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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Author" content="Oliver Rauch">
<meta name="Description" content="unix scanner driver for UMAX scanners">
<title>SANE-umax - Configuration</title>
</head>
<body text="#000000" bgcolor="#FFFFFF" link="#0000EF" vlink="#51188E" alink="#FF0000">
<table>
<tr>
<td width=200>
<img SRC="sane-logo.jpg" alt="SANE-logo" hspace=60 align=BOTTOM>
<br>
<img SRC="sane-umax-text.jpg" alt="UMAX-logo" HSPACE=50>
</td>
<td>
<blockquote>
<h1><font color="#009900">Configuration</font></h1>
</blockquote>
</td>
</tr>
</table>
<hr WIDTH="100%">
<table>
<tr>
<td VALIGN=TOP WIDTH="250" BGCOLOR="#E0E0FF">
<br>
<ul>
<li><a href="sane-umax-doc.html">Index</a></li>
<li>
Frontend options:
<ul>
<li><a href="sane-umax-standard-options-doc.html">Standard options</a></li>
<li><a href="sane-umax-advanced-options-doc.html">Advanced options</a></li>
</ul>
</li>
<li>
Supported scanners:
<ul>
<li><a href="sane-umax-powerlook-doc.html">Power Look series</a></li>
<li><a href="sane-umax-mirage-doc.html">Mirage series</a></li>
<li><a href="sane-umax-astra-doc.html">Astra series</a></li>
<li><a href="sane-umax-vista-doc.html">Vista series</a></li>
<li><a href="sane-umax-uc-doc.html">UC series</a></li>
<li><a href="sane-umax-others-doc.html">others</a></li>
<li><a href="sane-umax-not-listed-doc.html">Not listed scanners</a></li>
<li><a href="sane-umax-scanner-clones-doc.html">UMAX scanner clones</a></li>
</ul>
</li>
<li><a href="sane-umax-parport-doc.html">UMAX parallel port scanners</a></li>
<li><a href="sane-umax-config-doc.html">Configuration</a></li>
<li><a href="sane-umax-speed-doc.html">Speed of UMAX scanners</a></li>
<li><a href="http://www.rauch-domain.de/sane-umax">SANE-umax homepage</a></li>
<li><a href="http://www.sane-project.org">SANE homepage</a></li>
<li><a href="http://www.xsane.org/">XSane homepage</a></li>
</ul>
<br>
</td>
<td VALIGN=TOP BGCOLOR="#FFFFFF">
<blockquote>
<br>
<h2>
CONFIGURATION:
</h2>
<blockquote>The configuration file for this backend resides in
<dl>
<dd>
/usr/local/etc/sane.d/umax.conf.
</dd>
</dl>
</blockquote>
<blockquote>
Its contents is a list of options and device names that correspond to UMAX
scanners. Empty lines and lines starting with a hash mark (#) are ignored.
A sample configuration file is shown below:
<br>
<dl>
<dd>option scsi-buffer-size-min 65536</dd>
<dd>option scsi-buffer-size-max 131072</dd>
<dd>option scan-lines 40</dd>
<dd>option preview-lines 10</dd>
<dd>option scsi-maxqueue 2</dd>
<dd>option handle-bad-sense-error 0</dd>
<dd>option execute-request-sense 0</dd>
<dd>option force-preview-bit-rgb 0</dd>
<dd>option slow-speed -1</dd>
<dd>option care-about-smearing -1</dd>
<dd>option calibration-full-ccd -1</dd>
<dd>option calibration-width-offset -1</dd>
<dd>option calibration-bytes-pixel -1</dd>
<dd>option invert-shading-data -1</dd>
<dd>option lamp-control-available 0</dd>
<dd>#scsi Vendor Model Type Bus Channel ID LUN</dd>
<dd>scsi UMAX * Scanner * * * * *</dd>
<dd>/dev/scanner</dd>
<dd># this is a comment</dd>
<dd>/dev/sge</dd>
</dl>
</blockquote>
<blockquote>
The special device name must be a generic SCSI device or a
symlink to such a device. To find out to which device your scanner is assigned
and how you have to set the permissions of that device, have a look at
<a href="http://www.sane-project.org/man/sane-scsi.5.html">sane-scsi</a>.
