Usb 2-2: new SuperSpeed USB device number 8 using xhci_hcd The second camera again works well with small image sizes, but when configured to larger sizes, I receive USB disconnects and re-connects: No error is logged, only read-errors from the user space application. The first camera doesn't work at all (not even reading / writing settings). The other camera works when configured to small image sizes, but the frame rate drastically drops when transferring large images (like 1 frame per second) Xhci_hcd 0000:01:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? Usb 2-1: usbfs: process 9843 did not claim interface 2 before use Usb 2-2: usbfs: process 9843 did not claim interface 2 before use When connected to one of the PCIe cards I experience the following problemsįor the first camera, reading and writing the camera settings work but when starting the image transfer I see the following errors: Both work well when connected to the USB2 ports, or to a USB3 port on a Linux PC. I have two different USB3 cameras from different manufacture. Problems seem to occur when I use devices with higher data rates. I tested a USB 3.0 flash drive which seemed to work fine with both cards, and gets a read speed of 55 MB/s. USB devices that are plugged-in are detected and some actually seem to work without problems. The PCI bridge is correctly detected at boot, as is the USB PCIe card. My hardware design very closely matches the PCIe reference design, and I'm running a small Linux system based on the Xilinx kernel v2015.4.01 (Linux 4.0.0). I have been using two different USB 3.0 cards, one with a NEC and one with a VLI chip, but have experienced (different) problems with each.

I'm trying to get USB 3.0 running through the PCIe slot.

Usb pcie usb 3 card