And Leo? He still doesn't trust the yellow exclamation mark.
Leo stared at the Device Manager. Under "Other Devices," a single entry blinked with the yellow exclamation of damnation: . mediatek cdc driver for windows 10
He opened a text editor and wrote:
The Silent Handshake
The device was a prototype IoT gateway powered by a MediaTek MTK chipset. It was supposed to speak to Windows 10 over USB, presenting itself as a standard Ethernet adapter. Instead, Windows saw a ghost. And Leo
After three weeks of back-and-forth with MediaTek’s FAE, Leo discovered the dirty secret: the MTK chip was toggling a "remote wakeup" flag incorrectly. The Windows CDC driver interpreted this as a power state fault. Leo wrote a small filter driver—a shim—that intercepted the IRPs and suppressed the wakeup feature until the network session was idle. Under "Other Devices," a single entry blinked with