plustek@linuxhacker.org

Hi,
I had my canon n670u working with the sane backend 1.0.11 on SuSE 8.1. Now I 
switched to 1.0.12 (hoping image quality was improved). I also switched from 
kernel module to libusb and changed /proc/bus/usb/... permissions via 
hotplug. Well, shouldn't matter...
My scanner is detected, however when starting a scan, after doing some noises, 
the scanner dies. Switching on debug output with scanimage, I found following 
output (see below). Is there a bug in the current backend? Could libusb have 
something to do with it? Have I to adjust some values in plustek.conf?

Thanks for any help. 
Greetings, Flo

(...)
[plustek] Settings done, so start...
[plustek] usb SetScanParameters()
[plustek] * HDPI: 1.000
[plustek] * XDPI=600, HDPI=1.000
[plustek] * DataPixelStart=74, LineEnd=5174
[plustek] >> End-Start=5100, HDPI=1.00
[plustek] * Full Steps to Skip at Start = 0x0000
[plustek] usb GetMCLKDivider()
[plustek] * Integration Time Adjust = 0 (HDPI=1.000,MCLKD=6.000)
[plustek] * Current MCLK Divider = 6.000000
[plustek] * MOTOR-Settings: PWM=0x08, PWM DUTY=0x1f
[plustek] * PhyBytes   = 30606
[plustek] * PhyLines   = 1
[plustek] * TotalBytes = 91818
[plustek] * PL=230, coeffsize=192, scaler=3
[plustek] * PauseLimit = 90, [0x4e] = 0x2b, [0x4f] = 0x01
[plustek] usb SetScanParameters() done.
[plustek] Warmup: skipped for CIS devices
[plustek] usb ScanBegin()
[plustek] usb IsDataAvailableInDRAM()
[plustek] NO Data available
[plustek] Nothing to read...
[plustek] usb AdjustGain() failed
[plustek] Coarse Calibration failed!!!
[plustek] calibration failed!!!
[plustek] read failed, status = -9007, errno 2
[plustek] reader process done, status = 9
[plustek] Child is down (signal=17)
[plustek] drvclose()
[plustek] TIME END 1: 32s
(...)