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<!-- received="Thu Dec 2 13:09:23 1999 PST" -->
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<!-- sent="Thu, 2 Dec 1999 22:17:35 +0100" -->
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<!-- name="Dick Streefland" -->
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<!-- email="Dick.Streefland@inter.NL.net" -->
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<!-- subject="[patch] support for Ricoh IS50" -->
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<title>sane-devel: [patch] support for Ricoh IS50</title>
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<h1>[patch] support for Ricoh IS50</h1>
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<b>Dick Streefland</b> (<a href="mailto:Dick.Streefland@inter.NL.net"><i>Dick.Streefland@inter.NL.net</i></a>)<br>
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<i>Thu, 2 Dec 1999 22:17:35 +0100</i>
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<p>
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<ul>
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<li> <b>Messages sorted by:</b> <a href="date.html#20">[ date ]</a><a href="index.html#20">[ thread ]</a><a href="subject.html#20">[ subject ]</a><a href="author.html#20">[ author ]</a>
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<li> <b>Next message:</b> <a href="0021.html">Manuel Panea: "Re: Problem with SANE and SCSI scanner"</a>
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<li> <b>Previous message:</b> <a href="0019.html">Brian Macy: "Re: SANE Net backend suggestion..."</a>
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<li> <b>Next in thread:</b> <a href="0092.html">Petter Reinholdtsen: "Re: [patch] support for Ricoh IS50"</a>
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<li> <b>Reply:</b> <a href="0092.html">Petter Reinholdtsen: "Re: [patch] support for Ricoh IS50"</a>
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</ul>
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<!-- body="start" -->
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--huq684BweRXVnRxX<br>
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Content-Type: text/plain; charset=us-ascii<br>
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<p>
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Hi,<br>
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<p>
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I made a small modification to the Ricoh backend to add support for<br>
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the Ricoh IS50 scanner in addition to the IS60. The original author of<br>
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this driver told me that he is not actively working on this driver<br>
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anymore, and he suggested that I post this patch on this mailing list.<br>
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<p>
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So, here it is. The modifications are:<br>
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* Recognize the IS50 in addition to the IS60.<br>
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* Limited the resolution to 400 dpi for the IS50.<br>
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* Reverse the sense of the contrast setting for the IS50.<br>
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(slider to the right ==> more contrast)<br>
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These modifications shouldn't affect IS60 scanners. The attached patch<br>
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is relative to the sane-1.0.1 source tree.<br>
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<p>
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<pre>
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--
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Dick Streefland //// De Bilt
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<a href="mailto:dick.streefland@inter.nl.net">dick.streefland@inter.nl.net</a> (@ @) The Netherlands
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------------------------------oOO--(_)--OOo------------------
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<p>
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--huq684BweRXVnRxX
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Content-Type: text/plain; charset=us-ascii
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Content-Disposition: attachment; filename="sane-1.0.1-is50.patch"
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<p>
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--- sane-1.0.1/backend/ricoh.c.orig Sat Apr 3 06:06:07 1999
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+++ sane-1.0.1/backend/ricoh.c Thu Nov 25 22:06:33 1999
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@@ -75,6 +75,7 @@
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static int num_devices = 0;
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static Ricoh_Device *first_dev = NULL;
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static Ricoh_Scanner *first_handle = NULL;
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+static int is50;
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#include "ricoh-scsi.c"
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@@ -141,12 +142,14 @@
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if (ibuf.devtype != 6
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|| strncmp (ibuf.vendor, "RICOH", 5) != 0
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- || strncmp (ibuf.product, "IS60", 4) != 0)
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+ || (strncmp (ibuf.product, "IS60", 4) != 0
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+ && strncmp (ibuf.product, "IS50", 4) != 0))
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{
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DBG (1, "attach: device doesn't look like the Ricoh scanner I know\n");
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sanei_scsi_close (fd);
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return (SANE_STATUS_INVAL);
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}
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+ is50 = (strncmp (ibuf.product, "IS50", 4) == 0);
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DBG (3, "attach: sending TEST_UNIT_READY\n");
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status = test_unit_ready (fd);
