Re: Nokia c110 driver

[Randy.Dunlap]

On Sun, 29 Feb 2004 09:51:56 +0200 Kliment Yanev wrote:

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| Randy.Dunlap wrote:
| | All those errors should go away if you build the module correctly.
| | Please read Documentation/kbuild/m*.txt or see LWN.net article
| | on building modules:
| |   http://lwn.net/Articles/21823/
| 
| Okay, using a kbuild makefile I still get tons of errors, though most of
| the original ones are gone:
| 
| make -C /lib/modules/2.6.3-rc2-mm1/build
| SUBDIRS=/home/kliment/Desktop/nokia_c110/src modules
| make[1]: Entering directory `/usr/src/linux-2.6.3-rc2-mm1'
| *** Warning: Overriding SUBDIRS on the command line can cause
| ***          inconsistencies
| make[2]: `arch/i386/kernel/asm-offsets.s' is up to date.
| ~  CHK     include/asm-i386/asm_offsets.h
| ~  CC [M]  /home/kliment/Desktop/nokia_c110/src/dmodule.o
| In file included from /home/kliment/Desktop/nokia_c110/src/nokia_info.h:89,
| ~                 from /home/kliment/Desktop/nokia_c110/src/dmodule.c:35:
| /home/kliment/Desktop/nokia_c110/src/nokia_priv.h:43:1: warning: "HZ"
| redefined

This shouldn't define HZ -- or make it conditional.

| In file included from include/linux/sched.h:4,
| ~                 from include/linux/module.h:10,
| ~                 from /home/kliment/Desktop/nokia_c110/src/nokia_info.h:42,
| ~                 from /home/kliment/Desktop/nokia_c110/src/dmodule.c:35:
| include/asm/param.h:5:1: warning: this is the location of the previous
| definition
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:57: warning: static
| declaration for `cs_error' follows non-static

'cs_error' is a function in the kernel.  Rename this local one.

| /home/kliment/Desktop/nokia_c110/src/dmodule.c: In function `cs_error':
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:61: warning: implicit
| declaration of function `CardServices'
| /home/kliment/Desktop/nokia_c110/src/dmodule.c: In function `d_init_module':
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:115: warning: implicit
| declaration of function `register_pcmcia_driver'
| /home/kliment/Desktop/nokia_c110/src/dmodule.c: In function
| `d_cleanup_module':
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:124: warning: implicit
| declaration of function `unregister_pccard_driver'
| /home/kliment/Desktop/nokia_c110/src/dmodule.c: In function
| `d_driver_attach':
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:182: error: structure has
| no member named `release'
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:183: error: structure has
| no member named `release'
| /home/kliment/Desktop/nokia_c110/src/dmodule.c: In function
| `d_driver_event':
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:401: error: structure has
| no member named `release'
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:402: error: structure has
| no member named `release'
| /home/kliment/Desktop/nokia_c110/src/dmodule.c:407: error: structure has
| no member named `bus'
| make[2]: *** [/home/kliment/Desktop/nokia_c110/src/dmodule.o] Error 1
| make[1]: *** [/home/kliment/Desktop/nokia_c110/src] Error 2
| make[1]: Leaving directory `/usr/src/linux-2.6.3-rc2-mm1'
| make: *** [default] Error 2
| 
| 
| Other than the param.h error, all the errors related to kernel headers
| are gone now. Thank you for the suggestion. However, what do I do next?
| I got the pci-pcmcia converter working btw. It needed its base address
| entered manually as well as irq scanning disabled and it would hang the
| machine otherwise...Therefore I can test this now if it compiles.

All of the kernel interface functions to PCMCIA Card Services have
changed in 2.6 so quite a bit of code will have to be changed here.
You can ask Nokia for a 2.6 update since it is now released, or
you can ask for help from the linux-wlan (or wlan-ng) project people,
or you can compare a 2.4 PCMCIA kernel driver to a 2.6 PCMCIA kernel
driver to see what changes are required.

--
~Randy
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