Bus 002 Device 003: ID 2109:2811 VIA Labs, Inc. VL813 USB 3.0 Hub bcdDevice: 03c1 bMaxPower: 100mA bmAttributes: 0xe0 (Self Powered, Remote Wakeup) Hub SuperSpeed: bNbPorts: 4 bPowerSwitching: Ganged (not per-port) bCompoundDevice: No
: Uses an advanced CMOS process to support low-power states, reducing overall system power consumption. How to Update Via VL-813 USB 3.0 Hub Controller Firmware Version 03C1
Q: Is the firmware update compatible with existing devices? A: Yes, the firmware update is backward compatible with USB 2.0 and USB 1.1 devices. Bus 002 Device 003: ID 2109:2811 VIA Labs, Inc
Updating the VL-813 firmware is not as simple as updating a driver. You usually need: A: Yes, the firmware update is backward compatible
Many users reported "Power surge on hub port" errors when charging tablets or phones. 03C1 refined the overcurrent detection threshold, reducing false positives while still maintaining safety compliance.
(later versions such as 03E0 or 04XX exist for some VL-813 variants), but it represents a mature, stable release that many manufacturers adopted for product runs between 2015 and 2018. If you check your USB hub’s firmware via Device Manager (Windows) or lsusb -v (Linux), seeing 03C1 typically means your hub is running a reliable mid-cycle firmware.
On Linux, enabling CONFIG_USB_SUSPEND can cause the VL-813 with 03C1 to enter a state where it forgets to wake a single low-speed device (like a mouse). The fix is usually adding usbcore.quirks=2109:2811:0x200 to your kernel boot parameters (disabling link power management for this chip).