add gpio control scripts

guowenxue

2022-04-14 b97b50d6ec47b5c239c468f9b799aa26f0f5be4b

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PWD=$(shell pwd )
 
LIBNAME=$(shell basename ${PWD} )
TOPDIR=$(shell dirname ${PWD} )
 
all: clean
    @rm -f *.o
    @${CROSSTOOL}gcc ${CFLAGS} -I${TOPDIR} -c *.c 
    ${CROSSTOOL}ar -rcs  lib${LIBNAME}.a *.o
 
clean:
    @rm -f *.o
    @rm -f *.a
 
distclean:
    @make clean
    @rm -f cscope.* tags