[mythtv-users] Alternative to HDPVR

[Rajil Saraswat]

On 12/23/2017 09:49 PM, Stephen Worthington wrote:
> I presume the problem with USB 3 is that the NUC does not have any USB
> 2 ports.  So do you have a USB 2 hub you could plug into one of the
> USB 3 ports - that might help.
Is HDPVR incompatibility with USB3 a known problem?

My HDPVR freezes while recording the show. It is connected to a USB3
port. A second HDPVR connected to another USB3 port works fine. The
manual of the Supermicro X11SAT-F board
(https://www.supermicro.com/products/motherboard/Xeon/C236_C232/X11SAT-F.cfm)
says that both USB2 and USB3 ports are available. However, lspci shows
only a usb3 controller

 00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI
Controller (rev 31)

I tried disabling the xhci module in the kernel. However USB stopped
working altogether (EHCI didnt work). I tried to put in a USB 2 hub
between HDPVR and the onboard port, but still one of the HDPVR freezes.
Here is how the usb tree looks like,

# lsusb -t
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
    |__ Port 7: Dev 9, If 0, Class=Mass Storage, Driver=usb-storage, 480M
    |__ Port 8: Dev 2, If 1, Class=Video, Driver=uvcvideo, 480M
    |__ Port 8: Dev 2, If 2, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 8: Dev 2, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 8: Dev 2, If 3, Class=Audio, Driver=snd-usb-audio, 480M
    |__ Port 10: Dev 3, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 3: Dev 6, If 0, Class=Vendor Specific Class,
Driver=hdpvr, 480M
        |__ Port 1: Dev 5, If 0, Class=Vendor Specific Class,
Driver=hdpvr, 480M
    |__ Port 11: Dev 4, If 0, Class=Vendor Specific Class,
Driver=mceusb, 12M
    |__ Port 14: Dev 7, If 0, Class=Hub, Driver=hub/4p, 480M
        |__ Port 1: Dev 8, If 0, Class=Human Interface Device,
Driver=usbhid, 1.5M
        |__ Port 1: Dev 8, If 1, Class=Human Interface Device,
Driver=usbhid, 1.5M

Will this USB2 controller be useful,
https://www.amazon.com/gp/product/B0026I4DZ2 ?

Thanks