USB Webcam Sandberg NightCam 0ac8:301b

I'm not impressed by the image quality. The picture with the hand is in an almost dark room. The picture with the red hand is taken at the same time with a Samsung NV3 camera.

• Kernel: 2.6.17
• OS: Gentoo
• Driver: spca5xx-20060301
• Application: gqcam xawtv

ls -l /dev/v4l/video0

crw-rw---- 1 root video 81, 0 Jul 18 21:32 /dev/v4l/video0

dmesg

spca5xx.c: USB SPCA5XX camera found. Type Vimicro Zc301P 0x301b
spca5xx.c: [spca5xx_probe:8251] Camera type JPEG
zc3xx.h: [zc3xx_config:520] Find Sensor HV7131R(c)
spca5xx.c: [spca5xx_getcapability:2188] maxw 640 maxh 480 minw 176 minh 144
usbcore: registered new driver spca5xx

cat /proc/bus/usb/devices

T:  Bus=01 Lev=01 Prnt=01 Port=05 Cnt=03 Dev#=  7 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0ac8 ProdID=301b Rev= 1.00
S:  Manufacturer=Vimicro Corp.
S:  Product=PC Camera
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=160mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=spca5xx
E:  Ad=81(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
I:  If#= 0 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=spca5xx
E:  Ad=81(I) Atr=01(Isoc) MxPS= 128 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
I:  If#= 0 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=spca5xx
E:  Ad=81(I) Atr=01(Isoc) MxPS= 192 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
I:  If#= 0 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=spca5xx
E:  Ad=81(I) Atr=01(Isoc) MxPS= 256 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
I:  If#= 0 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=spca5xx
E:  Ad=81(I) Atr=01(Isoc) MxPS= 384 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
I:  If#= 0 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=spca5xx
E:  Ad=81(I) Atr=01(Isoc) MxPS= 512 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
I:  If#= 0 Alt= 6 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=spca5xx
E:  Ad=81(I) Atr=01(Isoc) MxPS= 768 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
I:  If#= 0 Alt= 7 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=spca5xx
E:  Ad=81(I) Atr=01(Isoc) MxPS= 896 Ivl=1ms
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=10ms

lsusb -v

Bus 001 Device 007: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 WebCam
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x0ac8 Z-Star Microelectronics Corp.
  idProduct          0x301b ZC0301 WebCam
  bcdDevice            1.00
  iManufacturer           1 
  iProduct                2 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          193
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
    MaxPower              160mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0000  1x 0 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0080  1x 128 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       2
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x00c0  1x 192 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       3
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0100  1x 256 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       4
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0180  1x 384 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       5
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       6
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0300  1x 768 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       7
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0380  1x 896 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10

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