On Thu, Oct 25, 2001 at 03:38:51AM +0100, Tom Barnes-Lawrence wrote:
> T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
> D:  Ver= 1.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS=64 #Cfgs=  1
> P:  Vendor=0572 ProdID=1232 Rev= 0.01
> S:  Manufacturer=Conexant Systems, Incorporated
> S:  Product=V.90 modem with USB interface
> S:  SerialNumber=000000000000000001
> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
> I:  If#= 0 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
> E:  Ad=01(O) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
> E:  Ad=81(I) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
> E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
> E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
> E:  Ad=03(O) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
> E:  Ad=83(I) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
> E:  Ad=04(O) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
> E:  Ad=84(I) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
> 
>  Hope it is of use...

That's a vendor specific device.  The acm driver will not work with
it.

> Well, yes, I kind of knew that, but I meant does anyone know if they'd
> made that vendor specific protocol backwards compatible with the standard
> one -like their serial modem protocol was. Obviously a driver such as ACM
> will only respond to devices that *report* that they are ACM devices. But
> you can see what I'm asking, right?
> Seeing as it is *called* a hardware modem...

Who knows.  Try asking the vendor for the protocol specs.  Or you can
try reverse engineering the protocol by sniffing a Windows USB trace of
the device in action.

Good luck,

greg k-h

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