Created attachment 383446 [details] emerge --info I have ESXi with USB3.0 card passed through to Gentoo guest. I'm connecting to the USB 3.0 card two webcams (Genius WideCam 1050). One directly and one via usb-hub (I've tried both USB 2.0 and 3.0). I can access (via Motion) only one of them, for another one Motion tells: Code: Aug 18 23:13:20 dad motion: [1] Retrying until successful connection with camera Aug 18 23:13:20 dad motion: [1] cap.driver: "uvcvideo" Aug 18 23:13:20 dad motion: [1] cap.card: "WideCam 1050" Aug 18 23:13:20 dad motion: [1] cap.bus_info: "usb-0000:1c:00.0-3.2" Aug 18 23:13:20 dad motion: [1] cap.capabilities=0x84000001 Aug 18 23:13:20 dad motion: [1] - VIDEO_CAPTURE Aug 18 23:13:20 dad motion: [1] - STREAMING Aug 18 23:13:20 dad motion: [1] Error selecting input 0 VIDIOC_S_INPUT: Aug 18 23:13:20 dad motion: [1] ioctl (VIDIOCGCAP): /var/log/messages constantly fills with the same messages: Code: Aug 18 23:05:24 dad kernel: [165294.803703] xhci_hcd 0000:1c:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? Aug 18 23:05:24 dad kernel: [165294.807743] xhci_hcd 0000:1c:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? Aug 18 23:05:24 dad kernel: [165294.891629] xhci_hcd 0000:1c:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? Aug 18 23:05:29 dad kernel: [165299.776153] handle_tx_event: 579 callbacks suppressed Aug 18 23:05:29 dad kernel: [165299.776162] xhci_hcd 0000:1c:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? Aug 18 23:05:29 dad kernel: [165299.780140] xhci_hcd 0000:1c:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? Aug 18 23:05:29 dad kernel: [165299.784130] xhci_hcd 0000:1c:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? some info: uname -a Code: Linux dad 3.14.14-gentoo #1 SMP PREEMPT Sat Aug 16 03:36:40 MSK 2014 x86_64 Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz GenuineIntel GNU/Linux zcat /proc/config.gz | grep -i hci | grep -i usb Code: CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_XHCI_HCD=y CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set CONFIG_USB_EHCI_PCI=y CONFIG_USB_EHCI_HCD_PLATFORM=y CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_HCD_PCI=y # CONFIG_USB_OHCI_HCD_PLATFORM is not set CONFIG_USB_UHCI_HCD=y lspci Code: 00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 01) 00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 01) 00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 08) 00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01) 00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 08) 00:07.7 System peripheral: VMware Virtual Machine Communication Interface (rev 10) 00:0f.0 VGA compatible controller: VMware SVGA II Adapter 00:11.0 PCI bridge: VMware PCI bridge (rev 02) 00:15.0 PCI bridge: VMware PCI Express Root Port (rev 01) 00:15.1 PCI bridge: VMware PCI Express Root Port (rev 01) 00:15.2 PCI bridge: VMware PCI Express Root Port (rev 01) 00:15.3 PCI bridge: VMware PCI Express Root Port (rev 01) 00:15.4 PCI bridge: VMware PCI Express Root Port (rev 01) 00:15.5 PCI bridge: VMware PCI Express Root Port (rev 01) 00:15.6 PCI bridge: VMware PCI Express Root Port (rev 01) 00:15.7 PCI bridge: VMware PCI Express Root Port (rev 01) 00:16.0 PCI bridge: VMware PCI Express Root Port (rev 01) 00:16.1 PCI bridge: VMware PCI Express Root Port (rev 01) 00:16.2 PCI bridge: VMware PCI Express Root Port (rev 01) 00:16.3 PCI bridge: VMware PCI Express Root Port (rev 01) 00:16.4 PCI bridge: VMware PCI Express Root Port (rev 01) 00:16.5 PCI bridge: VMware PCI Express Root Port (rev 01) 00:16.6 PCI bridge: VMware PCI Express Root Port (rev 01) 00:16.7 PCI bridge: VMware PCI Express Root Port (rev 01) 00:17.0 PCI bridge: VMware PCI Express Root Port (rev 01) 00:17.1 PCI bridge: VMware PCI Express Root Port (rev 01) 00:17.2 PCI bridge: VMware PCI Express Root Port (rev 01) 00:17.3 PCI bridge: VMware PCI Express Root Port (rev 01) 00:17.4 PCI bridge: VMware PCI Express Root Port (rev 01) 00:17.5 PCI bridge: VMware PCI Express Root Port (rev 01) 00:17.6 PCI bridge: VMware PCI Express Root Port (rev 01) 00:17.7 PCI bridge: VMware PCI Express Root Port (rev 01) 00:18.0 PCI bridge: VMware PCI Express Root Port (rev 01) 00:18.1 PCI bridge: VMware PCI Express Root Port (rev 01) 00:18.2 PCI bridge: VMware PCI Express Root Port (rev 01) 00:18.3 PCI bridge: VMware PCI Express Root Port (rev 01) 00:18.4 PCI bridge: VMware PCI Express Root Port (rev 01) 00:18.5 PCI bridge: VMware PCI Express Root Port (rev 01) 00:18.6 PCI bridge: VMware PCI Express Root Port (rev 01) 00:18.7 PCI bridge: VMware PCI Express Root Port (rev 01) 03:00.0 Serial Attached SCSI controller: VMware PVSCSI SCSI Controller (rev 02) 04:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01) 0b:00.0 Serial Attached SCSI controller: VMware PVSCSI SCSI Controller (rev 02) 0c:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01) 13:00.0 Serial Attached SCSI controller: VMware PVSCSI SCSI Controller (rev 02) 14:00.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01) 1b:00.0 Serial Attached SCSI controller: VMware PVSCSI SCSI Controller (rev 02) 1c:00.0 USB controller: Renesas Technology Corp. uPD720201 USB 3.0 Host Controller (rev 03) lsusb Code: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 085: ID 0458:7088 KYE Systems Corp. (Mouse Systems) WideCam 1050 Bus 001 Device 021: ID 0458:7088 KYE Systems Corp. (Mouse Systems) WideCam 1050 Bus 001 Device 120: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Any ideas how to fix it ? Thanks.
As I understand it's a kernel problem, not Gentoo's one. http://www.spinics.net/lists/linux-usb/msg112611.html https://www.google.ru/webhp?sourceid=chrome-instant&ion=1&espv=2&es_th=1&ie=UTF-8#newwindow=1&qscrl=1&tbs=qdr:m&q=site%3Akernel.org+xhci_hcd++WARN+Successful+completion+on+short+TX%3A+needs+XHCI_TRUST_TX_LENGTH+quirk
I think this is fixed by: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/usb/host/xhci-pci.c?id=6db249ebefc6bf5c39f35dfaacc046d8ad3ffd70 Which is in all kernels >= v3.15.0. Can you minimally test the latest kernel, which is 3.18.1 as of this writing.
