jmr3927_ioc_reg_in 87 arch/mips/include/asm/txx9/jmr3927.h #define jmr3927_ioc_reg_in(a) (*(volatile unsigned char *)(a)) jmr3927_ioc_reg_in 90 arch/mips/include/asm/txx9/jmr3927.h #define jmr3927_ioc_reg_in(a) (*(volatile unsigned char *)((a)^1))