I found that putting 10 to 25µΩ series resistors on the PIC32 D+ and D- helps even more. I'm also having problems with the GL850G too. The PIC VBUS line is looks good on scope. Any suggestions? The hub can be external or bus powered and the problem persists. The GL850 works with another one of our instruments (Digi NS9360 host) without a problem.

I'm connecting printers, drives, and keyboards to the hub. The packets are well within the SOF frame with a 30+us delay after SOF and 100us+ before the next SOF. The GL850 randomly disables a port during active communications. USB Hub Port Disable Problem I modified the Microchip USB stack to support a hub (not a trivial task). I'm having a problem with the Genesys Logic GL850 Hub Controller (A Philips ISP1521 Hub Controller works). USB hub transforms 1 USB Type-C port into 4 USB Type-A ports-ideal. 1-16 of over 2,000 results for 'usb driver hub' AmazonBasics USB 3.1 Type-C to 4 Port USB Hub. Download the latest drivers for your Generic USB Hub to keep your Computer up-to-date.

Gl850a Usb Hub Driver