이리저리 삽질하다가 현재 dmesg보니까 뭔가 잡힌 것 같기는 한데
/proc/bus/usb나 /proc/scsi/scsi가 텅 비어있습니다.
무슨 문제인지 모르겠습니다.
 kernel-2.4.19, 카메라 F-Cam(ㅡㅡ;;)메이드인 차이나에요.
 다음은 dmesg중 발췌한 것입니다. 
 ===========================================================
 /***이게 무슨 에러인지 모르겠습니다***/
 SCSI subsystem driver Revision:1.00
kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
  /**usb관련 메세지는 많이 뜨기는 합니다***/
 Linux Kernel Card Services 3.1.22
  options:  [pci] [cardbus] [pm]
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
uhci.c: USB Universal Host Controller Interface driver v1.1
 ....
 uhci.c: USB UHCI at I/O 0xd800, IRQ 11
usb.c: new USB bus registered, assigned bus number 1
uhci.c: detected 2 ports
usb.c: kmalloc IF cfea35c0, numif 1
usb.c: new device strings: Mfr=0, Product=2, SerialNumber=1
usb.c: USB device number 1 default language ID 0x0
Product: USB UHCI-alt Root Hub
SerialNumber: d800
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: standalone hub
hub.c: ganged power switching
hub.c: global over-current protection
hub.c: Port indicators are not supported
hub.c: power on to power good time: 2ms
hub.c: hub controller current requirement: 0mA
hub.c: port removable status: RR
hub.c: local power source is good
hub.c: no over-current condition exists
hub.c: enabling power on all ports
usb.c: hub driver claimed interface cfea35c0
usb.c: kusbd: /sbin/hotplug add 1
usb.c: kusbd policy returned 0xfffffffe
PCI: Found IRQ 11 for device 00:07.3
PCI: Sharing IRQ 11 with 00:07.2
PCI: Sharing IRQ 11 with 00:0b.0
uhci.c: USB UHCI at I/O 0xdc00, IRQ 11
usb.c: new USB bus registered, assigned bus number 2
uhci.c: detected 2 ports
usb.c: kmalloc IF cfea37c0, numif 1
usb.c: new device strings: Mfr=0, Product=2, SerialNumber=1
usb.c: USB device number 1 default language ID 0x0
Product: USB UHCI-alt Root Hub
SerialNumber: dc00
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: standalone hub
hub.c: ganged power switching
hub.c: global over-current protection
hub.c: Port indicators are not supported
hub.c: power on to power good time: 2ms
hub.c: hub controller current requirement: 0mA
hub.c: port removable status: RR
hub.c: local power source is good
hub.c: no over-current condition exists
hub.c: enabling power on all ports
usb.c: hub driver claimed interface cfea37c0
usb.c: kusbd: /sbin/hotplug add 1
usb.c: kusbd policy returned 0xfffffffe
usb.c: registered new driver hiddev
usb.c: registered new driver hid
hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik <vojtech at suse.cz>
hid-core.c: USB HID support drivers
usb.c: registered new driver usblp
...
 hub.c: port 1, portstatus 101, change 3, 12 Mb/s
hub.c: port 1 connection change
hub.c: port 1, portstatus 101, change 3, 12 Mb/s
ds: no socket drivers loaded!
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 120k freed
uhci.c: root-hub INT complete: port1: 58a port2: 58a data: 6
uhci.c: dc00: suspend_hc
hub.c: port 1, portstatus 101, change 2, 12 Mb/s
hub.c: port 1, portstatus 101, change 2, 12 Mb/s
uhci.c: root-hub INT complete: port1: 499 port2: 48a data: 6
hub.c: port 1, portstatus 101, change 2, 12 Mb/s
uhci.c: root-hub INT complete: port1: 58a port2: 58a data: 6
hub.c: port 1, portstatus 101, change 2, 12 Mb/s
hub.c: port 1, portstatus 103, change 0, 12 Mb/s
hub.c: USB new device connect on bus1/1, assigned device number 2
uhci.c: root-hub INT complete: port1: 495 port2: 48a data: 4
usb.c: kmalloc IF cfefbbc0, numif 2
usb.c: new device strings: Mfr=1, Product=2, SerialNumber=0
usb.c: USB device number 2 default language ID 0x409
 /****요기서 카메라 얘기가 나오는 것 같은데요
     드라이버가 없다는 이야기 인가요?       ****/
 Manufacturer: DIGITAL CAMERA
Product: DIGITAL CAMERA
usb.c: unhandled interfaces on device
usb.c: USB device 2 (vend/prod 0xd64/0x1021) is not claimed by any active driver.