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@@ -241,7 +244,10 @@
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if (wbuf.image_comp == RICOH_GRAYSCALE || wbuf.image_comp == RICOH_DITHERED_MONOCHROME)
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{
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dev->info.brightness_default = 256 - wbuf.brightness;
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- dev->info.contrast_default = 256 - wbuf.contrast;
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+ if (is50)
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+ dev->info.contrast_default = wbuf.contrast;
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+ else
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+ dev->info.contrast_default = 256 - wbuf.contrast;
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}
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else /* wbuf.image_comp == RICOH_BINARY_MONOCHROME */
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{
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@@ -346,7 +352,7 @@
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s->opt[OPT_X_RESOLUTION].type = SANE_TYPE_INT;
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s->opt[OPT_X_RESOLUTION].unit = SANE_UNIT_DPI;
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s->opt[OPT_X_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE;
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- s->opt[OPT_X_RESOLUTION].constraint.range = &is60_res_range;
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+ s->opt[OPT_X_RESOLUTION].constraint.range = (is50 ? &is50_res_range : &is60_res_range);
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s->val[OPT_X_RESOLUTION].w = s->hw->info.xres_default;
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/* y resolution */
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@@ -356,7 +362,7 @@
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s->opt[OPT_Y_RESOLUTION].type = SANE_TYPE_INT;
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s->opt[OPT_Y_RESOLUTION].unit = SANE_UNIT_DPI;
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s->opt[OPT_Y_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE;
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- s->opt[OPT_Y_RESOLUTION].constraint.range = &is60_res_range;
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+ s->opt[OPT_Y_RESOLUTION].constraint.range = (is50 ? &is50_res_range : &is60_res_range);
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s->val[OPT_Y_RESOLUTION].w = s->hw->info.yres_default;
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/* "Geometry" group: */
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@@ -833,7 +839,10 @@
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if (wbuf.image_comp == RICOH_DITHERED_MONOCHROME)
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wbuf.mrif_filtering_gamma_id = (SANE_Byte) 0x10;
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wbuf.brightness = 256 - (SANE_Byte) s->brightness;
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- wbuf.contrast = 256 - (SANE_Byte) s->contrast;
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+ if (is50)
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+ wbuf.contrast = (SANE_Byte) s->contrast;
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+ else
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+ wbuf.contrast = 256 - (SANE_Byte) s->contrast;
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}
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else /* wbuf.image_comp == RICOH_BINARY_MONOCHROME */
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{
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--- sane-1.0.1/backend/ricoh.h.orig Sat Feb 27 21:16:52 1999
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+++ sane-1.0.1/backend/ricoh.h Thu Nov 25 22:02:37 1999
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@@ -80,6 +80,13 @@
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0 /* quantization */
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};
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+static const SANE_Range is50_res_range =
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+ {
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+ 75, /* minimum */
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+ 400, /* maximum */
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+ 0 /* quantization */
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+ };
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+
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static const SANE_Range is60_res_range =
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{
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100, /* minimum */
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<p>
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--huq684BweRXVnRxX--
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<p>
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<pre>
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--
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Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a>
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To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a>
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</pre>
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<!-- body="end" -->
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<p>
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<ul>
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<!-- next="start" -->
|
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<li> <b>Next message:</b> <a href="0021.html">Manuel Panea: "Re: Problem with SANE and SCSI scanner"</a>
|
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<li> <b>Previous message:</b> <a href="0019.html">Brian Macy: "Re: SANE Net backend suggestion..."</a>
|
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<!-- nextthread="start" -->
|
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<li> <b>Next in thread:</b> <a href="0092.html">Petter Reinholdtsen: "Re: [patch] support for Ricoh IS50"</a>
|
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<li> <b>Reply:</b> <a href="0092.html">Petter Reinholdtsen: "Re: [patch] support for Ricoh IS50"</a>
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<!-- reply="end" -->
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</ul>
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