[sane-devel] High res problem with Epson 1240U USB Scanner

[Bill Slade]

Hi all,
Perhaps someone can help me fix this problem.   I have an Epson 1240 U Scanner.  After doing all the configuration mentioned in the USB scanner FAQ and conecting the scanner to the USB port...I was all excited when it worked straight away....until  I tried to scan at a resolution higher than 600dpi.  Xsane choked and a  dialog window "Error during read: Invalid argument" popped up.  

Doing a <<cat /proc/bus/usb/devices >> yields

:  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=3400
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=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  6 Spd=12  MxCh= 0
D:  Ver= 1.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS=64 #Cfgs=  1
P:  Vendor=04b8 ProdID=010b Rev= 1.14
S:  Manufacturer=?????
S:  Product=??????????????
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

The kernel complains withthe maintainer.
Jul 23 12:43:38 localhost kernel: scanner.c: read_scanner(0): funky result:-32.
Please notify the maintainer.
Jul 23 12:43:38 localhost last message repeated 50 times
Jul 23 12:43:38 localhost kernel: sd_scanner(0): funky result:-32. Please notify the maintainer.
Jul 23 12:43:38 localhost kernel: scanner.c: read_scanner(0): funky result:-32.
Please notify the maintainer.
Jul 23 12:43:38 localhost last message repeated 1168 times

What is happening and what fixes it?  Isit the backend or the USB driver that is the problem?  Any help would be greatly appreciated.

BTW -  I am using RedHat 7.1 on a Compaq laptop with kernel 2.4.2-2. The scanner.o module  is dated April 9, 2001.

Cheers,
Bill