Re: USB drivers

From: Chris (chris_at_tellme3times.com)
Date: 08/08/04

  • Next message: Chris: "Re: USB drivers" 
    Date: Sun, 08 Aug 2004 00:05:34 -0400
To: "M. Warner Losh" <imp@bsdimp.com>

    M. Warner Losh wrote:

    >
    >I think that the first thing that should be done is to look at the usb
    >configuration. /usr/ports/sysutils/udesc_dump is a good place to
    >start to investigate things. Also, the usb mindshare book is good to
    >understand usb and the layers of the configuation onion. There's a
    >book in the works that should help, but I'm afraid that I can't say
    >more than that at this time.
    >
    >Warner
    >
    >

    Here is the output from udesc_dump which is fine. I could not figure out
    how to kldunload just ulpt.ko so I recompiled a new kernel.

    halla# udesc_dump
    Standard Device Descriptor:
      bLength 18
      bDescriptorType 01
      bcdUSB 0110
      bDeviceClass 00
      bDeviceSubClass 00
      bDeviceProtocol 00
      bMaxPacketSize 8
      idVendor 04b8
      idProduct 0808
      bcdDevice 0100
      iManufacturer 1
      iProduct 2
      iSerialNumber 3
      bNumConfigurations 1

    Configuration 0:
            Standard Configuration Descriptor:
              bLength 9
              bDescriptorType 02
              wTotalLength 55
              bNumInterface 2
              bConfigurationValue 1
              iConfiguration 4
              bmAttributes c0 (self-powered)
              bMaxPower 1 (2 mA)

            Standard Interface Descriptor:
              bLength 9
              bDescriptorType 04
              bInterfaceNumber 0
              bAlternateSetting 0
              bNumEndpoints 2
              bInterfaceClass ff
              bInterfaceSubClass ff
              bInterfaceProtocol ff
              iInterface 5

            Standard Endpoint Descriptor:
              bLength 7
              bDescriptorType 05
              bEndpointAddress 81 (in)
              bmAttributes 02 (Bulk)
              wMaxPacketSize 64
              bInterval 0

            Standard Endpoint Descriptor:
              bLength 7
              bDescriptorType 05
              bEndpointAddress 02 (out)
              bmAttributes 02 (Bulk)
              wMaxPacketSize 64
              bInterval 0

            Standard Interface Descriptor:
              bLength 9
              bDescriptorType 04
              bInterfaceNumber 1
              bAlternateSetting 0
              bNumEndpoints 2
              bInterfaceClass 07
              bInterfaceSubClass 01
              bInterfaceProtocol 02
              iInterface 6

            Standard Endpoint Descriptor:
              bLength 7
              bDescriptorType 05
              bEndpointAddress 04 (out)
              bmAttributes 02 (Bulk)
              wMaxPacketSize 64
              bInterval 0

            Standard Endpoint Descriptor:
              bLength 7
              bDescriptorType 05
              bEndpointAddress 83 (in)
              bmAttributes 02 (Bulk)
              wMaxPacketSize 64
              bInterval 0

    Codes Representing Languages by the Device:
      bLength 4
      bDescriptorType 03
      wLANGID[0] 0409

    String (index 1): EPSON

    String (index 2): USB MFP

    String (index 3): RC0438001041259320

    String (index 4): USB MFP

    String (index 5): EPSON Scanner

    String (index 6): USB Printer

    halla#
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  • Next message: Chris: "Re: USB drivers"

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