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List:       linux-hotplug
Subject:    Re: Creating a new map entry for an odd device
From:       David Brownell <david-b () pacbell ! net>
Date:       2003-05-19 0:31:50
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Bob Minowicz wrote:
> If this is the wrong forum for a request for help, I apologize.  please
> direct me to the appropriate mailing list.

The Linux-usb-users list would be better.


> I've recently obtained a Sampo Scream Cam DCE-310M.  ....
> 
> When I connect the camera (while turned on) under Linux, the USB
> subsystem finds a new device, but the hotplug usb agent fails to find a
> matching entry in the map.

So basically it needs some kind of driver.


> T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 16 Spd=12  MxCh= 0
> D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
> P:  Vendor=0c25 ProdID=0310 Rev= 3.00
> S:  Manufacturer=NetChip Technology
> S:  Product=NET2888 USB Interface Controller
> C:* #Ifs= 1 Cfg#= 1 Atr=60 MxPwr=500mA
> I:  If#= 0 Alt= 0 #EPs= 4 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E:  Ad=01(O) Atr=02(Bulk) MxPS=   8 Ivl=0ms
> E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
> E:  Ad=03(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> E:  Ad=84(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> 
> Is there a way that I can compose a map entry for the hotplug usb agent
> from this information?  I believe the device may well function with the
> usb-storage module, but I need the map entry to test that theory.

No, you'd need more than a map entry.  Since it doesn't
say "storage", and in fact has too many endpoints to work
as a storage device, I doubt that driver could work.

On the other hand, since it comes up claiming it's
just a raw controller (and vendor 0c25 != NetChip),
maybe that device needs firmware too.

- Dave






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