When ehci_hcd module is removed I get the following messages: [ 2166.112000] scsi3 : SCSI emulation for USB Mass Storage devices [ 2166.112000] usb-storage: device found at 4 [ 2166.112000] usb-storage: waiting for device to settle before scanning [ 2171.112000] usb-storage: device scan complete [ 2171.116000] scsi 3:0:0:0: Direct-Access HP Photosmart C3180 1.00 PQ: 0 ANSI: 2 [ 2171.120000] sd 3:0:0:0: Attached scsi removable disk sdb [ 2171.120000] sd 3:0:0:0: Attached scsi generic sg2 type 0
As soon as I modprobe ehci_hcd: [ 2185.748000] drivers/usb/class/usblp.c: usblp0: removed [ 2509.324000] ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 18 [ 2509.324000] PCI: Setting latency timer of device 0000:00:1d.7 to 64 [ 2509.324000] ehci_hcd 0000:00:1d.7: EHCI Host Controller [ 2509.324000] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 5 [ 2509.324000] ehci_hcd 0000:00:1d.7: debug port 1 [ 2509.324000] PCI: cache line size of 32 is not supported by device 0000:00:1d.7 [ 2509.324000] ehci_hcd 0000:00:1d.7: irq 18, io mem 0x20000000 [ 2509.328000] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 [ 2509.328000] usb usb5: configuration #1 chosen from 1 choice [ 2509.328000] hub 5-0:1.0: USB hub found [ 2509.332000] hub 5-0:1.0: 8 ports detected [ 2509.404000] usb 2-1: USB disconnect, address 4 [ 2509.772000] usb 5-3: new high speed USB device using ehci_hcd and address 2 [ 2510.772000] ehci_hcd 0000:00:1d.7: Unlink after no-IRQ? Controller is probably using the wrong IRQ. [ 2521.316000] usb 5-3: device not accepting address 2, error -110 [ 2521.428000] usb 5-3: new high speed USB device using ehci_hcd and address 3 [ 2532.972000] usb 5-3: device not accepting address 3, error -110 [ 2533.084000] usb 5-3: new high speed USB device using ehci_hcd and address 4 [ 2543.508000] usb 5-3: device not accepting address 4, error -110 [ 2543.620000] usb 5-3: new high speed USB device using ehci_hcd and address 5 [ 2554.044000] usb 5-3: device not accepting address 5, error -110 -- USB devices are not recognized when having ehci_hcd modprobed https://bugs.launchpad.net/bugs/88746 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
