Am Montag, 20. Juni 2005 09:28 schrieb Ram:
> # cat /proc/bus/usb/devices
>
> T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 12 Spd=12 MxCh= 0
> D: Ver= 2.00 Cls=ff(vend.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=0525 ProdID=a4a6 Rev= 2.07
> S: Manufacturer=Linux 2.6.12-rc2-omap2 with omap_udc
> S: Product=Gadget Serial
> S: SerialNumber=0
> C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
> I: If#= 0 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=(none)
> <--------- (Why ?)
> E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
If this is the complete device descriptor it cannot work with cdc_acm.
CDC-ACM mandates a control interface and at least a union descriptor.
HTH
Oliver
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