On Fri, 31 Dec 2004, Dave Mielke wrote:

> Could someone please give me some pointers regarding what I may need to try. I
> have a USB digital camera (Centrios DSC-228) which is, according to its
> documentation, supposed to appear as a flash disk. This doesn't appear to be 
> working. What might I need to do?
> 
> I'm using:
> 
>    kernel-2.6.9-1.681_FC3
>    usbutils-0.11-6.1
>    hotplug-2004_04_01-8
> 
> When I connect the camera, the system log contains:
> 
>    kernel: ohci_hcd 0000:00:03.0: wakeup
>    kernel: usb 2-2: new full speed USB device using address 2
>    kernel: usbcore: registered new driver snd-usb-audio
> 
> /proc/bus/usb/devices, for the camera, contains:
> 
> ===============================================================================
> D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
> P:  Vendor=04fc ProdID=5330 Rev= 1.00
> S:  Manufacturer=Sunplus Co Ltd 
> S:  Product=Sunplus SPCA533        
> C:* #Ifs= 4 Cfg#= 1 Atr=80 MxPwr=500mA
> I:  If#= 0 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=81(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
> I:  If#= 0 Alt= 1 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=81(I) Atr=01(Isoc) MxPS= 128 Ivl=1ms
> I:  If#= 0 Alt= 2 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=81(I) Atr=01(Isoc) MxPS= 384 Ivl=1ms
> I:  If#= 0 Alt= 3 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=81(I) Atr=01(Isoc) MxPS= 512 Ivl=1ms
> I:  If#= 0 Alt= 4 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=81(I) Atr=01(Isoc) MxPS= 640 Ivl=1ms
> I:  If#= 0 Alt= 5 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=81(I) Atr=01(Isoc) MxPS= 768 Ivl=1ms
> I:  If#= 0 Alt= 6 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=81(I) Atr=01(Isoc) MxPS= 896 Ivl=1ms
> I:  If#= 0 Alt= 7 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=81(I) Atr=01(Isoc) MxPS=1023 Ivl=1ms
> I:  If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> E:  Ad=03(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> E:  Ad=84(I) Atr=03(Int.) MxPS=   1 Ivl=1ms
> I:  If#= 2 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio
> I:  If#= 3 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> I:  If#= 3 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> E:  Ad=86(I) Atr=01(Isoc) MxPS=  16 Ivl=1ms
> I:  If#= 3 Alt= 2 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> E:  Ad=86(I) Atr=01(Isoc) MxPS=  32 Ivl=1ms
> I:  If#= 3 Alt= 3 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> E:  Ad=86(I) Atr=01(Isoc) MxPS=  48 Ivl=1ms
> I:  If#= 3 Alt= 4 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> E:  Ad=86(I) Atr=01(Isoc) MxPS=  64 Ivl=1ms
> I:  If#= 3 Alt= 5 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> E:  Ad=86(I) Atr=01(Isoc) MxPS=  80 Ivl=1ms
> I:  If#= 3 Alt= 6 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> E:  Ad=86(I) Atr=01(Isoc) MxPS=  96 Ivl=1ms
> I:  If#= 3 Alt= 7 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio
> E:  Ad=86(I) Atr=01(Isoc) MxPS= 112 Ivl=1ms
> ===============================================================================

That sure doesn't look like an entry for a digital camera.  A video 
camera, maybe.

None of the information in that entry is consistent with the device 
appearing as a flash disk, except possibly Interface 1.  But it as listed 
as using a vendor-specific protocol, not the standard USB mass-storage 
protocols.  So no wonder it doesn't show up as a disk!

Alan Stern



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