menu "FCA9555 I/O Expander"

    config FCA9555_I2C_TIMEOUT_MS
        int "I2C transfer timeout (ms)"
        default 100
        range 10 1000
        help
            Fail fast on a missing chip. 100 ms is enough for an 8-byte
            sequential read at 400 kHz.
            芯片无应答时尽快失败。400 kHz 下连读 8 字节，100 ms 足够。

endmenu
