[sane-devel] sane_set_io_mode and sane_get_select_fd

[Jeffrey Ratcliffe]

I attach some sample code calling sane_set_io_mode and
sane_get_select_fd, but I can't seem to get it to work. Without
calling sane_start, I get:

initialising sane... Success
opening test... Success
Setting non-blocking option... Success
Setting non-blocking... Invalid argument
Setting fd option... Success
Setting fd... Invalid argument

If I comment-in the sane_start call (as I understand should be from
the docs), I get:

initialising sane... Success
opening test... Success
start... Success
Setting non-blocking option... Invalid argument
Setting non-blocking... Operation not supported
Setting fd option... Invalid argument
Setting fd... Operation not supported

What am I missing?

Regards

Jeff Ratcliffe
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