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List:       comedi
Subject:    kcomedilib - how to use
From:       Stanisław_Raczyński <sutashu () gmail ! com>
Date:       2005-09-29 20:37:28
Message-ID: ab3226c20509291337776c053e () mail ! gmail ! com
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Hello,

I'm trying to compile a Linux kernel module that uses RTAI's realtime
tasks and kcomedilib for data acquisition. Unfortunately, I can't make
it to compile (it compiles smoothly until I try to make use of
kcomedilib). When I include <comedilib.h> file, I get a bunch of
errors:

In file included from /usr/include/features.h:296,
                 from /usr/include/sys/ioctl.h:22,
                 from /usr/local/include/comedilib.h:29,
                 from /tmp/rtaquirer/aquirer.c:10:
/usr/include/sys/cdefs.h:183:1: warning: "__attribute_pure__" redefined
In file included from include/linux/compiler.h:24,
                 from include/asm-generic/siginfo.h:4,
                 from include/asm/siginfo.h:4,
                 from include/asm/adeos.h:26,
                 from include/linux/adeos.h:25,
                 from include/linux/sched.h:8,
                 from include/linux/module.h:10,
                 from /tmp/rtaquirer/aquirer.c:2:
include/linux/compiler-gcc3.h:22:1: warning: this is the location of
the previous definition
(....and so on...)

Here's my Makefile:

obj-m        := aquirer.o

KDIR	     := /lib/modules/$(shell uname -r)/build
PWD          := $(shell pwd)
EXTRA_CFLAGS := -I/usr/realtime/include -I/usr/local/include -I/usr/include/

default:
	KBUILD_VERBOSE=1 $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules

I use:

Gentoo Linux 2.6.8.1-adeos i586 Geode(TM) Integrated Processor by
National Semi CyrixInstead
RTAI[hal]: 3.1 mounted over Adeos 2.6r7/x86.
comedi 0.7.70
comedilib 0.7.22
gcc version 3.3.4 20040623

Please help.

Best wishes,
Stanislaw

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