[simple-scan/gnome-3-4: 14/25] Add support for the Samsung Unified Driver (SUD) which enables ADF Duplex and correct colour mode se

[Robert Ancell <rancell src gnome org>]

commit e1d949bab201b68b92d3fd64de0607663b80da5b
Author: Robert Ancell <robert ancell canonical com>
Date:   Fri Aug 29 13:43:55 2014 +1200

    Add support for the Samsung Unified Driver (SUD) which enables ADF Duplex and correct colour
    mode selection. Note that SUD's document source is not the standard SANE NAME_SCAN_SOURCE so
    the SUD-specific "doc-source" is queried if the SANE "source" fails to find an option.
    
    Tested on Samsung CLX-6220FX with ADL Duplex.

 src/scanner.vala |   22 +++++++++++++++++-----
 1 files changed, 17 insertions(+), 5 deletions(-)
---
diff --git a/src/scanner.vala b/src/scanner.vala
index 722f308..efbce28 100644
--- a/src/scanner.vala
+++ b/src/scanner.vala
@@ -841,6 +841,11 @@ public class Scanner
         {
             /* Pick source */
             option = get_option_by_name (handle, Sane.NAME_SCAN_SOURCE, out index);
+            if (option == null)
+            {
+                 debug ("SCAN_SOURCE not available, trying alternative \"doc-source\"");
+                 option = get_option_by_name (handle, "doc-source", out index); /* Samsung unified driver. 
LP: #892915 */
+            }
             if (option != null)
             {
                 string[] flatbed_sources =
@@ -860,7 +865,8 @@ public class Scanner
                     Sane.I18N ("Automatic Document Feeder"),
                     "ADF",
                     "Automatic Document Feeder(left aligned)", /* Seen in the proprietary brother3 driver */
-                    "Automatic Document Feeder(centrally aligned)" /* Seen in the proprietary brother3 
driver */
+                    "Automatic Document Feeder(centrally aligned)", /* Seen in the proprietary brother3 
driver */
+                    "ADF Simplex" /* Samsung unified driver. LP: # 892915 */
                 };
 
                 string[] adf_front_sources =
@@ -878,7 +884,9 @@ public class Scanner
                 string[] adf_duplex_sources =
                 {
                     "ADF Duplex",
-                    Sane.I18N ("ADF Duplex")
+                    Sane.I18N ("ADF Duplex"),
+                    "ADF Duplex - Long-Edge Binding", /* Samsung unified driver. LP: # 892915 */
+                    "ADF Duplex - Short-Edge Binding"
                 };
 
                 switch (job.type)
@@ -915,7 +923,8 @@ public class Scanner
                 {
                     Sane.VALUE_SCAN_MODE_COLOR,
                     "Color",
-                    "24bit Color" /* Seen in the proprietary brother3 driver */
+                    "24bit Color", /* Seen in the proprietary brother3 driver */
+                    "Color - 16 Million Colors" /* Samsung unified driver. LP: 892915 */
                 };
                 string[] gray_scan_modes =
                 {
@@ -923,7 +932,8 @@ public class Scanner
                     "Gray",
                     "Grayscale",
                     Sane.I18N ("Grayscale"),
-                    "True Gray" /* Seen in the proprietary brother3 driver */
+                    "True Gray", /* Seen in the proprietary brother3 driver */
+                    "Grayscale - 256 Levels"  /* Samsung unified driver. LP: 892915 */
                 };
                 string[] lineart_scan_modes =
                 {
@@ -940,7 +950,9 @@ public class Scanner
                     "Gray",
                     "Grayscale",
                     Sane.I18N ("Grayscale"),
-                    "True Gray" /* Seen in the proprietary brother3 driver */
+                    "True Gray", /* Seen in the proprietary brother3 driver */
+                    "Black and White - Line Art",  /* Samsung unified driver. LP: 892915 */
+                    "Black and White - Halftone"
                 };
 
                 switch (job.scan_mode)