[sane-devel] Canon CanoScan LiDE 35

[Pierre Willenbrock]

Cameron Harris schrieb:
> 
> Well... I checked out experimental, copied the experimental/genesys/*
> over to the backend/ directory, then make clean/make/make install...
> 
> Gets slightly further in the scanning this time.
> 
> # SANE_DEBUG_GENESYS=255 scanimage -d genesys
> outputs lots of stuff and my scanner's head moves a little bit,
> flashes a few different colours.. but then it gets to...
> 
> [genesys] sanei_genesys_read_data_from_scanner (size = 1560000 bytes)
> [genesys] genesys_read_valid_words
> [genesys] sanei_genesys_read_register (0x44, 0x00) completed
> [genesys] sanei_genesys_read_register (0x43, 0x00) completed
> [genesys] sanei_genesys_read_register (0x42, 0x00) completed
> [genesys] genesys_read_valid_words: 0 words
> [genesys] genesys_read_valid_words
> [genesys] sanei_genesys_read_register (0x44, 0x84) completed
> [genesys] sanei_genesys_read_register (0x43, 0x2b) completed
> [genesys] sanei_genesys_read_register (0x42, 0x00) completed
> [genesys] genesys_read_valid_words: 11140 words
> 
> Where it stops for about 30 seconds, then...
> 
> [genesys] sanei_genesys_read_data_from_scanner: reading bulk data
> failed: Error during device I/O
> [genesys] genesys_black_white_shading_calibration: Failed to read
> data: Error during device I/O
> [genesys] genesys_flatbed_calibration: failed to do dark+white shading
> calibration: Error during device I/O
> [genesys] genesys_start_scan: failed to do flatbed calibration: Error
> during device I/O
> scanimage: sane_start: Error during device I/O
> [genesys] sane_cancel: start
> 
> Any ideas?
> 
> Thanks :)
> 
Does it always stop there? It looks like the usb connection somehow
broke while transfering data. Does the scanner re-register with your
system at the moment the transmission stops? There will be some kernel
messages about a new usb device in that case.