Use this tag for questions about loading, configuring, or compiling them. See also /drivers for questions about which modules to use for specific hardware. A kernel module is a bit of code that can be added into the kernel by the administrator while the system is running, typically providing one ...

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525 views

“usb 3-2: can't set config #1, error -110” - USB keyboard works in Windows 8 laptop but on PC only until Linux boots

I tried 2 new USB keyboards that work until Linux starts booting. When booting I saw: [ 8.365211] usb 3-2: New USB device found, idVendor=1a2c, idProduct=0b23 [ 8.404863] usb 3-2: New USB ...
3
votes
0answers
436 views

How to load HID kernel module from the kernel command line?

While upgrading a server from kernel 3.2.9 to kernel 3.5 I had a problem with the network (ifconfig eth0 up won't work) so I updated the system to get a newer userspace, but in the process something ...
2
votes
0answers
95 views

lz4 Kernel Module in CentOS without recompiling

I just installed CentOS 7 on a vServer to play around with. Usually I use Debian. Since I had good results, I want to use zswap. I enabled it by putting zswap.enabled=1 zswap.compressor=lz4 in the ...
2
votes
0answers
93 views

How can I set up an offbrand display link (Trulink) to work with arch linux?

I recently bought a USB to DVI adapter and it works great in Windows. However, I wanted to use it on Arch since that's where I do most of my work. Unfortunately it doesn't work. I've installed all ...
2
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0answers
111 views

kernel build: why does 'make install' complain about missing modules?

I'm building a 3.2.x kernel on a RedHat Enterpise system. During 'make install' it takes a very long time and is complaining : ERROR: modinfo: could not find module xxx I assume its probing ...
2
votes
0answers
139 views

RNDIS Server to make a computer as a peripheral

First of all my goal is this, have a computer as a peripheral device to connect it to anyone's computer with ssh protocol or web. The idea is doing this by using a plug and play USB cable . Facts ...
2
votes
0answers
111 views

How can I automatically include all firmware needed by selected Linux kernel modules

I have certain modules which I need compiled into the kernel. Some of these modules require firmware, which used to be automatically included from /usr/src/linux/firmware/. However, no new firmware ...
2
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0answers
426 views

Debian Wheezy USB2 ehci_hcd

I have a friend who decided to switch to Linux from Windows. I was helping her to get up and running as quickly as possible but we ran into a problem which I can't seem to solve. She uses Debian ...
2
votes
0answers
283 views

TUN/TAP Will not load

I have an OpenVZ server but can't seem to get the tun/tap module to load. I ran modprode tun on the hostnode but when I go under the VM I get: Tue Sep 24 03:08:36 2013 Note: Cannot open TUN/TAP dev ...
2
votes
0answers
239 views

How to configure buildroot to add a sound device?

I've used a given board configuration to reconfigure it for my individual board. My board has a CS4270 sound device of Cirrus Logic. My uImage is booting successfully on my target hardware, but an ...
2
votes
0answers
3k views

WiFi not working - wlan0 FAILED

My Arch (3.6.5-1) is exhibiting a rather peculiar problem: when wifi is set up, all logs indicate that the setup was successful and that the interface is up and functional. However, when attempting to ...
2
votes
0answers
112 views

How to find where driver.mod.c links to?

I'm trying to port the webcam composite gadget from kernel 2.6.37 to 2.6.32. I don't have a choice on this since I depend on other drivers and a SDK which only compile for this version. My train of ...
2
votes
0answers
383 views

Kernel 3.0.0-1 and NVIDIA driver boot problems

I can't boot kernel 3.0.0-1 on Asus G53S running Debian, it freezes when booting with: NVRM loading NVIDIA Unix x86_64 kernel module 275.28 then it times out with: udevd[350]: timeout: killing ...
1
vote
0answers
31 views

How are network and SCSI kernel modules handled differently from other kernel modules?

I used modprobe to load the 8021q.ko module on a server. I expected to have to do this every time the server rebooted until I made it persistent. However, to my surprise, it was loaded automatically ...
1
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0answers
58 views

How can I properly reload a kernel module?

Related Question I can't reload a kernel module for trying new flags. Example: thinkpad_acpi default is without fan_control=1. So if my computer runs really hot and the fans don't go to full speed it ...
1
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0answers
34 views

Failing to load a module on udev event

I have a pretty simple udev rule which is executed when a USB is plugged into my Debian machine: SUBSYSTEMS=="usb", KERNEL=="sd?", ACTION=="add", RUN+="/usr/local/bin/USB/t.sh \ %k" My t.sh is also ...
1
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0answers
56 views

Get KERN_DEBUG messages into syslog on rhel7/centos7?

