Mechanical Keyboard, whenever I restart Ubuntu it is no longer detected and I need to reinstall the driver and restart in order to fix the issue. It could possibly be something to do with my Ubuntu install but if you have any insight please help me haha. To clarify I've also tried switching the ports, re running the software, and replugging back in to no avail.

[tatokis]

Does it say not detected or is the daemon not running?
try sudo service ckb-daemon restart
and if it throws an error, send back the output of sudo service ckb-daemon status

[Xcrysdale]

Alright I ran the sudo service check and it's running for sure. I'm coming to the realization that I didn't correctly configure my dual boot and having both Windows 10 and Ubuntu running off the same drive means I'm unable to access the OS hard drive because Windows Hibernates it after Logging out. To me it seems like the issue is the software tries to Install itself but can't access the directories (neither can I) so that would explain why it occasionally works after restarting. I'll be looking into how to stop Windows from locking me out of my drive but if you had any insight or next step that would also be greatly appreciated. Thanks for you help!

Edit: I'm an idiot I just need to completely shut down Windows and not quick restart it :P
Meaning the software works but I still need to fgure out how to access my file haha.

Logs If You're Interested:

Loaded: loaded (/usr/lib/systemd/system/ckb-daemon.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2017-04-29 12:00:46 PDT; 30s ago
Main PID: 4208 (ckb-daemon)
CGroup: /system.slice/ckb-daemon.service
└─4208 /usr/bin/ckb-daemon

Apr 29 12:00:46 xcrysdale-MS-7917 systemd[1]: Started Corsair Keyboard Daemon.
Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: ckb: Corsair RGB driver beta-v0.2.6
Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: [I] Root controller ready at /dev/input/ckb0
Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: [I] Connecting at /dev/input/ckb1
Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: [W] os_setupusb (usb_linux.c:293): Unable to read endpoint count from udev, assuming 4...
Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: [E] os_setupusb (usb_linux.c:296): Failed to claim interfaces: No such file or directory
Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: [I] Disconnecting /dev/input/ckb1
Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: [I] Removed device path /dev/input/ckb1
~

[frickler24]

@Xcrysdale This does not look good:

os_setupusb (usb_linux.c:293): Unable to read endpoint count from udev, assuming 4...
Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: [E] os_setupusb (usb_linux.c:296): Failed to claim interfaces: No such file or directory

The message means that there is a problem to identify the amount of endpoints available from your device.

Could you please post the content of the following files:
/dev/input/ckb0/ all files except pipes if exist
/dev/input/ckb1/ all files except cmd (also a pipe)
journalctrl | grep ckb

[tatokis]

It makes sense that it couldn't read any endpoints, because the actual path it tried to access does not exist. This can be seen later on at Apr 29 12:00:46 xcrysdale-MS-7917 ckb-daemon[4208]: [E] os_setupusb (usb_linux.c:296): Failed to claim interfaces: No such file or directory

[frickler24]

@tatokis The perror message means, that the ioctl could not find the endpoint:

        if(ioctl(kb->handle - 1, USBDEVFS_CLAIMINTERFACE, &i)) {
            ckb_err("Failed to claim interface %d: %s\n", i, strerror(errno));

@Xcrysdale So we may also need the output of ckb-dev-detect

[tatokis]

Remind me again, why do we assume endpoints? If we assume them and they don't really exist, then there's no way we can do anything with them later on.

[frickler24]

That's a really good question. The original code greps the number of endoints via a library function which returns a string with the number of EPs. The function in ckb-daemon assumed always a valid number (2, 3 or 4), but one of our incidents has shown " " as retval.
So I implemented as first reaction for some cases the handling of 0 EPs to assume 3 or 4, based on the information what device it is:

547 const char* ep_str = udev_device_get_sysattr_value(dev, "bNumInterfaces");
548 kb->epcount = 0;
549 if(ep_str)
550 sscanf(ep_str, "%d", &kb->epcount);
551 if(kb->epcount == 0){
552 // This shouldn’t happen, but if it does, assume EP count based on what the device is supposed to
have
553 kb->epcount = (HAS_FEATURES(kb, FEAT_RGB) ? 4 : 3);
554 ckb_warn("Unable to read endpoint count from udev, assuming %d...nn", kb->
epcount);
555 }
556 if(usbclaim(kb)){
557 ckb_err("Failed to claim interfaces: %snn", strerror(errno));
558 return -1;
559 }

[Xcrysdale]

ckb-dev-detect-report.gz

Here's the file you said you may need, one issue I had been experiencing which could have been effecting the install as well would be the fact that windows Hibernated the OS drive when I restarted instead of hard-shutdown but I've resolved that, and the Ckb is still spotty in detecting my Keyboard.