</blockquote>
<blockquote>
When the generic scsi driver of the system supports selection
of scsi buffer sizes the umax backend calculates the scsi buffer
sizes in dependence of the numbers of bytes per scanline.
With <i>scsi-buffer-size-min</i> and <i>scsi-buffer-size-max</i>
the scsi buffer size can be defined in a range between 4KB and 1MB.
Especially the minimum value is very important. If this value is
set too small the backend is not able to send gamma tables to the
scanner or to do a correct color calibration. This may result in
strange color effects. If the minimum value is set too large then
the backend is not able to allocate the requested scsi buffer size
and aborts with out of memory error. The default is 32KB, for
some scanners it should be increased to 64KB.
<p>
The option <i>scan-lines</i> defines the number of lines that
shall be scanned with one scsi read command for a real scan.
The number of lines that are read with one scsi command for
preview scans are defined by the option <i>preview-lines</i>.
Both have to be in the range between 1 and 65536.
<p>
With the option <i>scsi-maxqueue</i> you can define the number
of scsi commands that shall be queued. UMAX scanners do not
support command queueing - as far as I know. But some scsi controller
drivers do support queueing in the kernel. In this case it does not
make sense to queue more than 2 commands.
<p>
When you are able to do color previews but color scans do not
work you can set the option <i>force-preview-bit-rgb 1</i>.
This always sets the preview bit when acquiring a color scan.
The image quality may be reduced.
<p>
Some scanners (especially very old scanners) may need the options
<i>slow-speed</i> and/or <i>care-about-smearing</i>. The value
-1 uses the value defined by the driver, 0 disables the feature,
1 enables the feature. <b>Do not change these options unless
you really know what you do, you can destroy your scanner
by setting wrong values for this options!!!</b>
<p>
Some scsi drivers (or may be some scanners) do return an invalid
error code when a scsi command is executed. There are different
ways to handle such bad error codes. You can define the behaviour
of the umax-backend by setting the option <i>handle-bad-sense-error</i>
in umax.conf. You can set the following values:<br>
<dl>
<dd>0 : handle as device busy</dd>
<dd>1 : handle as ok</dd>
<dd>2 : handle as i/o error</dd>
<dd>3 : ignore bad error code, continue sense handler</dd>
</dl>
In most cases it does work when this condition is handled as a
device busy state so this is the default (0).
<p>
The option <i>execute-request-sense</i> disables(0) or enables(1)
the scsi command REQUEST_SENSE. The command can be called when the
scanner asks the driver to do calibration. The driver does
not know the required calibration parameters for all scanners.
Some scanners return the needed parameters when the driver
executes the REQUEST_SENSE command. But there is a problem
with the REQUEST_SENSE command on some systems with some
scsi controller drivers. This can cause a system hang.
So the safe way is to disable the REQUEST_SENSE command,
but the driver may not be able to do correct calibration
in this case.
<p>
For some scanners the calibration has to be done by the driver.
For this the driver has to know some values about the calibration
data. When the REQUEST_SENSE command is disabled or the scanner
does not return the correct data the driver needs to know the
correct parameters. For some scanners the parameters are stored
in the driver. When these values are not set correct the image
might look very strange. To be sure that you have a problem
with the calibration please enable debug output.
<p>
<i>calibration-full-ccd</i>:<br>
The calibration can be done for each element of the CCD (1)
or for each pixel of the requested image(0).
The value -1 enables the value defined in the driver.
<p>
<i>calibration-width-offset</i>:<br>
Some scanners use more pixels than calculated by image/CCD
parameters. A value larger or equal 0 defines the offset.
The value -1 enables the value defined in the driver.
<p>
<i>calibration-bytes-pixel</i>:<br>
Some scanners use 1 byte calibration data although the
scanner supports more than 8 bits/pixel. You can define
1 or 2 bytes per pixel calinration data.
The value -1 enables the value defined in the driver.
<p>
<i>invert-shading-data</i>:<br>
Some scanners need inverted shading data (1), others
need original shading data (0).
The value -1 enables the value defined in the driver.
</blockquote>
<h2>
SCSI ADAPTER TIPS:</h2>
<blockquote>
The UMAX-scanners do block the scsi-bus for a few seconds while
scanning. It is not necessary to connect the scanner to its own SCSI-adapter.
