UCB_IO_DIR 121 include/linux/ucb1400.h return ucb1400_reg_read(ac97, UCB_IO_DIR) & (1 << gpio); UCB_IO_DIR 127 include/linux/ucb1400.h ucb1400_reg_write(ac97, UCB_IO_DIR, dir ? UCB_IO_DIR 128 include/linux/ucb1400.h ucb1400_reg_read(ac97, UCB_IO_DIR) | (1 << gpio) : UCB_IO_DIR 129 include/linux/ucb1400.h ucb1400_reg_read(ac97, UCB_IO_DIR) & ~(1 << gpio));