To check if Linux sees it, you would run:
system_profiler SPUSBDataType | grep -A 10 "1e3d:198a" vid = 1e3d pid = 198a
| Field | Value | Meaning | |--------------|---------------------------|-----------------------------------------| | VID (hex) | 1e3d | Chipsa Technologies (Shenzhen) | | PID (hex) | 198a | Custom USB‑to‑UART/I2C/SPI bridge, enhanced mode | | Typical Use | Low‑cost programming adapter, debug probe, IoT interface | | Driver | ch341 / usbserial (Linux) | Works out of the box on most modern OSes | | Rarity | Uncommon – likely a special firmware variant or OEM product | To check if Linux sees it, you would
Typical features of the CH341/346 family: To check if Linux sees it
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