Hi, I have the same problem a few weeks ago, and Karl Heinz help me much.
Have you modified the scanner.c file?
Christian
Am Fre, 14 Apr 2000 schrieben Sie:
> Hi there. I've been working with Karl Kremer for a few days and we're
> stuck. I've got everything seemingly set up right with the kernel and
> USB and sane. I've got the kernel version 2.2.14 with the 2.3.39 USB
> backport, I've got sane-1.0.2 and the 2000/03/27 epson backend (for
> sure). Anyways after turning debug info on and doing a scanimage
> --list-devices, i get nothing. For a scanimage --help -d epson i get :
>
> ------------------(cut)-------------------
>
> >/usr/local/bin/scanimage --help -d epson
> Usage: scanimage [OPTION]...
>
> Start image acquisition on a scanner device and write PNM image data to
> standard output.
>
> -b, --batch=FORMAT working in batch mode
> -d, --device-name=DEVICE use a given scanner device
> -h, --help display this help message and exit
> -L, --list-devices show available scanner devices
> -T, --test test backend thoroughly
> -v, --verbose give even more status messages
> -V, --version print version information
> [sanei_init_debug]: Setting debug level of epson to 255.
> [epson] sane_init: sane 1.0.2
> [epson] sane_init, >/dev/usbscanner<
> [epson] sane_init, >/dev/usbscanner<
> [epson] Version 0.1.21 Date 27-Mar-2000
> [epson] attach: opening /dev/usbscanner
> [epson] attach: sending INQUIRY
> [epson] attach: inquiry failed: Error during device I/O
> scanimage: open of device epson failed: Invalid argument
> Type ``scanimage --help -d DEVICE'' to get list of all options for
> DEVICE.
>
> List of available devices:
>
> ------------------(cut)-------------------
>
> And that's it.
>
> Here's my /proc/dev/bus/usb/device :
>
> ------------------(cut)-------------------
> T: Bus=00 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
> B: Alloc= 17/900 us ( 2%), #Int= 1, #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
> 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
> T: Bus=00 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=04b8 ProdID=0104 Rev= 1.03
> S: Manufacturer=EPSON
> S: Product=Perfection1200
> C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 2mA
> I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=usbscanner
> E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> ------------------(cut)-------------------
>
> I have the scanner module loaded with the right params.
>
> Any ideas? Any more details I can post to help debug this?
>
> Thanks.
>
> Aaron Krowne
>
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