驱动编程

开发平台：

Unix_Linux

Makefile：源码内容

							ifneq ($(KERNELRELEASE),)
mymodule-objs := gpio.o
obj-m := gpio.o 
else
TOOL_CHAIN_DIR = /opt/toolchains/atheros_ap71/tools/buildroot/build_armeb/bin
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:$(TOOL_CHAIN_DIR)
PWD  := $(shell pwd)
TOOLPREFIX :=armeb-linux-
CROSS_COMPILE   :=  armeb-linux-
CC              :=  $(CROSS_COMPILE)gcc
STRIP		:=  $(CROSS_COMPILE)strip
KERNELPATH = ../../kernel/linux/
CFLAGS := -mbig-endian -D__KERNEL__ -I../../kernel/linux/include -Wall -D__LINUX_ARM_ARCH__=5 -mcpu=xscale -mtune=xscale -DMODULE -D__linux -DCPU=XSCALE -DXSCALE=33 -Wno-trigraphs -malignment-traps -msoft-float -mapcs-32 -fno-common -pipe 
#CFLAGS := -mbig-endian -D__KERNEL__ -I../../kernel/linux/include  -Wall -D__LINUX_ARM_ARCH__=5 -mcpu=xscale -mtune=xscale -DMODULE -D__linux -DCPU=XSCALE -DXSCALE=33 -Wno-trigraphs -malignment-traps -msoft-float -mapcs-32 -fno-common -pipe -Wstrict-prototypes -fno-strict-aliasing -ffreestanding -Os  -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-omit-frame-pointer -mapcs -mno-sched-prolog -mno-thumb-interwork -Wa -Uarm -Wdeclaration-after-statement -D__ixp42X
CFLAGS += -I ../ixp400_xscale_sw/src/include/ -I ../ixp_osal/include/ -I ../ixp_osal/os/linux/include/core/ 
	  -I ../ixp_osal/include/modules/ioMem/ -I ../ixp_osal/include/modules/bufferMgt/ 
	  -I ../ixp_osal/os/linux/include/modules/bufferMgt/ -I ../ixp_osal/include/platforms/ixp400/ 
	  -I ../ixp_osal/os/linux/include/platforms/ixp400/ 
	  -I ../ixp_osal/os/linux/include/platforms/ixp400/ixp425/
TARGET = gpio.o
OBJS = gpio.o
all:  $(TARGET)
	$(MAKE) ARCH=arm CROSS_COMPILE=$(TOOLPREFIX) -C $(KERNELPATH) M=$(PWD)
gpio.o: gpio.c
	$(CC) $(CFLAGS) -c $<
clean:
	rm -rf .*.cmd *.o *.mod.c *.ko .tmp_versions $(TARGET)
	
install:
	cp gpio.ko  ../../target/lib/ 
		
endif	

						