/etc/sane.d/test.conf is in libsane-common 1.0.27-1~experimental3ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | # test backend configuration file
########################################
# number of test devices
number_of_devices 2
# Initial option values and ranges
########################################
# Scan mode (Color, Gray)
mode Gray
# Bit depth (1, 8, 16)
depth 8
# Hand-scanner mode (true, false)
hand-scanner false
# Three-pass mode (true, false)
three-pass false
# Three-pass order (RGB, RBG, GBR, GRB, BGR, BRG)
three-pass-order RGB
# Resolution (dpi)
resolution_min 1.0
resolution_max 1200.0
resolution_quant 1.0
resolution 50.0
# Draw test picture ("Solid black", "Solid white", "Color pattern", "Grid")
test-picture "Solid black"
# Invert upper and lower byte in 16 bit modes
invert-endianess false
# Read-limit (true, false)
read-limit false
# Read-limit size (1 - 65536 bytes)
read-limit-size 1
# Read-delay (true, false)
read-delay false
# Read-delay duration (1000 - 200,000 microseconds)
read-delay-duration 1000
# Status code (return-value) of sane_read() ("Default",
# "SANE_STATUS_UNSUPPORTED",
# "SANE_STATUS_CANCELLED", "SANE_STATUS_DEVICE_BUSY", "SANE_STATUS_INVAL",
# "SANE_STATUS_EOF", "SANE_STATUS_JAMMED", "SANE_STATUS_NO_DOCS",
# "SANE_STATUS_COVER_OPEN", "SANE_STATUS_IO_ERROR", "SANE_STATUS_NO_MEM",
# "SANE_STATUS_ACCESS_DENIED"
read-status-code "Default"
# Fuzzy parameters (true, false)
fuzzy-parameters false
# Loss of pixels per line (pixels)
ppl-loss 0
# Non-blocking io (true, false)
non-blocking false
# Support select fd (true, false)
select-fd false
# Enable test options (true, false)
enable-test-options false
# Geometry (mm)
geometry_min 0.0
geometry_max 200.0
geometry_quant 1.0
# Top-left x position (mm)
tl_x 0.0
# Top-left y position (mm)
tl_y 0.0
# Bottom-right x position (mm)
br_x 80.0
# Bottom-right y position (mm)
br_y 100.0
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