Wifi adapter

[Jerry Snitselaar]

Stephen M @ 2017-04-09 00:35 GMT:

> When I go into the zip file itself, the driver is 8188eu and that's what I
> copied over to /lib/modules but still getting the same message.  I can do a
> lsmod and it can see the module but it's not active.
>

What is the output of the following:

uname -r
find /lib/modules -type f -name 8188eu.ko
grep 8188eu.ko /lib/modules/`uname -r`/modules.dep
lsmod | grep 8188eu

> On Sat, Apr 8, 2017 at 12:18 PM, Jerry Snitselaar <dev at snitselaar.org>
> wrote:
>
>>
>> Stephen M @ 2017-04-08 18:58 GMT:
>>
>> > I get this message when trying,
>> >
>> > stephend at stephend-desktop:~/Downloads/rtl8188eu$ sudo modprobe 8188eu.ko
>> > [sudo] password for stephend:
>> > modprobe: FATAL: Module 8188eu.ko not found.
>> > stephend at stephend-desktop:~/Downloads/rtl8188eu$
>> >
>> > Now I'm assuming I need to move the driver but do a move the entire
>> folder
>> > or just the script itself to the usr/lib folder?
>> >
>> > On Sat, Apr 8, 2017 at 11:40 AM, Jerry Snitselaar <dev at snitselaar.org>
>> > wrote:
>> >
>>
>> When using modprobe drop the .ko off the name. Is it named 8188eu.ko or
>> r8188eu.ko ? Whichever it is, copy it to /lib/modules/`uname -r`/extra
>> and then run 'depmod -a'. once that is done you should be able to do
>> 'modprobe r8188eu' or whatever the name is, and have it load.
>>
>> >>
>> >> Stephen M @ 2017-04-08 15:56 GMT:
>> >>
>> >> > The driver is rtl8188eu for a TL-WN725N wifi adapter
>> >> >
>> >>
>> >>  Ah, that has been sitting in drivers/staging for a long time.
>> >>
>> >>  Does your modprobe work now?
>> >>
>> >>  An example on Fedora 25 with a test module:
>> >>
>> >>  ~/mymod> sudo modprobe mymod
>> >>  modprobe: FATAL: Module mymod not found in directory
>> >> /lib/modules/4.10.5-200.fc25.x86_64
>> >>  ~/mymod> make
>> >>  make -C /lib/modules/4.10.5-200.fc25.x86_64/build
>> M=/home/jsnitsel/mymod
>> >> modules
>> >>  make[1]: Entering directory '/usr/src/kernels/4.10.5-200.fc25.x86_64'
>> >>    CC [M]  /home/jsnitsel/mymod/mymod.o
>> >>    Building modules, stage 2.
>> >>    MODPOST 1 modules
>> >>    CC      /home/jsnitsel/mymod/mymod.mod.o
>> >>    LD [M]  /home/jsnitsel/mymod/mymod.ko
>> >>  make[1]: Leaving directory '/usr/src/kernels/4.10.5-200.fc25.x86_64'
>> >>  xz --check=crc32 --lzma2=dict=512KiB mymod.ko
>> >>  ~/mymod> ls
>> >>  Makefile  modules.order  Module.symvers  mymod.c  mymod.ko.xz
>> >> mymod.mod.c  mymod.mod.o  mymod.o
>> >>  ~/mymod> sudo cp mymod.ko.xz /lib/modules/`uname -r`/extra/
>> >>  ~/mymod> sudo depmod -a
>> >>  ~/mymod> sudo modprobe mymod
>> >>  ~/mymod> lsmod | grep mymod
>> >>  mymod                  16384  0
>> >>  ~/mymod> dmesg | tail -1
>> >>  [344910.989060] loading mymod
>> >>
>> >>
>> >> > On Fri, Apr 7, 2017 at 10:32 PM, Jerry Snitselaar <dev at snitselaar.org
>> >
>> >> > wrote:
>> >> >
>> >> >>
>> >> >> Stephen M @ 2017-04-08 00:55 GMT:
>> >> >>
>> >> >> > Hi everyone,
>> >> >> >
>> >> >> > This seems really dumb but I have a wifi adapter from TP-Link on a
>> >> Ubuntu
>> >> >> > 14.04 machine that disconnects after reboot or a system update.  I
>> >> keep
>> >> >> > typing insmod to get it to turn back on.  I know I need to do
>> modprobe
>> >> >> but
>> >> >> > it can't find the file.
>> >> >> >
>> >> >> > I downloaded the driver from their site, unzipped it in my download
>> >> >> folder
>> >> >> > though I think I need to move it.  Any help would be grateful.
>> >> >>
>> >> >> modprobe can't load it because it knows nothing about the driver.
>> >> >>
>> >> >> Try:
>> >> >>
>> >> >> sudo cp *downloaded-module* /lib/modules/`uname -r`/extra/
>> >> >> sudo depmod -a
>> >> >>
>> >> >> You will still run into the issue each time a new kernel is
>> installed,
>> >> >> and since the driver isn't tied to the kernel you are running there
>> can
>> >> >> be incompatibilities that cause issues. if you do run into issues
>> with
>> >> >> it, you can blacklist it on the kernel parameters line when booting.
>> >> >> 'module_blacklist=module_name' should work.
>> >> >>
>> >> >> What driver is it using?
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