PIA_REG_PADWIDTH 19 include/linux/mc6821.h #ifndef PIA_REG_PADWIDTH PIA_REG_PADWIDTH 28 include/linux/mc6821.h u_char pad1[PIA_REG_PADWIDTH]; PIA_REG_PADWIDTH 30 include/linux/mc6821.h u_char pad2[PIA_REG_PADWIDTH]; PIA_REG_PADWIDTH 35 include/linux/mc6821.h u_char pad3[PIA_REG_PADWIDTH]; PIA_REG_PADWIDTH 37 include/linux/mc6821.h u_char pad4[PIA_REG_PADWIDTH];