udev not loading a module

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
0
down vote

favorite












I'm trying to get udev to load the brcmfmac driver as a module but for some reason it's not detected unless I create a .conf file in a /modules-load.d directory (either in /etc or /lib).



As far as I know, it's not blacklisted and should follow the default udev rules.



udev seems to load an external module fine without any extra files but not brcmfmac. Both are listed in modules.dep and modules.alias.



Why wouldn't it load on boot without the .conf file? Is udevd supposed to be responsible for loading the kernel modules during startup? Thanks in advance.






kernel-modules udev embedded broadcom







share|improve this question























  • I think it depends up on which InitRamFS you are using. For example with dracut you have to embed it into the initrd image in order to get it working.
    – Antonio Petricca
    Sep 25 at 10:30










  • I'm not using an InitRamFS. rootFS is mounted instead.
    – T. Prokopenko
    Sep 25 at 11:31










  • No, udevd isn't responsible for loading kernel modules. It is responsible for doing additional stuff in user space when hardware-related kernel events happen. modprobe loads kernel modules, and depmod does the dependency management for kernel modules.
    – dirkt
    Sep 25 at 12:31










  • Which part starts the entire process though? If modprobe doesn't start loading a certain module, the reason must be on a higher level, right? I can't find the program which should call for modprobe during startup.
    – T. Prokopenko
    Sep 26 at 8:50










  • Apparently modprobe isn't called during startup at all (I tried to print some info to the console during startup but none of it was shown). The load_module function in the Kernel is called from sys_finit_module but whence that is called from I can't find out.
    – T. Prokopenko
    Sep 26 at 12:01














up vote
0
down vote

favorite












I'm trying to get udev to load the brcmfmac driver as a module but for some reason it's not detected unless I create a .conf file in a /modules-load.d directory (either in /etc or /lib).



As far as I know, it's not blacklisted and should follow the default udev rules.



udev seems to load an external module fine without any extra files but not brcmfmac. Both are listed in modules.dep and modules.alias.



Why wouldn't it load on boot without the .conf file? Is udevd supposed to be responsible for loading the kernel modules during startup? Thanks in advance.






kernel-modules udev embedded broadcom







share|improve this question























  • I think it depends up on which InitRamFS you are using. For example with dracut you have to embed it into the initrd image in order to get it working.
    – Antonio Petricca
    Sep 25 at 10:30










  • I'm not using an InitRamFS. rootFS is mounted instead.
    – T. Prokopenko
    Sep 25 at 11:31










  • No, udevd isn't responsible for loading kernel modules. It is responsible for doing additional stuff in user space when hardware-related kernel events happen. modprobe loads kernel modules, and depmod does the dependency management for kernel modules.
    – dirkt
    Sep 25 at 12:31










  • Which part starts the entire process though? If modprobe doesn't start loading a certain module, the reason must be on a higher level, right? I can't find the program which should call for modprobe during startup.
    – T. Prokopenko
    Sep 26 at 8:50










  • Apparently modprobe isn't called during startup at all (I tried to print some info to the console during startup but none of it was shown). The load_module function in the Kernel is called from sys_finit_module but whence that is called from I can't find out.
    – T. Prokopenko
    Sep 26 at 12:01












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I'm trying to get udev to load the brcmfmac driver as a module but for some reason it's not detected unless I create a .conf file in a /modules-load.d directory (either in /etc or /lib).



As far as I know, it's not blacklisted and should follow the default udev rules.



udev seems to load an external module fine without any extra files but not brcmfmac. Both are listed in modules.dep and modules.alias.



Why wouldn't it load on boot without the .conf file? Is udevd supposed to be responsible for loading the kernel modules during startup? Thanks in advance.






kernel-modules udev embedded broadcom







share|improve this question















I'm trying to get udev to load the brcmfmac driver as a module but for some reason it's not detected unless I create a .conf file in a /modules-load.d directory (either in /etc or /lib).



As far as I know, it's not blacklisted and should follow the default udev rules.



udev seems to load an external module fine without any extra files but not brcmfmac. Both are listed in modules.dep and modules.alias.



Why wouldn't it load on boot without the .conf file? Is udevd supposed to be responsible for loading the kernel modules during startup? Thanks in advance.






kernel-modules udev embedded broadcom




kernel-modules udev embedded broadcom






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Sep 25 at 11:50

























asked Sep 25 at 9:25









T. Prokopenko

11




11











  • I think it depends up on which InitRamFS you are using. For example with dracut you have to embed it into the initrd image in order to get it working.
    – Antonio Petricca
    Sep 25 at 10:30










  • I'm not using an InitRamFS. rootFS is mounted instead.
    – T. Prokopenko
    Sep 25 at 11:31










  • No, udevd isn't responsible for loading kernel modules. It is responsible for doing additional stuff in user space when hardware-related kernel events happen. modprobe loads kernel modules, and depmod does the dependency management for kernel modules.
    – dirkt
    Sep 25 at 12:31










  • Which part starts the entire process though? If modprobe doesn't start loading a certain module, the reason must be on a higher level, right? I can't find the program which should call for modprobe during startup.
    – T. Prokopenko
    Sep 26 at 8:50










  • Apparently modprobe isn't called during startup at all (I tried to print some info to the console during startup but none of it was shown). The load_module function in the Kernel is called from sys_finit_module but whence that is called from I can't find out.
    – T. Prokopenko
    Sep 26 at 12:01
















