gpio驱动

leddrv.c为驱动源程序

writeled.c为应用程序



writeled.c 编译方式 arm-elf-gcc -Wall -O2 -Wl,-elf2flt -o writeled writeled.c

leddrv.c 编译方式 arm-elf-gcc -D__KERNEL__ -I你的uClinux目录/linux-2.4.x/include-Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fno-common -pipe -fno-builtin -D__linux__ -DNO_MM -mapcs-32 -march=armv4 -mtune=arm7tdmi -mshort-load-bytes -msoft-float -DMODULE -c -o leddrv.o leddrv.c