Driver Installation Ubuntu kernel 2.6.17 Basic Help

[ahuguet at cttc.es]

Update:

If I run:

make -C /usr/src/linux-source-2.6.17
without the SUBDIRS=./ modules part, seems that the compilation process is
launched.

Any ideas about why it does so without that?

> Thank you Jouni and Bob.
>
> I found out I needed to compile the kernel sources at least one time
> before using your recipe Bob, so I did compile the kernel sources, and
> installed the .deb resulting packages to have the kernel (which is now
> 2.6.17-14)
>
> I'm trying then to edit some files of the driver.
>
> So I do:
> gedit
> /usr/src/linux-source-2.6.17/drivers/net/wireless/hostap/hostap_80211_rx.c
>
> in order to edit the .c file and add code to it. (I previously became
> superuser with the su command)
>
> I make my changes to the file, then exit the editor.
> After that, I try to use your recipe, Bob.
> So:
>
> make -C /usr/src/linux-source-2.6.17 SUBDIRS=./ modules
>
> it then says it enters into /usr/src/linux-source-2.6.17
> and I get this:
>
>  Building modules, stage 2.
>   MODPOST
>
> Then it says it exits /usr/src/linux-source-2.6.17
>
> After I keep with your recipe:
>
> make -C /usr/src/linux-source-2.6.17 SUBDIRS=./ modules_install
>
> I get, enters into directory then:
> DEPMOD  2.6.17.14-ubuntu1
> then exits directory.
>
> I keep with:
>
> depmod -ae
>
> that returns no message.
>
> The point is, how is it that I've not been notified of any error or
> warning at all? I even purposedly added a garbage line there, in order to
> try if when doing the make command, the errors were showed to me, but no.
>
> I'll list you the content of:
>
> /usr/src/linux-source-2.6.17/drivers/net/wireless/hostap# ls
>
> built-in.o          hostap_config.h    hostap_ioctl.o    hostap_plx.c
> hostap_80211.h      hostap_cs.c        hostap.ko         hostap_plx.ko
> hostap_80211.h~     hostap_cs.ko       hostap_main.c     hostap_plx.mod.c
> hostap_80211_rx.c   hostap_cs.mod.c    hostap_main.o     hostap_plx.mod.o
> hostap_80211_rx.c~  hostap_cs.mod.o    hostap.mod.c      hostap_plx.o
> hostap_80211_rx.o   hostap_cs.o        hostap.mod.o      hostap_proc.c
> hostap_80211_tx.c   hostap_download.c  hostap.o          hostap_proc.o
> hostap_80211_tx.o   hostap.h           hostap_pci.c      hostap_wlan.h
> hostap_ap.c         hostap_hw.c        hostap_pci.ko     Kconfig
> hostap_ap.h         hostap_info.c      hostap_pci.mod.c  Makefile
> hostap_ap.o         hostap_info.o      hostap_pci.mod.o
> hostap_common.h     hostap_ioctl.c     hostap_pci.o
>
> I notice that files "hostap_80211.h" and "hostap_80211_rx.c" have a copy
> with a ~ on them, as if they were temporary files. Those two, the ones
> ending with .c and .h have been the ones I've tried to modify.
> I saved the changes in the editor, and closed the editor program.
> The only thing I've opened right now is Firefox to compose this mail.
> Could it be that no errors are being shown, because the files have not yet
> been properly saved?
> If so, what am I doing wrong?
>
> Thank you again for all your cooperation.
>
>
>
>
>> On 3/21/07, Jouni Malinen <j at w1.fi> wrote:
>>>
>>> On Wed, Mar 21, 2007 at 12:01:14PM +0100, ahuguet at cttc.es wrote:
>>>
>>> > Reading it, seems that the only way to make use of that HostAP driver
>>> > (with modified code lines on .c and .h files) is to compile the
>>> kernel
>>> > anew?
>>> >
>>> > Couldn't be a way to just tell the system to compile HostAP, and use
>>> that
>>> > "new" version, without need of recompiling the whole kernel?
>>
>>
>> My "secret recipe" for compiling just an individual driver is
>>  approximately this:
>>
>> 1 - cd to the hostap directory, /usr/src/linux-source-2.6.17
>> /drivers/net/wireless/hostap
>> 2 - make your changes and save them
>> 3 - 'make -C /usr/src/linux-source-2.6.17 SUBDIRS=./ modules'
>> 4 - 'make -C /usr/src/linux-source-2.6.17 SUBDIRS=./ modules_install'
>> 5 - 'depmod -ae'
>>
>> Then do the rest of what Jouni says; reload (the new) modules, and try
>> it
>> out.
>>
>> If you build Host AP driver as a kernel module, you can just rebuild it
>>> and reload the modules to update the driver without having to
>>> rebuild or reboot the full kernel.
>>>
>>>
>>
>> I hope this is helpful, (and anyone who finds an error, please correct
>> me!)
>>
>> Bob Beers
>> _______________________________________________
>> HostAP mailing list
>> HostAP at shmoo.com
>> http://lists.shmoo.com/mailman/listinfo/hostap
>>
>
>
> _______________________________________________
> HostAP mailing list
> HostAP at shmoo.com
> http://lists.shmoo.com/mailman/listinfo/hostap
>