[Xcrysdale]

It looks like from the report the Keyboard doesn't exist, but I've had it working before so I'm a bit confused at the moment. Next time I have it working I'll run the reporter and upload the file but for the moment it won't budge.

[Xcrysdale]

The folder at /dev/input/ckb0 contains the following files:

Connected.txt (Blank text file)
pid.txt (contains the pid of "3784")
version.txt (contains "beta-v0.2.7")

Unfortunately I don't have a ckb1 folder.

Also turns out its journalctl | grep ckb not journalctrl | grep ckb haha had me confused for a second there.

Outputs of running "journalctl | grep ckb"

Apr 30 13:35:35 xcrysdale-MS-7917 ckb-daemon[827]:     ckb: Corsair RGB driver beta-v0.2.7
Apr 30 13:35:35 xcrysdale-MS-7917 ckb-daemon[827]: [I] Root controller ready at /dev/input/ckb0
Apr 30 13:35:38 xcrysdale-MS-7917 gnome-session[1407]: Scanning  "/usr/bin/ckb-animations/ckb-gradient"
Apr 30 13:35:38 xcrysdale-MS-7917 gnome-session[1407]: Scanning  "/usr/bin/ckb-animations/ckb-heat"
Apr 30 13:35:38 xcrysdale-MS-7917 gnome-session[1407]: Scanning  "/usr/bin/ckb-animations/ckb-mviz"
Apr 30 13:35:38 xcrysdale-MS-7917 gnome-session[1407]: Scanning  "/usr/bin/ckb-animations/ckb-pinwheel"
Apr 30 13:35:38 xcrysdale-MS-7917 gnome-session[1407]: Scanning  "/usr/bin/ckb-animations/ckb-rain"
Apr 30 13:35:38 xcrysdale-MS-7917 gnome-session[1407]: Scanning  "/usr/bin/ckb-animations/ckb-random"
Apr 30 13:35:38 xcrysdale-MS-7917 gnome-session[1407]: Scanning  "/usr/bin/ckb-animations/ckb-ripple"
Apr 30 13:35:38 xcrysdale-MS-7917 gnome-session[1407]: Scanning  "/usr/bin/ckb-animations/ckb-wave"
Apr 30 13:36:11 xcrysdale-MS-7917 ckb-daemon[827]: [I] Connecting  at /dev/input/ckb1
Apr 30 13:36:11 xcrysdale-MS-7917 ckb-daemon[827]: [W] os_setupusb (usb_linux.c:293): Unable to read endpoint count from udev, assuming 4...
Apr 30 13:36:11 xcrysdale-MS-7917 ckb-daemon[827]: [E] os_setupusb (usb_linux.c:296): Failed to claim interfaces: No such file or directory
Apr 30 13:36:11 xcrysdale-MS-7917 ckb-daemon[827]: [I] Disconnecting /dev/input/ckb1
Apr 30 13:36:11 xcrysdale-MS-7917 ckb-daemon[827]: [I] Removed device path /dev/input/ckb1
Apr 30 13:37:30 xcrysdale-MS-7917 sudo[3664]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/bin/echo
Apr 30 13:37:30 xcrysdale-MS-7917 sudo[3672]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/bin/mkdir -p /usr/bin
Apr 30 13:37:30 xcrysdale-MS-7917 sudo[3674]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/usr/bin/install bin/ckb /usr/bin/ckb
Apr 30 13:37:30 xcrysdale-MS-7917 sudo[3676]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/usr/bin/install bin/ckb-daemon /usr/bin/ckb-daemon
Apr 30 13:37:30 xcrysdale-MS-7917 sudo[3678]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/bin/mkdir -p /usr/bin/ckb-animations
Apr 30 13:37:30 xcrysdale-MS-7917 sudo[3680]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/usr/bin/install bin/ckb-animations/ckb-gradient bin/ckb-animations/ckb-heat bin/ckb-animations/ckb-mviz bin/ckb-animations/ckb-pinwheel bin/ckb-animations/ckb-rain bin/ckb-animations/ckb-random bin/ckb-animations/ckb-ripple bin/ckb-animations/ckb-wave /usr/bin/ckb-animations
Apr 30 13:37:30 xcrysdale-MS-7917 sudo[3682]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/usr/bin/xdg-icon-resource install --novendor --size 512 usr/ckb.png
Apr 30 13:37:30 xcrysdale-MS-7917 sudo[3709]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/usr/bin/xdg-desktop-menu install --novendor usr/ckb.desktop
Apr 30 13:37:30 xcrysdale-MS-7917 gnome-session[1407]: (gnome-software:1720): As-WARNING **: failed to rescan: Failed to parse /usr/share/applications/ckb.desktop file: cannot process file of type application/x-desktop
Apr 30 13:37:32 xcrysdale-MS-7917 sudo[3745]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/bin/systemctl stop ckb-daemon
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[827]: [I] Caught signal 15
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[827]: [I] Closing root controller
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[827]: [I] Removed device path /dev/input/ckb0
Apr 30 13:37:32 xcrysdale-MS-7917 sudo[3749]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/bin/mkdir -p /usr/lib/systemd/system
Apr 30 13:37:32 xcrysdale-MS-7917 sudo[3751]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/usr/bin/install -m 0644 service/systemd/ckb-daemon.service /usr/lib/systemd/system
Apr 30 13:37:32 xcrysdale-MS-7917 sudo[3753]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/bin/systemctl daemon-reload
Apr 30 13:37:32 xcrysdale-MS-7917 sudo[3767]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/bin/systemctl enable ckb-daemon
Apr 30 13:37:32 xcrysdale-MS-7917 sudo[3781]: xcrysdale : TTY=pts/17 ; PWD=/home/xcrysdale/Desktop/StrafeKeyboard/ckb-next-master ; USER=root ; COMMAND=/bin/systemctl start ckb-daemon
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[3784]:     ckb: Corsair RGB driver beta-v0.2.7
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[3784]: [I] Root controller ready at /dev/input/ckb0
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[3784]: [I] Connecting  at /dev/input/ckb1
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[3784]: [W] os_setupusb (usb_linux.c:293): Unable to read endpoint count from udev, assuming 4...
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[3784]: [E] os_setupusb (usb_linux.c:296): Failed to claim interfaces: No such file or directory
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[3784]: [I] Disconnecting /dev/input/ckb1
Apr 30 13:37:32 xcrysdale-MS-7917 ckb-daemon[3784]: [I] Removed device path /dev/input/ckb1

