On Tue, Jul 21, 2009 at 7:56 AM, Oliver Neukum<oliver@xxxxxxxxxx> wrote:
> Am Tuesday 21 July 2009 07:50:23 schrieben Sie:
>> # modprobe ehci-hcd
>> ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
>> Platform driver 'au1xxx-ehci' needs updating - please use dev_pm_ops
>> au1xxx-ehci au1xxx-ehci.0: Au1xxx EHCI
>> au1xxx-ehci au1xxx-ehci.0: new USB bus registered, assigned bus number 1
>> au1xxx-ehci au1xxx-ehci.0: irq 37, io mem 0x14020200
>> au1xxx-ehci au1xxx-ehci.0: USB 0.0 started, EHCI 1.00
>> usb usb1: configuration #1 chosen from 1 choice
>> hub 1-0:1.0: USB hub found
>> hub 1-0:1.0: 2 ports detected
>> usb 1-1: new high speed USB device using au1xxx-ehci and address 2
>> usb 1-1: configuration #1 chosen from 1 choice
>> hub 1-1:1.0: USB hub found
>> hub 1-1:1.0: 4 ports detected
>> usb 1-1.2: new full speed USB device using au1xxx-ehci and address 3
>> usb 1-1.2: configuration #1 chosen from 1 choice
>> cdc_acm 1-1.2:1.0: ttyACM0: USB ACM device
>
> Did you use a hub?
Yes. This is an embedded device with a high-speed hub directly
connected to one of the chips' USB ports, and the CDC device on one
of the hubs' ports.
# lsusb
Bus 001 Device 004: ID 1546:01a5 U-Blox AG
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
# lsusb -t
Bus# 1
`-Dev# 1 Vendor 0x1d6b Product 0x0002
`-Dev# 2 Vendor 0x0424 Product 0x2514
`-Dev# 4 Vendor 0x1546 Product 0x01a5
Thanks!
Manuel Lauss
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