1 Reply Latest reply on Jan 25, 2017 3:38 AM by nishanta_46

    The USBVideoClassBulk sdk example isn't working on ubuntu 14.4

      I've tried to run the USBVideoClassBulk example from the sdk as is. It is compiled and uploaded to CX3 evaluation board, but I can't see the video device on my linux machine.


      There is some problem with usb descriptors, cause I get this message in dmesg:


      [71795.430285] usb 3-2.2: Product: FX3
      [71795.430287] usb 3-2.2: Manufacturer: Cypress
      [71795.431324] uvcvideo: Probing generic UVC device 2.2
      [71795.431330] uvcvideo: no class-specific streaming interface descriptors found.
      [71795.431337] uvcvideo: Found a Status endpoint (addr 82).
      [71795.431340] uvcvideo: Found UVC 1.00 device FX3 (04b4:4722)
      [71795.431522] uvcvideo: Scanning UVC chain: OT 4 <- XU 3 <- PU 2 <- IT 1
      [71795.431528] uvcvideo: Found a valid video chain (1 -> 4).
      [71795.431529] uvcvideo: No streaming interface found for terminal 4.
      [71795.431591] input: FX3 as /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2.2/3-2.2:1.0/input/input75


      and the "lsusb -v" for cypress device seems to be cut in th middle.