Sorry for the horrid formatting I'm currently typing using the mouse :)

The report talks about 1b15, but this is Strafe non-RGB's number:

#define P_STRAFE_NRGB       0x1b15

Err, what?

[Xcrysdale]

Just got it working again, anything you want me to run?

[Xcrysdale]

Some more logs with working Keyboard:
Apr 30 14:33:03 xcrysdale-MS-7917 ckb-daemon[848]: ckb: Corsair RGB driver beta-v0.2.7
Apr 30 14:33:03 xcrysdale-MS-7917 ckb-daemon[848]: [I] Root controller ready at /dev/input/ckb0
Apr 30 14:33:03 xcrysdale-MS-7917 ckb-daemon[848]: [I] Connecting Corsair STRAFE Gaming Keyboard at /dev/input/ckb1
Apr 30 14:33:03 xcrysdale-MS-7917 ckb-daemon[848]: [I] Starting input thread for /dev/input/ckb1
Apr 30 14:33:03 xcrysdale-MS-7917 kernel: input: ckb1: Corsair STRAFE Gaming Keyboard as /devices/virtual/input/input33
Apr 30 14:33:03 xcrysdale-MS-7917 kernel: input: ckb1: Corsair STRAFE Gaming Keyboard as /devices/virtual/input/input34
Apr 30 14:33:05 xcrysdale-MS-7917 ckb-daemon[848]: [I] Setup finished for /dev/input/ckb1