Yeah the ehci device isn't generating any interupts. It is PCI or BIOS
issue.

On Mon, 22 Mar 2004, Mark Watts wrote:

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> > What is the output when you load the drivers and then when you plug in the
> > drive?
>
> This is in dmesg after boot when the drivers have been loaded:
>
> drivers/usb/core/usb.c: registered new driver usbfs
> drivers/usb/core/usb.c: registered new driver hub
> ohci_hcd: 2004 Feb 02 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
> ohci_hcd: block sizes: ed 64 td 64
> ohci_hcd 0000:01:00.0: OHCI Host Controller
> ohci_hcd 0000:01:00.0: irq 19, pci mem f8819000
> ohci_hcd 0000:01:00.0: new USB bus registered, assigned bus number 1
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 3 ports detected
> ohci_hcd 0000:01:00.1: OHCI Host Controller
> ohci_hcd 0000:01:00.1: irq 19, pci mem f881b000
> ohci_hcd 0000:01:00.1: new USB bus registered, assigned bus number 2
> hub 2-0:1.0: USB hub found
> hub 2-0:1.0: 3 ports detected
> drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver
> v2.1
> uhci_hcd 0000:01:0b.0: UHCI Host Controller
> uhci_hcd 0000:01:0b.0: irq 17, io base 0000a800
> uhci_hcd 0000:01:0b.0: new USB bus registered, assigned bus number 3
> hub 3-0:1.0: USB hub found
> hub 3-0:1.0: 2 ports detected
> uhci_hcd 0000:01:0b.1: UHCI Host Controller
> uhci_hcd 0000:01:0b.1: irq 18, io base 0000a880
> uhci_hcd 0000:01:0b.1: new USB bus registered, assigned bus number 4
> hub 4-0:1.0: USB hub found
> hub 4-0:1.0: 2 ports detected
> ehci_hcd 0000:01:0b.2: EHCI Host Controller
> ehci_hcd 0000:01:0b.2: irq 19, pci mem f881d800
> ehci_hcd 0000:01:0b.2: new USB bus registered, assigned bus number 5
> ehci_hcd 0000:01:0b.2: USB 2.0 enabled, EHCI 1.00, driver 2003-Dec-29
> hub 5-0:1.0: USB hub found
> hub 5-0:1.0: 4 ports detected
>
>
> When I plug the drive into the (alledged) USB2 ports get the following:
>
> Mar 22 16:44:57 arp13wp11 kernel: usb 4-1: new full speed USB device using
> address 3
> Mar 22 16:44:57 arp13wp11 kernel: scsi2 : SCSI emulation for USB Mass Storage
> devices
> Mar 22 16:44:57 arp13wp11 kernel:   Vendor: IC25N020  Model: ATMR04-0
> Rev: 0811
> Mar 22 16:44:57 arp13wp11 kernel:   Type:   Direct-Access
> ANSI SCSI revision: 02
> Mar 22 16:44:57 arp13wp11 kernel: SCSI device sdb: 39070080 512-byte hdwr
> sectors (20004 MB)
> Mar 22 16:44:57 arp13wp11 kernel: sdb: assuming drive cache: write through
> Mar 22 16:44:57 arp13wp11 kernel:  /dev/scsi/host2/bus0/target0/lun0: p1
> Mar 22 16:44:57 arp13wp11 kernel: Attached scsi disk sdb at scsi2, channel 0,
> id 0, lun 0
> Mar 22 16:44:57 arp13wp11 kernel: Attached scsi generic sg1 at scsi2, channel
> 0, id 0, lun 0,  type 0
> Mar 22 16:44:57 arp13wp11 modprobe: FATAL: Module scsimon not found.
> Mar 22 16:44:57 arp13wp11 perl: drakupdate_fstab called with --auto --add
> /dev/scsi/host2/bus0/target0/lun0/part1
> Mar 22 16:44:58 arp13wp11 scsi.agent[28728]: disk at
> /devices/pci0000:00/0000:00:06.0/0000:01:0b.1/usb4/4-1/4-1:1.0/host2/2:0:0:0
>
> The scsimon stuff is probably harmless since its a relic of the 2.4 kernel.
>
>
> > Also, are you getting interupts for the EHCI driver?
>
> /proc/interrupts shows the following lines for usb:
>
>  18:     170791          1   IO-APIC-level  uhci_hcd, eth0
>  19:          0          0   IO-APIC-level  ohci_hcd, ohci_hcd, ehci_hcd
>
> Kernel was booted with acpi=ht
>
> I'll try with that line removed.
>
> Mark.
>
> - --
> Mark Watts
> Senior Systems Engineer
> QinetiQ TIM
> St Andrews Road, Malvern
> GPG Public Key ID: 455420ED
>
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