Linux按鍵驅動程序設計(3)-按鍵操做硬件實現

1.複習裸機按鍵操做驅動node #define GPGCON  (volatile unsigned long *)0x56000060   /*  * K1,K2,K3,K4對應GPG0、GPG三、GPG五、GPG6  */ #define GPG0_int     (0x2<<(0*2)) #define GPG3_int     (0x2<<(3*2)) #define GPG5_int

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