# scanimage -d v4l:/dev/video0 [sanei_debug] Setting debug level of dll to 128. [dll] sane_init: SANE dll backend version 1.0.6 from sane-backends-1.0.8-cvs [dll] add_backend: adding backend `gphoto2' [dll] add_backend: adding backend `microtek' [dll] add_backend: adding backend `microtek2' [dll] add_backend: adding backend `snapscan' [dll] add_backend: adding backend `v4l' [dll] load: searching backend `v4l' in `/usr/local/lib/sane' [dll] load: trying to load `/usr/local/lib/sane/libsane-v4l.so.1' [dll] load: dlopen()ing `/usr/local/lib/sane/libsane-v4l.so.1' [dll] init: initializing backend `v4l' [dll] init: backend `v4l' is version 1.0.2 scanimage: open of device v4l:/dev/video0 failed: Invalid argument [dll] sane_exit: exiting [dll] sane_exit: calling backend `v4l's exit function [dll] sane_exit: finished
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