I've been trying to get KERN_DEBUG messages logged to a file in centos7, but have had no luck. I can get them just fine from "dmesg," but not /var/log/messages or /var/log/dmesg Here's a MWE kernel ...
1
vote
0answers
31 views

“disagrees about version” message

I get a message "disagrees about version" on boot time, after compiling kernel and modules with KGDB. Why should this happen ? Is there any problem with KGDB ? This is the relevant log at boot: ...
1
vote
0answers
56 views

What does __ prefix before some kernel api's convey?

Why do some function calls in kernel specially have this prefix __ example: __init initialization(void) is __init a macro? What does this convey? Are these a special class of function calls inside ...
1
vote
0answers
27 views

CPUFreq Kernel module

I would like to try the CPUFreq module on my board (Marvell Soc based on ARMv7 running a v3.15 linux kernel). My architecture is obviously not supported by the default source code (located in the ...
1
vote
0answers
249 views

How to get an Wacom Intuos CTH-480 to work under Easy Peasy 1.6 (Ubuntu 10.04)?

Is there any way to make a Wacom Intuous CTH-480 work under Easy Peasy 1.6 (Ubuntu 10.04)? I have installed the Wacom Driver files according these instruction, replacing 3.7 with 2.6.30, as Easy ...
1
vote
0answers
43 views

Opensuse remove kernel module

I recently installed OpenSuse. I have a problem with the mouse left click. I had the same problem in Debian but when I removed the psmouse module everything started working perfectly. I tried the same ...
1
vote
0answers
96 views

CPU usage by kernel modules, routing and forwarding rules

I have a system with a loopback kernel module installed. Through a bunch of routing and iptable rules, packets coming out of the loopback interface are sent over an ipsec tunnel. I am seeing that ...
1
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0answers
77 views

Adding IPVS to the kernel

I am trying to setup keepalived on a pair of VPS load balancer servers. I have hit the road block of IPVS not being included with the kernal. IPVS: Can't initialize ipvs: Protocol not available I ...
1
vote
0answers
160 views

Kconfig - compiling kernel module

I stumbled over this site about USB video grabber under Linux, I'm trying to compile the code found here. I have read about makefiles but this one confuses me, cause it's so short: usbtv-y := ...
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vote
0answers
179 views

Can only initialize Ad-hoc mode after restarting iwlwifi mod and network manager

I am running Ubuntu 12.04.4 with network interface: *-network description: Wireless interface product: Centrino Advanced-N 6235 vendor: Intel Corporation ...
1
vote
0answers
119 views

Looking for a list of modules that are used during boot sequence

I'd like to use deferred init calls. This function allows to load modules in userland, that should actually be loaded during the boot sequence. Just for testing I'd like to modularize as many entries ...
1
vote
0answers
108 views

How to disable PAE feature of kernel, after installation?

I am using RHEL 5.3(x86) as a base platform for my development purpose.My machine's spec is as follows: Intel, Core-i3 Processor @ 2.5GHz 4GB RAM Problem is whenever I am attempting to install the ...
1
vote
0answers
66 views

kernel 3.1x and optimus support

I have encountered a negative observation regarding bumblebee. Namely, using optirun the performance of the GPU seems to be an order of magnitude lower than it should be. To be more specific: I have ...
1
vote
0answers
366 views

I can't find tape device file inside /dev directory

I'm using tape storage drive HP LTO3 1x8 auto-loader which is connected to my server running CentOS. it is detected in CentOS correctly. cat /proc/scsi/scsi Host: scsi2 Channel: 00 Id: 01 Lun: 00 ...
1
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0answers
66 views

What are the generic-pae directories in /lib/modules?

When listing the content of the dirctory /lib/modules I see a list of generic-pae directories (Ubuntu 12.04): drwxr-xr-x 4 root root 4096 Apr 23 2012 3.2.0-23-generic-pae drwxr-xr-x 5 root root ...
1
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0answers
282 views

How to load kernel module in Chromium OS?

