File list (Check if you may need any files):
gprs_pckey\gprs_pckey\Makefile
..........\..........\main.o
..........\..........\gprs.c
..........\..........\gprs.cbak
..........\..........\gprs.h
..........\..........\keyshell.c
..........\..........\main.c
..........\..........\readme
..........\..........\tty.c
..........\..........\tty.h
..........\..........\tty.o
..........\..........\gprs.o
..........\..........\tty.c~
..........\..........\keyshell.o
..........\..........\gprs
..........\gprs_pckey
gprs_pckey
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