  • I think it depends up on which InitRamFS you are using. For example with dracut you have to embed it into the initrd image in order to get it working.
    – Antonio Petricca
    Sep 25 at 10:30










  • I'm not using an InitRamFS. rootFS is mounted instead.
    – T. Prokopenko
    Sep 25 at 11:31










  • No, udevd isn't responsible for loading kernel modules. It is responsible for doing additional stuff in user space when hardware-related kernel events happen. modprobe loads kernel modules, and depmod does the dependency management for kernel modules.
    – dirkt
    Sep 25 at 12:31










  • Which part starts the entire process though? If modprobe doesn't start loading a certain module, the reason must be on a higher level, right? I can't find the program which should call for modprobe during startup.
    – T. Prokopenko
    Sep 26 at 8:50










  • Apparently modprobe isn't called during startup at all (I tried to print some info to the console during startup but none of it was shown). The load_module function in the Kernel is called from sys_finit_module but whence that is called from I can't find out.
    – T. Prokopenko
    Sep 26 at 12:01















I think it depends up on which InitRamFS you are using. For example with dracut you have to embed it into the initrd image in order to get it working.
– Antonio Petricca
Sep 25 at 10:30




I think it depends up on which InitRamFS you are using. For example with dracut you have to embed it into the initrd image in order to get it working.
– Antonio Petricca
Sep 25 at 10:30












I'm not using an InitRamFS. rootFS is mounted instead.
– T. Prokopenko
Sep 25 at 11:31




I'm not using an InitRamFS. rootFS is mounted instead.
– T. Prokopenko
Sep 25 at 11:31












No, udevd isn't responsible for loading kernel modules. It is responsible for doing additional stuff in user space when hardware-related kernel events happen. modprobe loads kernel modules, and depmod does the dependency management for kernel modules.
– dirkt
Sep 25 at 12:31




No, udevd isn't responsible for loading kernel modules. It is responsible for doing additional stuff in user space when hardware-related kernel events happen. modprobe loads kernel modules, and depmod does the dependency management for kernel modules.
– dirkt
Sep 25 at 12:31












Which part starts the entire process though? If modprobe doesn't start loading a certain module, the reason must be on a higher level, right? I can't find the program which should call for modprobe during startup.
– T. Prokopenko
Sep 26 at 8:50




Which part starts the entire process though? If modprobe doesn't start loading a certain module, the reason must be on a higher level, right? I can't find the program which should call for modprobe during startup.
– T. Prokopenko
Sep 26 at 8:50












Apparently modprobe isn't called during startup at all (I tried to print some info to the console during startup but none of it was shown). The load_module function in the Kernel is called from sys_finit_module but whence that is called from I can't find out.
– T. Prokopenko
Sep 26 at 12:01




Apparently modprobe isn't called during startup at all (I tried to print some info to the console during startup but none of it was shown). The load_module function in the Kernel is called from sys_finit_module but whence that is called from I can't find out.
– T. Prokopenko
Sep 26 at 12:01















active

oldest

votes











Your Answer







StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "106"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: false,
noModals: false,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













 

draft saved


draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f471271%2fudev-not-loading-a-module%23new-answer', 'question_page');

);

Post as a guest






















active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes















 

draft saved


draft discarded















































 


draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f471271%2fudev-not-loading-a-module%23new-answer', 'question_page');

);

Post as a guest
































































-

Popular posts from this blog

How to check contact read email or not when send email to Individual?

Image
Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this questi...
Read more

Displaying single band from multi-band raster using QGIS

Image
Clash Royale CLAN TAG #URR8PPP 1 How can I extract a single band from multi-band raster in QGIS? I have an remote sensed image which has 6 bands (including NDVI band), I want to display each band separately, but have no idea how to do. I have seen some questions similar here but none worked for me. The original image (has 6 bands) is: I want to display the band 6 which should be like this: But I tried gdal_translate, and couldn't get the correct result. What I have got is: qgis raster multi-band share | improve this question edited Mar 5 at 0:53 Summer asked Mar 4 at 6:42 Summer Summer 23 6 Is this any help gis.stackexchange.com/questions/220658/… ? if not gis.stackexchange.com/questions/62133/… might help. – Michael Stimson Mar 4 at 6:46 Thanks for answering but when I used gdal_translate, qgis showed that 'Error 4: Kayena.tif: No such file or directory". Would you know how to fi...
Read more

How many registers does an x86_64 CPU actually have?

Image
Clash Royale CLAN TAG #URR8PPP up vote 2 down vote favorite I am currently learning reverse engineering and am studying the flags register. I had in my mind that rflags was just another name for one of the 16 general purpose registers, for example rax or rbx . But it looks like rflags is actually an additional register. So that makes 17 registers in total... how many more could there be? I have spent at least an hour on this and found numerous different answers. The best answer so far is this, which says that there are 40 registers in total. 16 General Purpose Registers 2 Status Registers 6 Code Segment Registers 16 SSE Registers 8 FPU/MMX Registers But if I add that up, I get 48. Could anybody provide an official answer on how many registers an x86_64 CPU has (e.g. an Intel i7). Additionally, I have seen references to 'hardware' and 'architectural' registers. What are those registers and how many are there? register x86-64 share | improve this...
Read more