USB drivers
Chris
chris at tellme3times.com
Sat Aug 7 20:59:06 PDT 2004
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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