Isamar, If you are willing to edit the source code, you can cut & paste the source code for snd_hda_codec_read/write from your kernel into the driver's HDA.c file, the same way it is done in the agrsm-2.1.80-7mdv2009.0.tar.gz package. Then you wouldn't need to export those symbols. -- WBR, Nikolay Zhuravlev Thus spake Isamar Maia (isamar@xxxxxxxxx): > Hi Nikolay, > > Thanks for your time. > > If I don't add the EXPORT_SYMBOL, > "agrserial.ko" complains with "symbol not found" message > referring to snd_hda_codec_read and snd_hda_codec_write > > I am using alsa stuff for a specific board support since I can't upgrade > the kernel version now. There is no relation in this compilation between > alsa kernel sources and the alsa-1.0.19 independent tree. BTW, is there > any way to import a new alsa kernel driver into the vanilla kernel source tree ? > > Anyway, checking hda_codec.c of alsa 1.0.19, it's possible to see > that, both symbols, snd_hda_codec_read and snd_hda_codec_write > are already "exported" using EXPORT_SYMBOL_HDA() > > > Isamar > > > > 2009/6/10 Nikolay Zhuravlev <xxor@xxxxxxx>: > > Isamar, > > > > What happens if you skip that part of the instructions > > and do not add the EXPORT_SYMBOL? > > The error log shows you have two versions of the hda_codec.c file, > > each having its own definition of the symbols. > > Why do you have the alsa stuff installed separately from the kernel sources, > > in the /usr/src/alsa directory? The kernel has its own alsa sources, > > and that seems to cause a problem you describe. > > > > -- > > WBR, Nikolay Zhuravlev > > > > Thus spake Isamar Maia (isamar@xxxxxxxxx): > > > >> Hi Folks, > >> > >> Long time since my last post here. Thank you very much for all > >> collaboration and great results > >> supporting several modems on Linux. > >> > >> I am trying to compile agrsm support for kernel 2.6.26.5-45.fc9.i686. > >> Using Fedora 9. Alsa-driver-1.0.19 > >> > >> I cannot use different kernel and distro versions since it's a > >> customized OEM distro(respin) with several > >> dependencies and customizations. > >> > >> I am not getting to add the "EXPORT_SYMBOL" lines as per described in > >> the item 2.2 of > >> http://linmodems.technion.ac.il/packages/ltmodem/11c11040/HOWTO-Agere-11c11040-HDA.html > >> > >> When I add those lines and try to recompile the alsa kernel driver, I get: > >> > >> > >> In file included from /usr/src/alsa/alsa-driver-1.0.19/pci/hda/hda_codec.c:2: > >> /usr/src/alsa/alsa-driver-1.0.19/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:193: > >> error: redefinition of '__kstrtab_snd_hda_codec_read' > >> /usr/src/alsa/alsa-driver-1.0.19/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:34: > >> error: previous definition of '__kstrtab_snd_hda_codec_read' was here > >> /usr/src/alsa/alsa-driver-1.0.19/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:193: > >> error: redefinition of '__ksymtab_snd_hda_codec_read' > >> /usr/src/alsa/alsa-driver-1.0.19/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:34: > >> error: previous definition of '__ksymtab_snd_hda_codec_read' was here > >> /usr/src/alsa/alsa-driver-1.0.19/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:222: > >> error: redefinition of '__kstrtab_snd_hda_codec_write' > >> /usr/src/alsa/alsa-driver-1.0.19/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:35: > >> error: previous definition of '__kstrtab_snd_hda_codec_write' was here > >> /usr/src/alsa/alsa-driver-1.0.19/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:222: > >> error: redefinition of '__ksymtab_snd_hda_codec_write' > >> /usr/src/alsa/alsa-driver-1.0.19/pci/hda/../../alsa-kernel/pci/hda/hda_codec.c:35: > >> error: previous definition of '__ksymtab_snd_hda_codec_write' was here > >> make[4]: *** [/usr/src/alsa/alsa-driver-1.0.19/pci/hda/hda_codec.o] Error 1 > >> make[3]: *** [/usr/src/alsa/alsa-driver-1.0.19/pci/hda] Error 2 > >> make[2]: *** [/usr/src/alsa/alsa-driver-1.0.19/pci] Error 2 > >> make[1]: *** [_module_/usr/src/alsa/alsa-driver-1.0.19] Error 2 > >> make[1]: Leaving directory `/usr/src/kernels/2.6.26.5-45.fc9.i686' > >> make: *** [compile] Error 2 > >> > >> > >> Any tip? > >> > >>
