[sane-devel] Snapscan: Epson 2480 hangs on amd64

[Oliver Schwartz]

Hi,

> [snapscan] read_calibration_data: snapscan_cmd command failed:
> Error during device I/O [snapscan] calibrate: read_calibration_data
> command failed: Error during device I/O [snapscan]
> sane_snapscan_start: calibration failed.

the error occurs during quality calibration. It's a known issue that 
quality calibration as implemented in the snapscan backend doesn't 
work for epson scanners. For that reason the option is disabled for 
epson models (see snapscan-options.c, line 522ff). In this case the 
calibrate function should never be called (see snapscan.c, line 
1600).

Either you're using a wrong version of the backend or there's some 
issue with option handling on amd64.

/Oliver