[LUG.ro] Controlador amr (y kernel 2.6)

[Ricardo Barberis]

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El Lunes 26 Enero 2004 10:59, Martin C escribió:
> > Esa página es un excelente punto de partida, incluso
> > tienen un driver en
> > etapa de desarrollo para la serie 2.6 del kernel, el
> > cual pienso probar lo
> > antes posible :-))))

Me olvidé, lo pueden bajar desde http://br.geocities.com/ricardowongbr/pctel

> > Y hablando del 2.6, tengo un mail de otra lista que
> > dice como compilar el
> > driver para modems Lucent con ese núcleo.
> > Si a alguien le interesa, chifle y lo posteo acá.
>
> FIUUUU!!  Mmmm... bueno... fué un chiflido :D
> Mandalo nomás.

OK, aca va un preliminar. Van a ver que el loco este le estaba dando una 
mano a otro para compilar un driver de vídeo con DRI para el 2.6, pero las 
instrucciones son bastante generales.
Cuando pueda esta semana, voy a ver si le digo que me pase algo más 
concreto.

<cita>
On Sunday 20 July 2003 03:56, Ken Moffat wrote:
>  I'm assuming that .ko modules are the new-style modules which break
> modutils ?  I know nothing about how to persuade X to build a .ko
> instead of a .o (I haven't built 2.5 since before this change), but a
> quick search on google suggests there is a Makefile.build script in the
> kernel scripts directory, and within that is something I don't
> understand ending $(obj-m:.o=.ko).  At a guess, this is telling the make
> process to create the object modules as .ko instead of .o, in which case
> I think all you need to do is
>
> 1. build the XFree dri module with the same compiler as you used for the
> kernel, giving a .o in the XFree tree (if you need help on this, check
> search.linuxfromscratch.org for XFree DRI - I posted in April this year,
> somebody gave me a one-liner which should rebuild most of the modules,
> then Kelledin posted a link to a tarball for building only modules with
> a corrected Makefile).
>
That won't work - there is some additional information in the new style 
modules. But I think you will be able to build them. See below for general 
information.

> 2. save your existing module under another name, just in case, and copy
> the module from X to /lib/modules/wherever changing the suffix to .ko .

That won't work!

Below is a series of steps that I had to perform to use the LT Win Modem 
driver under 2.5.70. They are general enough, so I hope that you will be 
able to apply them to DRI.

1) Investigate which source files you have. For LT Win Modem: There is a 
prebuilt file ltmdmobj.o.gcc3 and a glue source file ltmodem.c that in 2.4 
go together into lt_modem.o. Also there is a file serial-lt-2.4.c that 
produces lt_serial.o.
2) Based on this knowledge, write a Makefile. In my case it looks as 
follows:

# the first two lines are based on the original Makefile, they are 
LT-specific
EXTRA_CFLAGS := -DNO_EEPROM -DLT_SERIAL_MODULE=lt_serial -DLT_VERSION=8.26a9
LDFLAGS += -d
# Then for each source file we add the corresponding .o file to obj-m
obj-m += lt_modem.o
# and for each resulting .ko module we list the .o files that go into it
lt_modem-objs := ltmdmobj.o.gcc3 ltmodem.o
# the same for lt_serial.ko
obj-m += lt_serial.o
lt_serial-objs := serial-lt-2.4.o
# End of the Makefile

3) Build as follows (I assume that you didn't issue a make clean in the 
kernel sources tree):

make -C /usr/src/linux-2.5.70 SUBDIRS=$PWD modules

3.5) That didn't work because of some changes in the PCI bus access 
functions, totally rewritten devfs, and some changes in the tty code. I 
managed to modify the source to account for all these differences. A patch 
will be sent here upon request. At last, the step 3 succeded. I hope there 
will be no such problem for DRI.

4) Install modules as usual.

Or, you can always try a CVS version of DRI. I will be much surprised if 
there is no support for 2.5 (now 2.6pre) kernels there.

</cita>

Saludos.
- -- 
Ricardo Barberis
Usuario Linux Nº 250625:           http://counter.li.org
Usuario LFS Nº 5121:               http://www.linuxfromscratch.org
LFS en castellano:                 http://www.lfs-es.org
Senior SysAdmin                    Dattatec.com - Hosting Solutions
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