Best I can tell from a USB type-C controller datasheet TI's TPS25814, VBUS control and CC pins sensiing is done entirely on the controller chip. TPS25814 has I2C config but only for charging power settings. Normal VBUS control by such a host-side controller seems to be entirely automatic. So there might be nothing much to diagnose on the host side.
Statistics: Posted by katak255 — Wed May 08, 2024 1:50 am