add support of Plustek OpticSlim 500+

backend/gt68xx.conf.in

@@ -196,6 +196,11 @@ usb 0x07b3 0x045f
 # Autodetect NeatReceipts Mobile Scanner
 usb 0x07b3 0x0462
 
+##############################################################################
+# Autodetect Plustek OpticSlim 500 Plus
+usb 0x07b3 0x046e
+override "plustek-opticslim-500plus"
+
 ##############################################################################
 # Autodetect Plustek OpticSlim 1200
 usb 0x07b3 0x0413

backend/gt68xx_devices.c

@@ -805,6 +805,54 @@ static GT68xx_Model artec_ultima2000_model = {
     /* Setup for Cytron TCM MD 9385 */
 };
 
+static GT68xx_Model plustek_opticslim500plus_model = {
+  "plustek-opticslim-500plus",	/* Name */
+  "Plustek",			/* Device vendor string */
+  "OpticSlim 500 Plus",		/* Device model name */
+  "cis3R5B1.fw",		/* Name of the firmware file */
+  SANE_FALSE,			/* Dynamic allocation flag */
+
+  &mustek_gt6816_command_set,	/* Command set used by this scanner */
+
+  600,				/* maximum optical sensor resolution */
+  1200,				/* maximum motor resolution */
+  600,				/* base x-res used to calculate geometry */
+  600,				/* base y-res used to calculate geometry */
+  1200,				/* if ydpi is equal or higher, disable backtracking */
+  SANE_FALSE,			/* Use base_ydpi for all resolutions */
+
+  {600, 300, 150, 75, 50, 0},	/* possible x-resolutions */
+  {1200, 600, 300, 150, 75, 50, 0},/* possible y-resolutions */
+  {16, 8, 0},			/* possible depths in gray mode */
+  {16, 8, 0},			/* possible depths in color mode */
+
+  SANE_FIX (1.0),		/* Start of scan area in mm  (x) */
+  SANE_FIX (9.5),		/* Start of scan area in mm (y) */
+  SANE_FIX (218.0),		/* Size of scan area in mm (x) */
+  SANE_FIX (142.0),		/* Size of scan area in mm (y) */
+
+  SANE_FIX (0.0),		/* Start of white strip in mm (y) */
+  SANE_FIX (0.0),		/* Start of black mark in mm (x) */
+
+  SANE_FIX (0.0),		/* Start of scan area in TA mode in mm (x) */
+  SANE_FIX (0.0),		/* Start of scan area in TA mode in mm (y) */
+  SANE_FIX (100.0),		/* Size of scan area in TA mode in mm (x) */
+  SANE_FIX (100.0),		/* Size of scan area in TA mode in mm (y) */
+
+  SANE_FIX (0.0),		/* Start of white strip in TA mode in mm (y) */
+
+  0, 0, 0,			/* RGB CCD Line-distance correction in pixel */
+  0,				/* CCD distcance for CCD with 6 lines) */
+
+  COLOR_ORDER_RGB,		/* Order of the CCD/CIS colors */
+  {0x32, 0x02, 0x26, 0x07, 0x26, 0x09},	/* Default offset/gain */
+  {0x127, 0x127, 0x127},	/* Default exposure parameters */
+  SANE_FIX (1.5),		/* Default gamma value */
+
+  SANE_TRUE,			/* Is this a CIS scanner? */
+  GT68XX_FLAG_NO_CALIBRATE	/* Which flags are needed for this scanner? */
+};
+
 static GT68xx_Model mustek_2400cu_model = {
   "mustek-bearpaw-2400-cu",	/* Name */
   "Mustek",			/* Device vendor string */
@@ -1930,6 +1978,7 @@ static GT68xx_USB_Device_Entry gt68xx_usb_device_list[] = {
   {0x07b3, 0x040b, &plustek_ops12_model},
   {0x07b3, 0x040e, &plustek_ops24_model},
   {0x07b3, 0x0412, &plustek_opticslim_m12_model},
+  {0x07b3, 0x046e, &plustek_opticslim500plus_model},
   {0x07b3, 0x0413, &plustek_opticslim1200_model},
   {0x07b3, 0x0422, &plustek_opticslim2400_model},
   {0x07b3, 0x045f, &iriscan_express_2_model},

backend/gt68xx_high.c

@@ -1848,6 +1848,11 @@ gt68xx_afe_cis_auto (GT68xx_Scanner * scanner)
 
   DBG (5, "gt68xx_afe_cis_auto: start\n");
 
+  if (scanner->dev->model->flags & GT68XX_FLAG_NO_CALIBRATE)
+  {
+    return SANE_STATUS_GOOD;
+  }
+
   memset (&old_afe, 255, sizeof (old_afe));
 
   /* Start with the preset exposure settings */

backend/gt68xx_low.h

@@ -112,6 +112,9 @@
 #define GT68XX_FLAG_SHEET_FED       (1 << 12)	/* we have a sheet fed scanner */
 #define GT68XX_FLAG_HAS_CALIBRATE   (1 << 13)	/* for sheet fed scanners that be calibrated with
                                                    an calibration sheet */
+#define GT68XX_FLAG_NO_CALIBRATE   (1 << 14)	/* don't calibrate, because calibration is broken */
+
+
 
 /* Forward typedefs */
 typedef struct GT68xx_USB_Device_Entry GT68xx_USB_Device_Entry;

doc/descriptions/gt68xx.desc

@@ -406,6 +406,12 @@
 :status :good
 :comment "Same as OpticSlim 2400."
 
+:model "OpticSlim 500 plus"
+:interface "USB"
+:usbid "0x07b3" "0x046e"
+:status :good
+:comment "Need firmware from windows driver. Image is upside down because hardware in this model is upside down. Buttons not tested."
+
 :model "Iriscan Express 2"
 :interface "USB"
 :usbid "0x07b3" "0x045f"