Hi, I have been trying to set several USB Video Grabbers on a few machines. The Video Grabbers are "Oner Touch Video Capture" dongles from Diammond Multimedia, a Connexant device with device ID 1f4d:0102. On an old machine with "Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller" I have three Video Grabbers, one on each USB hub, working flawlessly. My problem is that I can't find a new machine where these devices are also stable. I'm compiling a list of USB hubs where they aren't stable. In all of them, I get tons of TX lenght quirk messages like "xhci_hcd 0000:01:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk?". Activating the TX quirk workaround for these SUB hubs prevents the messages from being logged but unfortunatelly the video grabbers keep being randomly disconnected when recording. I have already seem this same behaviour with the following xHCI hubs: * Renesas uPD720201 - ID 0x1912:0x0014 * Renesas uPD720202 - ID 0x1912:0x0015 * AsMedia ASM1042A - ID 0x1b21:0x1142 Can someone help me further diagnose thi issue? I'm kind of lost right now. Regards, Rodrigo Severo -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