I've installed the Chromium Vanilla by Hexxeh to a USB drive, but I can't use it on my computer because it lacks the carl9170 driver, which is needed by my adapter (a D-Link DWA-160.) I've managed to ...
1
vote
0answers
172 views

after enabling Xinerama (in AMD condor Dual-Head Graphics Card) the system graphics hangs

I have a problem in my AMD Condor Dual-Head Graphics Card When I enable Xinerama from "System → Preferences → AMD Catalyst Control center (Administrative)" my RHEL Server 6.3 (x64) Graphics hangs. ...
1
vote
0answers
534 views

Busybox `uname -r` shows wrong kernel version

My kernel is 3.2.27 and /lib/modules/ contains 3.2.27 + folder. But when I am using /# uname -r 3.1.9+ It's showing a strange output. My problem is that for modprobe depends on uname when I put ...
1
vote
0answers
791 views

iptables not starting up

I have inherited a custom built Linux kernel 2.6.30.9 and am just upgrading the underlying OS from RHEL 5.4 to 5.8 (kernels 2.6.18.164 and 2.6.18.308 respectively). When booting, the following is ...
1
vote
0answers
575 views

I can't find my tape library changer under centos 5 with a quantum scalar i40

i have a quantum scalar i40 connect on a centos 5 machine trough SAS interface. I fight with it since a while because the media changer does not work. I finally understood yesterday that the system ...
1
vote
0answers
465 views

systemd-modules-load print errors when loading builtin kernel modules

I'm running Arch Linux, it uses systemd-modules-load to load modules configured in /etc/rc.conf, but since I use a custom kernel and lts kernel, I had to put all possible modules in that config file ...
0
votes
0answers
10 views

is kernel module preempted

I made a kernel module in raspberry which dialog with external sensor to ask for temperature. to talk with the sensor, i should set gpio pins input and output for specified amount of time (in ms). and ...
0
votes
0answers
6 views

loading ath9k_htc kernel driver fails

could someone please point me in the right direction to get my external wireless stick (TL-WN722N) working on my Xperia Neo (haida) smartphone? So far I've done the following: I downloaded ...
0
votes
0answers
16 views

Debian Squeeze: TCP/ICMP stops working suddenly (R8169 Driver)

we suddenly see our NETWORKING stops (TCP/UDP/ICMP) in our client system. tcp: We tried reaching our server every 5 seconds.But , there was no connection establishment TCPDUMP REF: ...
0
votes
0answers
32 views

custom built kernel module problems

I have been struggling to find a solution for loading module ath9k into the kernel and I have met a dead end. The kernel is 3.17.1 taken from kernel.org and I am compiling it in Ubuntu Trusty (14.04) ...
0
votes
0answers
26 views

Changing CPU frequency programmatically

I have seen that standard CPU Frequency driver(comes with default package with linux kernel) can change the CPU frequency at runtime, when being used under the supervision of "Ondemand" governor. ...
0
votes
0answers
20 views

rtnetlink No such file or directory error For Red algorithm

I tried the following command on my Ubuntu 14.04 Virtual Machine: tc qdisc add dev eth0 parent 1:1 handle 10: red limit 400000 min 30000 max 90000 avpkt 1000 burst 55 ecn adaptive ...
0
votes
0answers
12 views

How Do I Reset Modules to Default

Bad form, but I attempted to install a custom module from a project that didn't support an uninstall target. Now I'm getting odd behaviors with kernel panics and brightness zero on boot. How can I ...
0
votes
0answers
42 views

How to display printk messages filtered by level as they come?

I wrote a hello word module that performs a printk when it is loaded in level ALERT and another printk when it is released with level INFO: #include <linux/module.h> #include ...
0
votes
0answers
56 views

Missing macros for VSYSCALL in Linux 3.16.4

I am running Arch with kernel version 3.16.4. I need to compile a kernel module for running Intel Vtune '13 (r17). GCC reports the following: ...
0
votes
0answers
105 views

vboxdrv kernel module

I'm just install virtualbox and when i try to launch the program from the terminal i got this error #virtualbox WARNING: The character device /dev/vboxdrv does not exist. Please install the ...
0
votes
0answers
45 views

rts5139/rtsx_usb borked in 3.15+

Some time in 3.15, someone moved the rts5139 driver out of staging (I cannot find a changelog of this) and it got renamed to rtsx_usb. This, unfortunately, broke support for at least the RTS5139 card ...
0
votes
0answers
48 views

2.6.35 usb-serial kernel patch

I am working with an ARMV71 chip, with embedded Debian 2.6.35.9 - However, the entire source tree of linux-source-2.6.35-9/drivers/usb/serial seems to be buggy. Trying to make the module ...
0
votes
0answers
81 views

USB Keyboard Hotplug Module not Working

The following module could be compiled and loaded without any error: #include <linux/module.h> #include <linux/kernel.h> #include <linux/usb.h> #include <linux/usb/input.h> ...