Hi, kun peng <kunpeng0891@xxxxxxxxx> writes: > Hi ， I'm using the 4*A53 with DWC3 USB controller, my hardware to work > like a USB camera and so make use of the USB 3.0 UVC gadget driver。 > usb3.0 isoc transfer with missisoc -18，larger maxburst is set, the > more -18 appears。 > but from trace info, the trb has been put in advance。 > > test setting: > dwc3 driver version：5.12 > PC： potplayer > > maxpacket : 3072 > maxburst : 15 > interval : 1 > UVC_NUM_REQUESTS: 8 sorry, you're running 4.14.74 kernel. That's far too old for this forum to help you. Try reproducing with the latest v5.13-rc kernel. -- balbi
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