Comment 111 for bug 348316

Bottom line: My system has no /dev/usb/lp0 and, therefore, I can't find a URI: entry to manually configure my HP LaserJet 4L.

lpinfo -v does not show my printer.

lsusb displays Bus 003 Device 005: ID 04b4:4100 Cypress Semiconductor Corp.

lsusb -v displays:

Bus 003 Device 005: ID 04b4:4100 Cypress Semiconductor Corp.
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 1.10
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 8
  idVendor 0x04b4 Cypress Semiconductor Corp.
  idProduct 0x4100
  bcdDevice 0.02
  iManufacturer 1
  iProduct 2 USB PRINT
  iSerial 0
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 50
    bNumInterfaces 1
    bConfigurationValue 1
    iConfiguration 4
    bmAttributes 0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower 100mA
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 2
      bNumEndpoints 2
      bInterfaceClass 7 Printer
      bInterfaceSubClass 1 Printer
      bInterfaceProtocol 2 Bidirectional
      iInterface 0
      ** UNRECOGNIZED: 09 21 10 01 00 01 22 25 00
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x01 EP 1 OUT
        bmAttributes 2
          Transfer Type Bulk
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0008 1x 8 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 0x0040 1x 64 bytes
        bInterval 0
cannot read device status, Broken pipe (32)

HPLIP shows print jobs hitting queue and finishing, but nothing prints.

ls -la /dev/bus/usb/003/005 displays:
crw-rw---- 1 root lp 189, 260 2010-01-07 21:51 /dev/bus/usb/003/005

All I have under /dev/usb* are entries fo usbmon0 through usbmon5

Will work with y'all in continuing to fix, but you'll have to walk me through some of the more advanced procedures.