But if you need short response time for your SCSI-harddisk (e.g. if your
computer is a file-server), I suggest you use an own SCSI-adapter for your
UMAX-scanner.
</blockquote>
<blockquote>
The SCSI-adapters that are shipped with some Umax-scanners
are very simple ones. I suggest not to use them. If you really want to
try: the UDS-IS11 uses a DTC3181E chip (compatible to NCR5380). On linux
you may have the chance to get it work with the recent g_NCR5380-driver.
The card does not have IRQ/DMA. Try the following option for kernel boot
option:
<p> dtc_3181e=0x280,255
<p> or use the following command:
<p> insmod g_NCR5380 ncr_irq=255
ncr_addr=0x280 dtc_3181e=1
<p> - ncr_irq=255 : no IRQ, no DMA
<br> - ncr_irq=254 : autoprobe IRQ
<br> - ncr_addr : can be: 0x220 0x240 0x280 0x2A0 0x2C0 0x300 0x320 0x340
<br>
<p>
For
<a href="http://support.umax.co.uk/technotes/f096B.htm">information about the umax-scsi-cards</a>
take a look here.
</blockquote>
<blockquote>
See the relevant hardware FAQs and HOWTOs for your platform
for more information.
<br>See also: <a href="http://www.sane-project.org/man/sane-scsi.5.html">sane-scsi</a>
</blockquote>
<h2>FILES:</h2>
<blockquote>
<ul>
<li>The backend configuration file: /usr/local/etc/sane.d/umax.conf</li>
<li>The static library implementing this backend: /usr/local/lib/sane/libsane-umax.a</li>
<li>
The shared library implementing this backend : /usr/local/lib/sane/libsane-umax.so<br>
(present on systems that support dynamic loading)
</li>
</ul>
</blockquote>
<h2>ENVIRONMENT:</h2>
<blockquote>
<ul>
<li>SANE_DEBUG_UMAX</li>
</ul>
</blockquote>
<blockquote>
If the library was compiled with debug support enabled, this
environment variable controls the debug level for this backend. E.g., a
value of 128 requests all debug output to be printed. Smaller levels reduce
verbosity:
</blockquote>
<center>
<table BORDER>
<tr BGCOLOR="#40E0D0">
<td VALIGN=TOP COLSPAN="2"><b><font face="Arial">SANE_DEBUG_UMAX values</font></b></td>
</tr>
<tr>
<td WIDTH="10%">
<address>
<b>Number</b></address>
</td>
<td WIDTH="90%">
<address>
<b>Remark</b></address>
</td>
</tr>
<tr>
<td>
<address>
0</address>
</td>
<td>print important errors (printed each time)</td>
</tr>
<tr>
<td>
<address>
1</address>
</td>
<td>print errors</td>
</tr>
<tr>
<td>2</td>
<td>print sense</td>
</tr>
<tr>
<td>
<address>
3</address>
</td>
<td>print warnings</td>
</tr>
<tr>
<td>4</td>
<td>print scanner-inquiry</td>
</tr>
<tr>
<td>
<address>
5</address>
</td>
<td>print information</td>
</tr>
<tr>
<td>6</td>
<td>print less important information</td>
</tr>
<tr>
<td>7</td>
<td>print called procedures</td>
</tr>
<tr>
<td>8</td>
<td>print reader_process messages</td>
</tr>
<tr>
<td>
<address>
10</address>
</td>
<td>print called sane-init-routines</td>
</tr>
<tr>
<td>
<address>
11</address>
</td>
<td>print called sane-procedures</td>
</tr>
<tr>
<td>
<address>
12</address>
</td>
<td>print sane-infos</td>
</tr>
<tr>
<td>
<address>
13</address>
</td>
<td>print sane option control messages</td>
</tr>
</table></center>
<h4>Example:</h4>
<blockquote>
export SANE_DEBUG_UMAX=8
</blockquote>
<center>
<hr WIDTH="100%">
<br>
<font color="#009900">This page has been changed on 27th. february 2001</font>
<br>
<br>
</center>
</blockquote>
</td>
</tr>
</table>
<hr WIDTH="100%">
<blockquote>
Author: <a href="mailto:Oliver.Rauch@rauch-domain.de">Oliver Rauch</a>
</blockquote>
</body>
</html>
|