  Length              = 18
  DescriptorType      = 01
  USB version         = 1.10
  Vendor:Product     = 0d64:1021
  MaxPacketSize0      = 64
  NumConfigurations   = 1
  Device version      = 1.00
  Device Class:SubClass:Protocol = 00:00:00
    Per-interface classes
Configuration:
  bLength             =    9
  bDescriptorType     =   02
  wTotalLength        = 0065
  bNumInterfaces      =   02
  bConfigurationValue =   01
  iConfiguration      =   00
  bmAttributes        =   c0
  MaxPower            =  240mA
   Interface:0
  Alternate Setting: 0
    bLength             =    9
    bDescriptorType     =   04
    bInterfaceNumber    =   00
    bAlternateSetting   =   00
    bNumEndpoints       =   02
    bInterface Class:SubClass:Protocol =   ff:ff:ff
    iInterface          =   00
    Endpoint:
      bLength             =    7
      bDescriptorType     =   05
      bEndpointAddress    =   81 (in)
      bmAttributes        =   02 (Bulk)
uhci.c: root-hub INT complete: port1: 58a port2: 58a data: 6
      wMaxPacketSize      = 0040
      bInterval           =   00
    Endpoint:
      bLength             =    7
      bDescriptorType     =   05
      bEndpointAddress    =   02 (out)
      bmAttributes        =   02 (Bulk)
      wMaxPacketSize      = 0040
      bInterval           =   00
   Interface:1
  Alternate Setting: 0
    bLength             =    9
    bDescriptorType     =   04
    bInterfaceNumber    =   01
    bAlternateSetting   =   00
    bNumEndpoints       =   02
    bInterface Class:SubClass:Protocol =   ff:ff:ff
    iInterface          =   04
    Endpoint:
      bLength             =    7
      bDescriptorType     =   05
      bEndpointAddress    =   83 (in)
      bmAttributes        =   01 (Isochronous)
      wMaxPacketSize      = 0000
      bInterval           =   01
    Endpoint:
      bLength             =    7
      bDescriptorType     =   05
      bEndpointAddress    =   04 (out)
      bmAttributes        =   02 (Bulk)
      wMaxPacketSize      = 0040
      bInterval           =   00
  Alternate Setting: 1
    bLength             =    9
    bDescriptorType     =   04
    bInterfaceNumber    =   01
    bAlternateSetting   =   01
    bNumEndpoints       =   02
    bInterface Class:SubClass:Protocol =   ff:ff:ff
    iInterface          =   05
    Endpoint:
      bLength             =    7
      bDescriptorType     =   05
      bEndpointAddress    =   83 (in)
      bmAttributes        =   01 (Isochronous)
      wMaxPacketSize      = 0380
      bInterval           =   01
    Endpoint:
      bLength             =    7
      bDescriptorType     =   05
      bEndpointAddress    =   04 (out)
      bmAttributes        =   02 (Bulk)
      wMaxPacketSize      = 0040
      bInterval           =   00
  Alternate Setting: 2
    bLength             =    9
    bDescriptorType     =   04
    bInterfaceNumber    =   01
    bAlternateSetting   =   02
    bNumEndpoints       =   02
    bInterface Class:SubClass:Protocol =   ff:ff:ff
    iInterface          =   06
    Endpoint:
      bLength             =    7
      bDescriptorType     =   05
      bEndpointAddress    =   83 (in)
      bmAttributes        =   01 (Isochronous)
      wMaxPacketSize      = 01d0
      bInterval           =   01
    Endpoint:
      bLength             =    7
      bDescriptorType     =   05
      bEndpointAddress    =   04 (out)
      bmAttributes        =   02 (Bulk)
      wMaxPacketSize      = 0040
      bInterval           =   00
usb.c: kusbd: /sbin/hotplug add 2
uhci.c: root-hub INT complete: port1: 495 port2: 48a data: 4
hub.c: port 2, portstatus 100, change 3, 12 Mb/s
hub.c: port 2 connection change
hub.c: port 2, portstatus 100, change 3, 12 Mb/s
hub.c: port 1, portstatus 103, change 0, 12 Mb/s
hub.c: port 2, portstatus 100, change 2, 12 Mb/s
hub.c: port 2 enable change, status 100
hub.c: port 1, portstatus 300, change 3, 1.5 Mb/s
hub.c: port 1 connection change
hub.c: port 1, portstatus 300, change 3, 1.5 Mb/s
hub.c: port 2, portstatus 300, change 3, 1.5 Mb/s
hub.c: port 2 connection change
hub.c: port 2, portstatus 300, change 3, 1.5 Mb/s
uhci.c: root-hub INT complete: port1: 588 port2: 588 data: 6
hub.c: port 1, portstatus 300, change 2, 1.5 Mb/s
hub.c: port 1 enable change, status 300
hub.c: port 2, portstatus 300, change 2, 1.5 Mb/s
hub.c: port 2 enable change, status 300
 ....
======================================================
 흠.. 제가 좀 뜯어보기는 했습니다만..
보이는게 글자일 뿐.. 무슨 메시지인지 잘 모르겠습니다.
 조언 좀 부탁합니다.--넉넉히풀어헤쳐그대를감싸리라