uLinks USOTL4 RS422/485 Adapter
USB ID 0856:ac01 · B&B Electronics
| Vendor | B&B Electronics |
|---|---|
| Vendor ID | 0856 |
| Device ID | ac01 |
| Windows hardware ID | USB\VID_0856&PID_AC01 |
| Linux modalias | usb:v0856pAC01 |
| Linux driver | ftdi_sio |
Frequently asked questions
Which device has USB ID 0856:ac01?
USB ID 0856:ac01 is “uLinks USOTL4 RS422/485 Adapter” made by B&B Electronics (vendor ID 0856, device ID ac01).
Which Linux driver supports uLinks USOTL4 RS422/485 Adapter?
In Linux kernel 6.12 the device is bound to the driver ftdi_sio (source under drivers/usb/serial). The driver is normally loaded automatically when the device is detected.
How do I check whether uLinks USOTL4 RS422/485 Adapter is in my computer?
On Linux, lsusb -d 0856:ac01 shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_0856&PID_AC01.
How do I see which driver is currently in use?
lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.