Re: [linux-usb-devel] [PATCH] Ohci-hcd: fix endless loop (secondtake)

[Colin Leroy]

On 30 Nov 2004 at 09h11, Benjamin Herrenschmidt wrote:

Hi, 

> Hrm... there is some problem in communication here. I asked you which
> controller out of the 3 OHCIs you have in this machine is the culprit,
> you give me a list of all of them but without PCI IDs ... From the
> archive, I think it was USB bus #4 no ? not sure which of these
> controllers it matches. 
> 
> The iBook G4 has actually 3 "Apple" OHCI's in KeyLargo/Intrepid but
> with 2 of them disabled by the firmware (not wired) plus one NEC USB2
> controller (which contains 1 EHCI and 2 OHCIs) on the PCI bus. The
> code managing their sleep process is very different.

Sorry, i was away and had a problem of /proc/bus/usb being empty. As my
link was on the wireless stick I couldn't reload usb modules. The
culprit is usb 4-1, I think it would be this one (as the stick is bus
004 device 001):

Bus 004 Device 001: ID 0000:0000
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB              10.01
  bDeviceClass            9 Hub
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         8
  idVendor           0x0000
  idProduct          0x0000
  bcdDevice            6.02
  iManufacturer           3 Linux 2.6.9 ohci_hcd
  iProduct                2 NEC Corporation USB (#2)
  iSerial                 1 0001:10:1b.1
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xc0
      Self Powered
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               none
        wMaxPacketSize          2
        bInterval             255
  Language IDs: (length=4)
     0409 English(US)

-- 
Colin
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