[sane-devel] Re: Getting Mustek 1200 UB Plus scanner working

Henning Meier-Geinitz henning at meier-geinitz.de
Tue Aug 16 16:53:47 UTC 2005


On Tue, Aug 16, 2005 at 12:22:46PM -0400, Martin wrote:
> The output of cat /proc/bus/usb/devices, is,
> T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
> B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
> D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=0000 ProdID=0000 Rev= 0.00
> S: Product=USB UHCI Root Hub
> S: SerialNumber=e400
> C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
> I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms

So your scanner is not detected by the kernel at all, only the root
hub. Either the scanner is not plugged in or defective. Theoretically
there could be a bug in the Linux kernel but as the root hub is
detected this is rather unlikely.

> How can I verify that the kernel is configured for USB suport, and that 
> the devices are mounted?

It is mounted, otherwise you couldn't "cat /proc/bus/usb/devices". And
you have USB support, otherwise the hub wouldn't be detected.


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