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-D__KERNEL__ ！！

这不是在编写驱动程序吗？和QT有什么关系

我是按照你们光盘里面的 QT2410开发小记：挑战linux下的驱动程序下的 编自己的驱动程序，驱动按键

一、将“obj-$(CONFIG_QT2410_BUTTONS) += qt2410-buttons.o”放到上面提到的“makefile”中类似语句的最后一行，保存。二、将“dep_tristate 'Support QT2410 Buttons' CONFIG_QT2410_BUTTONS”放到“config.in”中第6行——“comment 'Character devices'”之后，保存退出。三、把“qt2410-buttons.c”；将其放到上面两个文件的所在目录。
[root@localhost root]# cd /home/test/kernel
[root@localhost kernel]# make menuconfig
rm -f include/asm-arm/arch include/asm-arm/proc
(cd include/asm-arm; ln -sf arch-s3c2410 arch; ln -sf proc-armv proc)
rm -f include/asm
( cd include ; ln -sf asm-arm asm)
make -C scripts/lxdialog all
make[1]: Entering directory `/home/test/kernel/scripts/lxdialog'
make[1]: Leaving directory `/home/test/kernel/scripts/lxdialog'
/bin/sh scripts/Menuconfig arch/arm/config.in
Using defaults found in .config
Preparing scripts: functions, parsing...........................................
..............................done.

Saving your kernel configuration...

*** End of Linux kernel configuration.
*** Check the top-level Makefile for additional configuration.
*** Next, you must run 'make dep'.

[root@localhost kernel]# make modules
gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o scripts/split-include
scripts/split-include.c
scripts/split-include include/linux/autoconf.h include/config
make -C kernel CFLAGS="-D__KERNEL__ -I/home/test/kernel/include -Wall -Wstrict-
prototypes -Wno-trigraphs -Os -mapcs -fno-strict-aliasing -fno-common -fno-commo
n -pipe -mapcs-32 -march=armv4 -mtune=arm9tdmi -mshort-load-bytes -msoft-float -
DMODULE" MAKING_MODULES=1 modules
make[1]: Entering directory `/home/test/kernel/kernel'
make[1]: Nothing to be done for `modules'.
make[1]: Leaving directory `/home/test/kernel/kernel'
make -C drivers CFLAGS="-D__KERNEL__ -I/home/test/kernel/include -Wall -Wstrict
-prototypes -Wno-trigraphs -Os -mapcs -fno-strict-aliasing -fno-common -fno-comm
on -pipe -mapcs-32 -march=armv4 -mtune=arm9tdmi -mshort-load-bytes -msoft-float
-DMODULE" MAKING_MODULES=1 modules
make[1]: Entering directory `/home/test/kernel/drivers'
make -C block modules
make[2]: Entering directory `/home/test/kernel/drivers/block'
make[2]: Nothing to be done for `modules'.
make[2]: Leaving directory `/home/test/kernel/drivers/block'
make -C cdrom modules
make[2]: Entering directory `/home/test/kernel/drivers/cdrom'
make[2]: Nothing to be done for `modules'.
make[2]: Leaving directory `/home/test/kernel/drivers/cdrom'
make -C char modules
make[2]: Entering directory `/home/test/kernel/drivers/char'
/opt/host/armv4l/bin/armv4l-unknown-linux-gcc -D__KERNEL__ -I/home/test/kernel/i
nclude -Wall -Wstrict-prototypes -Wno-trigraphs -Os -mapcs -fno-strict-aliasing
-fno-common -fno-common -pipe -mapcs-32 -march=armv4 -mtune=arm9tdmi -mshort-loa
d-bytes -msoft-float -DMODULE -DKBUILD_BASENAME=qt2410_buttons -c -o qt2410-b
uttons.o qt2410-buttons.c
make[2]: /opt/host/armv4l/bin/armv4l-unknown-linux-gcc: Command not found
make[2]: *** [qt2410-buttons.o] Error 127
make[2]: Leaving directory `/home/test/kernel/drivers/char'
make[1]: *** [_modsubdir_char] Error 2
make[1]: Leaving directory `/home/test/kernel/drivers'
make: *** [_mod_drivers] Error 2