the document is Motorola's embedded chips dragonball MX1 in Embedded LINU x under the keyboard, procedures used GPIO pins connecting keyboard, a corresponding note

Packet : 21840303keyboraddriver_dragonballmx1(gpio).rar filelist
linux keyboard driver for dragonball MX1(GPIO)\key\key
linux keyboard driver for dragonball MX1(GPIO)\key\key.c
linux keyboard driver for dragonball MX1(GPIO)\key\key.h
linux keyboard driver for dragonball MX1(GPIO)\key\key.o
linux keyboard driver for dragonball MX1(GPIO)\key\keytest.c
linux keyboard driver for dragonball MX1(GPIO)\key\makefile
linux keyboard driver for dragonball MX1(GPIO)\key\mx1_def.h
linux keyboard driver for dragonball MX1(GPIO)\key
linux keyboard driver for dragonball MX1(GPIO)\驱动相应文档.doc
linux keyboard driver for dragonball MX1(GPIO)

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