Hum,
OPT_CUSTOM_GAMMA is wrongly set to SANE_CAP_INACTIVE by default, so you
can't
use gamma tables ... I'll commit a fix by tomorrow. Meanwhile you can edit
umax_pp.c
and remove '| SANE_CAP_INACTIVE' on the line :
dev->opt[OPT_CUSTOM_GAMMA].cap |= SANE_CAP_ADVANCED | SANE_CAP_INACTIVE;
OPT_UTA_CONTROL has the same problem.
With this, both options will show up advanced options of xscanimage.
Regards,
Stef
