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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1099351/tusb4020bi-can-the-i2c-smbus-read-which-ports-are-connected-to-external-devices
I2C/SMBus能否 读取连接到外部设备的端口？
您好Xiaofu：
否集线器寄存器不能用于检查连接状态。
此致，
JMMN
是否有任何TI部件支持此功能？ 或者它是否可以通过IO引脚辨别？
没有TI部件通过寄存器或引脚状态支持此功能。
