Comment # 3 on bug 938659 from Markus Elfring

(In reply to Johannes Meixner from comment #2)
> For example on my Tumbleweed system I get:

elfring@Sonne:~> lsusb --verbose -s 3

Bus 001 Device 003: ID 0482:063e Kyocera Corp. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0482 Kyocera Corp.
  idProduct          0x063e 
  bcdDevice            0.00
  iManufacturer           1 Kyocera
  iProduct                2 Kyocera ECOSYS P6021cdn
  iSerial                 3 LW44818568
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         7 Printer
      bInterfaceSubClass      1 Printer
      bInterfaceProtocol      2 Bidirectional
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  bNumConfigurations      1
can't get debug descriptor: Resource temporarily unavailable
Device Status:     0x0001
  Self Powered



> what shows "ls -l /dev/bus/usb/<bus_number>/<device_number>"
> for your USB printer device on your system?

crw-rw---- 1 root users 189, 2 Jul 20 13:55 /dev/bus/usb/001/003


> In general when something with udev does not work as it should
> I cannot help because I am not at all a sufficient udev expert.

Who can and would like to help more around configuration challenges from this
software area?